Пример #1
0
def write_geometry(avl_object):

    # unpack inputs
    aircraft = avl_object.features
    geometry_file = avl_object.settings.filenames.features

    # Open the geometry file after purging if it already exists
    purge_files([geometry_file])

    geometry = open(geometry_file, 'w')

    with open(geometry_file, 'w') as geometry:

        header_text = make_header_text(avl_object)
        geometry.write(header_text)
        for w in aircraft.wings:
            avl_wing = translate_avl_wing(w)
            wing_text = make_surface_text(avl_wing)
            geometry.write(wing_text)
        for b in aircraft.fuselages:
            avl_body = translate_avl_body(b)
            body_text = make_body_text(avl_body)
            geometry.write(body_text)

    return
Пример #2
0
def make_case_command(avl_object, case):
    """ Makes commands for case execution in AVK

    Assumptions:
        None
        
    Source:
        None

    Inputs:
        case.index
        case.tag
        case.result_filename

    Outputs:
        case_command
 
    Properties Used:
        N/A
    """
    base_case_command = \
'''{0}
x
{1}
{2}
'''
    index = case.index
    case_tag = case.tag
    res_type = 'st'  # This needs to change to multiple ouputs if you want to add the ability to read other types of results
    results_file = case.result_filename
    purge_files([results_file])
    case_command = base_case_command.format(index, res_type, results_file)

    return case_command
Пример #3
0
def write_geometry(avl_object):

    # unpack inputs
    aircraft = avl_object.features
    geometry_file = avl_object.settings.filenames.features

    # Open the geometry file after purging if it already exists
    purge_files([geometry_file])

    geometry = open(geometry_file, "w")

    with open(geometry_file, "w") as geometry:

        header_text = make_header_text(avl_object)
        geometry.write(header_text)
        for w in aircraft.wings:
            avl_wing = translate_avl_wing(w)
            wing_text = make_surface_text(avl_wing)
            geometry.write(wing_text)
        for b in aircraft.fuselages:
            avl_body = translate_avl_body(b)
            body_text = make_body_text(avl_body)
            geometry.write(body_text)

    return
Пример #4
0
def make_case_command(avl_object,case):
    """ Makes commands for case execution in AVK

    Assumptions:
        None
        
    Source:
        None

    Inputs:
        case.index
        case.tag
        case.result_filename

    Outputs:
        case_command
 
    Properties Used:
        N/A
    """  
    base_case_command = \
'''{0}
x
{1}
{2}
'''
    index = case.index
    case_tag = case.tag
    res_type = 'st' # This needs to change to multiple ouputs if you want to add the ability to read other types of results
    results_file = case.result_filename
    purge_files([results_file])
    case_command = base_case_command.format(index,res_type,results_file)

    return case_command


#def make_eigen_mode_case_command(avl_object,case):

    #em_base_case_command = \
#'''
#MODE
#n
#w
#{0}
#'''
    #em_results_file = case.eigen_result_filename
    #purge_files([em_results_file])
    #em_case_command = em_base_case_command.format(em_results_file)

    #return em_case_command


     
     
     
Пример #5
0
def write_input_deck(avl_object):
    """ This fucntions writes the execution steps used in the AVL call

    Assumptions:
        None
        
    Source:
        Drela, M. and Youngren, H., AVL, http://web.mit.edu/drela/Public/web/avl

    Inputs:
        avl_object

    Outputs:
        None
 
    Properties Used:
        N/A
    """    
    
    open_runs = \
'''CASE {}
'''
    base_input = \
'''OPER
'''
    # unpack
    batch         = avl_object.current_status.batch_file
    deck_filename = avl_object.current_status.deck_file 

    # purge old versions and write the new input deck
    avl_regression_flag = avl_object.regression_flag
    if not avl_regression_flag:
        purge_files([deck_filename]) 
        with open(deck_filename,'w') as input_deck:
            input_deck.write(open_runs.format(batch))
            input_deck.write(base_input)
            for case_name in avl_object.current_status.cases:
                
                # write and store aerodynamic and static stability result files 
                case = avl_object.current_status.cases[case_name]
                case_command = make_case_command(avl_object,case)
                input_deck.write(case_command)
                
            #-----------------------------------------------------------------
            #          SUAVE-AVL dynamic stability analysis under development
            #          
            # write store dynamics stability result files 
            # em_case_command = make_eigen_mode_case_command(avl_object,case)
            # input_deck.write(em_case_command)
            #
            #-----------------------------------------------------------------
             
            input_deck.write('\n\nQUIT\n')

    return
Пример #6
0
def write_input_deck(avl_object):
    """ This fucntions writes the execution steps used in the AVL call

    Assumptions:
        None
        
    Source:
        Drela, M. and Youngren, H., AVL, http://web.mit.edu/drela/Public/web/avl

    Inputs:
        avl_object

    Outputs:
        None
 
    Properties Used:
        N/A
    """

    open_runs = \
'''CASE {}
'''
    base_input = \
'''OPER
'''
    # unpack
    batch = avl_object.current_status.batch_file
    deck_filename = avl_object.current_status.deck_file

    # purge old versions and write the new input deck
    avl_regression_flag = avl_object.regression_flag
    if not avl_regression_flag:
        purge_files([deck_filename])
        with open(deck_filename, 'w') as input_deck:
            input_deck.write(open_runs.format(batch))
            input_deck.write(base_input)
            for case_name in avl_object.current_status.cases:

                # write and store aerodynamic and static stability result files
                case = avl_object.current_status.cases[case_name]
                case_command = make_case_command(avl_object, case)
                input_deck.write(case_command)

            #-----------------------------------------------------------------
            #          SUAVE-AVL dynamic stability analysis under development
            #
            # write store dynamics stability result files
            # em_case_command = make_eigen_mode_case_command(avl_object,case)
            # input_deck.write(em_case_command)
            #
            #-----------------------------------------------------------------

            input_deck.write('\n\nQUIT\n')
Пример #7
0
def purge_directory(path, purge_subdirectories=False):
    """ Deletes the contents of a directory, then the directory itself.
	If purge_subdirectories is True, subdirectories of the directory will also
	be purged, recursively. In this case, the directory specified in the 'path'
	argument will always be removed at the end of this function. 
	However, if purge_subdirectories is False, files in 'path' will be deleted,
	but subdirectories and their contents will be left untouched. In this case, 
	the directory ('path' argument) will only be removed if it contains no
	subdirectories.


	Assumptions:
            None
	    
	Source:
	    None
    
	Inputs:
	    None
    
	Outputs:
	    None
    
	Properties Used:
	    N/A
	"""

    contents = os.listdir(path)
    subdir = []
    print contents

    for item in contents:
        print os.path.abspath(os.path.join(path, item))
        if os.path.isdir(os.path.abspath(os.path.join(path, item))):
            subdir.append(item)
            contents.remove(item)

    print subdir, contents
    purge_files(contents, path)

    if purge_subdirectories:
        for sub in subdir:
            purge_directory(os.path.join(path, sub), True)

    contents = os.listdir(path)
    if contents:
        print "Directory contains subdirectories which were not specified for deletion. Directory not fully deleted."
    else:
        os.rmdir(path)

    return
def make_case_command(avl_object,case):

    base_case_command = \
'''{0}
x
{1}
{2}
'''
    index = case.index
    case_tag = case.tag
    res_type = 'st' # This needs to change to multiple ouputs if you want to add the ability to read other types of results
    results_file = case.result_filename
    purge_files([results_file])
    case_command = base_case_command.format(index,res_type,results_file)

    return case_command
Пример #9
0
def make_case_command(avl_object,case):

    base_case_command = \
'''{0}
x
{1}
{2}
'''
    index = case.index
    case_tag = case.tag
    res_type = 'st' # This needs to change to multiple ouputs if you want to add the ability to read other types of results
    results_file = case.result_filename
    purge_files([results_file])
    case_command = base_case_command.format(index,res_type,results_file)

    return case_command
Пример #10
0
def write_geometry(avl_object, spanwise_vortices_per_meter):
    """This function writes the translated aircraft geometry into text file read 
    by AVL when it is called

    Assumptions:
        None
        
    Source:
        Drela, M. and Youngren, H., AVL, http://web.mit.edu/drela/Public/web/avl

    Inputs:
        avl_object

    Outputs:
        None

    Properties Used:
        N/A
    """

    # unpack inputs
    aircraft = avl_object.geometry
    geometry_file = avl_object.settings.filenames.features

    # Open the geometry file after purging if it already exists
    purge_files([geometry_file])
    geometry = open(geometry_file, 'w')

    with open(geometry_file, 'w') as geometry:
        header_text = make_header_text(avl_object)
        geometry.write(header_text)

        for w in aircraft.wings:
            avl_wing = translate_avl_wing(w)
            wing_text = make_surface_text(avl_wing,
                                          spanwise_vortices_per_meter)
            geometry.write(wing_text)

        for b in aircraft.fuselages:
            if b.tag == 'fuselage':
                avl_body = translate_avl_body(b)
                body_text = make_body_text(avl_body)
                geometry.write(body_text)

    return
Пример #11
0
def write_geometry(avl_object,spanwise_vortices_per_meter):
    """This function writes the translated aircraft geometry into text file read 
    by AVL when it is called

    Assumptions:
        None
        
    Source:
        Drela, M. and Youngren, H., AVL, http://web.mit.edu/drela/Public/web/avl

    Inputs:
        avl_object

    Outputs:
        None

    Properties Used:
        N/A
    """    
    
    # unpack inputs
    aircraft            = avl_object.geometry
    geometry_file       = avl_object.settings.filenames.features

    # Open the geometry file after purging if it already exists
    purge_files([geometry_file]) 
    geometry             = open(geometry_file,'w')

    with open(geometry_file,'w') as geometry:
        header_text       = make_header_text(avl_object)
        geometry.write(header_text)
        
        for w in aircraft.wings:
            avl_wing      = translate_avl_wing(w)
            wing_text     = make_surface_text(avl_wing,spanwise_vortices_per_meter)
            geometry.write(wing_text)  
                     
        for b in aircraft.fuselages:
            if b.tag == 'fuselage':
                avl_body  = translate_avl_body(b)
                body_text = make_body_text(avl_body)
                geometry.write(body_text)
            
    return
def write_input_deck(avl_object):

    open_runs = \
'''CASE {}
'''
    base_input = \
'''OPER
'''
    # unpack
    batch         = avl_object.current_status.batch_file
    deck_filename = avl_object.current_status.deck_file 

    # purge old versions and write the new input deck
    purge_files([deck_filename])
    with open(deck_filename,'w') as input_deck:
        input_deck.write(open_runs.format(batch))
        input_deck.write(base_input)
        for case in avl_object.current_status.cases:
            case_command = make_case_command(avl_object,case)
            input_deck.write(case_command)
        input_deck.write('\n\nQUIT\n')

    return
Пример #13
0
def write_input_deck(avl_object):

    open_runs = \
'''CASE {}
'''
    base_input = \
'''OPER
'''
    # unpack
    batch         = avl_object.current_status.batch_file
    deck_filename = avl_object.current_status.deck_file 

    # purge old versions and write the new input deck
    purge_files([deck_filename])
    with open(deck_filename,'w') as input_deck:
        input_deck.write(open_runs.format(batch))
        input_deck.write(base_input)
        for case in avl_object.current_status.cases:
            case_command = make_case_command(avl_object,case)
            input_deck.write(case_command)
        input_deck.write('\n\nQUIT\n')

    return
Пример #14
0
def purge_directory(path,purge_subdirectories=False):
	"""
	Deletes the contents of a directory, then the directory itself.
	If purge_subdirectories is True, subdirectories of the directory will also
	be purged, recursively. In this case, the directory specified in the 'path'
	argument will always be removed at the end of this function. 
	However, if purge_subdirectories is False, files in 'path' will be deleted,
	but subdirectories and their contents will be left untouched. In this case, 
	the directory ('path' argument) will only be removed if it contains no
	subdirectories.
	"""
	
	contents = os.listdir(path)
	subdir   = []
	print contents
	
	for item in contents:
		print os.path.abspath(os.path.join(path,item))
		if os.path.isdir(os.path.abspath(os.path.join(path,item))):
			subdir.append(item)
			contents.remove(item)
	
	print subdir, contents
	purge_files(contents,path)
	
	if purge_subdirectories:
		for sub in subdir:
			purge_directory(os.path.join(path,sub),True)
	
	contents = os.listdir(path)
	if contents:
		print "Directory contains subdirectories which were not specified for deletion. Directory not fully deleted."
	else:
		os.rmdir(path)
		
	return
Пример #15
0
def write_run_cases(avl_object):

    # imports
    from SUAVE.Methods.Aerodynamics.AVL.write_run_cases import make_controls_case_text

    # unpack avl_inputs
    batch_filename = avl_object.current_status.batch_file
    aircraft = avl_object.features

    base_case_text = \
'''

 ---------------------------------------------
 Run case  {0}:   {1}

 alpha        ->  alpha       =   {2}
 beta         ->  beta        =   {3}
 pb/2V        ->  pb/2V       =   0.00000
 qc/2V        ->  qc/2V       =   0.00000
 rb/2V        ->  rb/2V       =   0.00000
{4}

 alpha     =   0.00000     deg
 beta      =   0.00000     deg
 pb/2V     =   0.00000
 qc/2V     =   0.00000
 rb/2V     =   0.00000
 CL        =   0.00000
 CDo       =   0.00000
 bank      =   0.00000     deg
 elevation =   0.00000     deg
 heading   =   0.00000     deg
 Mach      =   {5}
 velocity  =   {6}     m/s
 density   =   {7}     kg/m^3
 grav.acc. =   {8}     m/s^2
 turn_rad. =   0.00000     m
 load_fac. =   0.00000
 X_cg      =   {9}     m
 Y_cg      =   {10}     m
 Z_cg      =   {11}     m
 mass      =   {12}     kg
 Ixx       =   {13}     kg-m^2
 Iyy       =   {14}     kg-m^2
 Izz       =   {15}     kg-m^2
 Ixy       =   {16}     kg-m^2
 Iyz       =   {17}     kg-m^2
 Izx       =   {18}     kg-m^2
 visc CL_a =   0.00000
 visc CL_u =   0.00000
 visc CM_a =   0.00000
 visc CM_u =   0.00000

'''#{4} is a set of control surface inputs that will vary depending on the control surface configuration

    # Open the geometry file after purging if it already exists
    purge_files([batch_filename])
    with open(batch_filename, 'w') as runcases:

        x_cg = avl_object.features.mass_properties.center_of_gravity[0]
        y_cg = avl_object.features.mass_properties.center_of_gravity[1]
        z_cg = avl_object.features.mass_properties.center_of_gravity[2]
        mass = 0  #avl_object.default_case.mass TODO: FIGURE OUT WHAT TO DEFAULT MASS TO, AND WHERE TO STORE IT BEFORE ANALYSIS.
        moments_of_inertia = aircraft.mass_properties.moments_of_inertia.tensor
        Ixx = moments_of_inertia[0][0]
        Iyy = moments_of_inertia[1][1]
        Izz = moments_of_inertia[2][2]
        Ixy = moments_of_inertia[0][1]
        Iyz = moments_of_inertia[1][2]
        Izx = moments_of_inertia[2][0]

        for case in avl_object.current_status.cases:
            index = case.index
            name = case.tag
            alpha = case.conditions.aerodynamics.angle_of_attack
            beta = case.conditions.aerodynamics.side_slip_angle
            mach = case.conditions.freestream.mach
            v = case.conditions.freestream.velocity
            rho = case.conditions.freestream.density
            g = case.conditions.freestream.gravitational_acceleration

            # form controls text
            controls = []
            if case.stability_and_control.control_deflections:
                for cs in case.stability_and_control.control_deflections:
                    cs_text = make_controls_case_text(cs)
                    controls.append(cs_text)
            controls_text = ''.join(controls)
            case_text = base_case_text.format(index, name, alpha, beta,
                                              controls_text, mach, v, rho, g,
                                              x_cg, y_cg, z_cg, mass, Ixx, Iyy,
                                              Izz, Ixy, Iyz, Izx)
            runcases.write(case_text)
Пример #16
0
def write_run_cases(avl_object):
    """ This function writes the run cases used in the AVL batch analysis

    Assumptions:
        None
        
    Source:
        Drela, M. and Youngren, H., AVL, http://web.mit.edu/drela/Public/web/avl

    Inputs:
        avl_object.current_status.batch_file                    [-]
        avl_object.geometry.mass_properties.center_of_gravity   [meters]

    Outputs:
        None

    Properties Used:
        N/A
    """

    # unpack avl_inputs
    batch_filename = avl_object.current_status.batch_file
    aircraft = avl_object.geometry

    base_case_text = \
'''

 ---------------------------------------------
 Run case  {0}:   {1}

 alpha        ->  alpha       =   {2}
 beta         ->  beta        =   {3}
 pb/2V        ->  pb/2V       =   0.00000
 qc/2V        ->  qc/2V       =   0.00000
 rb/2V        ->  rb/2V       =   0.00000
{4}

 alpha     =   0.00000     deg
 beta      =   0.00000     deg
 pb/2V     =   0.00000
 qc/2V     =   0.00000
 rb/2V     =   0.00000
 CL        =   0.00000
 CDo       =   0.00000
 bank      =   0.00000     deg
 elevation =   0.00000     deg
 heading   =   0.00000     deg
 Mach      =   {5}
 velocity  =   0.0000     m/s
 density   =   {6}     kg/m^3
 grav.acc. =   {7}     m/s^2
 turn_rad. =   0.00000     m
 load_fac. =   0.00000
 X_cg      =   {8}     m
 Y_cg      =   {9}     m
 Z_cg      =   {10}     m
 mass      =   {11}     kg
 Ixx       =   {12}     kg-m^2
 Iyy       =   {13}     kg-m^2
 Izz       =   {14}     kg-m^2
 Ixy       =   {15}     kg-m^2
 Iyz       =   {16}     kg-m^2
 Izx       =   {17}     kg-m^2
 visc CL_a =   0.00000
 visc CL_u =   0.00000
 visc CM_a =   0.00000
 visc CM_u =   0.00000

'''#{4} is a set of control surface inputs that will vary depending on the control surface configuration

    # Open the geometry file after purging if it already exists
    purge_files([batch_filename])
    with open(batch_filename, 'w') as runcases:

        x_cg = aircraft.mass_properties.center_of_gravity[0]
        y_cg = aircraft.mass_properties.center_of_gravity[1]
        z_cg = aircraft.mass_properties.center_of_gravity[2]
        mass = 0
        moments_of_inertia = aircraft.mass_properties.moments_of_inertia.tensor
        Ixx = moments_of_inertia[0][0]
        Iyy = moments_of_inertia[1][1]
        Izz = moments_of_inertia[2][2]
        Ixy = moments_of_inertia[0][1]
        Iyz = moments_of_inertia[1][2]
        Izx = moments_of_inertia[2][0]

        for case_name in avl_object.current_status.cases:
            case = avl_object.current_status.cases[case_name]
            index = case.index
            name = case.tag
            alpha = case.conditions.aerodynamics.angle_of_attack
            beta = case.conditions.aerodynamics.side_slip_angle
            mach = case.conditions.freestream.mach
            rho = case.conditions.freestream.density
            g = case.conditions.freestream.gravitational_acceleration

            # form controls text
            controls = []
            if case.stability_and_control.control_deflections:
                for cs in case.stability_and_control.control_deflections:
                    cs_text = make_controls_case_text(cs)
                    controls.append(cs_text)
Пример #17
0
def write_run_cases(avl_object):
    """ This function writes the run cases used in the AVL batch analysis

    Assumptions:
        None
        
    Source:
        Drela, M. and Youngren, H., AVL, http://web.mit.edu/drela/Public/web/avl

    Inputs:
        avl_object.current_status.batch_file                    [-]
        avl_object.geometry.mass_properties.center_of_gravity   [meters]

    Outputs:
        None

    Properties Used:
        N/A
    """    
    

    # unpack avl_inputs
    batch_filename = avl_object.current_status.batch_file
    aircraft       = avl_object.geometry

    base_case_text = \
'''

 ---------------------------------------------
 Run case  {0}:   {1}

 alpha        ->  alpha       =   {2}
 beta         ->  beta        =   {3}
 pb/2V        ->  pb/2V       =   0.00000
 qc/2V        ->  qc/2V       =   0.00000
 rb/2V        ->  rb/2V       =   0.00000
{4}

 alpha     =   0.00000     deg
 beta      =   0.00000     deg
 pb/2V     =   0.00000
 qc/2V     =   0.00000
 rb/2V     =   0.00000
 CL        =   0.00000
 CDo       =   0.00000
 bank      =   0.00000     deg
 elevation =   0.00000     deg
 heading   =   0.00000     deg
 Mach      =   {5}
 velocity  =   0.0000     m/s
 density   =   {6}     kg/m^3
 grav.acc. =   {7}     m/s^2
 turn_rad. =   0.00000     m
 load_fac. =   0.00000
 X_cg      =   {8}     m
 Y_cg      =   {9}     m
 Z_cg      =   {10}     m
 mass      =   {11}     kg
 Ixx       =   {12}     kg-m^2
 Iyy       =   {13}     kg-m^2
 Izz       =   {14}     kg-m^2
 Ixy       =   {15}     kg-m^2
 Iyz       =   {16}     kg-m^2
 Izx       =   {17}     kg-m^2
 visc CL_a =   0.00000
 visc CL_u =   0.00000
 visc CM_a =   0.00000
 visc CM_u =   0.00000

'''#{4} is a set of control surface inputs that will vary depending on the control surface configuration

    # Open the geometry file after purging if it already exists
    purge_files([batch_filename]) 
    with open(batch_filename,'w') as runcases:

        x_cg = aircraft.mass_properties.center_of_gravity[0]
        y_cg = aircraft.mass_properties.center_of_gravity[1]
        z_cg = aircraft.mass_properties.center_of_gravity[2]
        mass = 0 
        moments_of_inertia = aircraft.mass_properties.moments_of_inertia.tensor
        Ixx  = moments_of_inertia[0][0]
        Iyy  = moments_of_inertia[1][1]
        Izz  = moments_of_inertia[2][2]
        Ixy  = moments_of_inertia[0][1]
        Iyz  = moments_of_inertia[1][2]
        Izx  = moments_of_inertia[2][0]

        for case_name in avl_object.current_status.cases:
            case  = avl_object.current_status.cases[case_name]
            index = case.index
            name  = case.tag
            alpha = case.conditions.aerodynamics.angle_of_attack
            beta  = case.conditions.aerodynamics.side_slip_angle
            mach  = case.conditions.freestream.mach
            rho   = case.conditions.freestream.density
            g     = case.conditions.freestream.gravitational_acceleration

            # form controls text
            controls = []
            if case.stability_and_control.control_deflections:
                for cs in case.stability_and_control.control_deflections:
                    cs_text = make_controls_case_text(cs)
                    controls.append(cs_text)
            controls_text = ''.join(controls)
            case_text = base_case_text.format(index,name,alpha,beta,controls_text,
                                              mach,rho,g,x_cg,y_cg,z_cg,mass,
                                              Ixx,Iyy,Izz,Ixy,Iyz,Izx)
            runcases.write(case_text)

    return
Пример #18
0
def write_run_cases(avl_object):

    # imports
    from SUAVE.Methods.Aerodynamics.AVL.write_run_cases import make_controls_case_text

    # unpack avl_inputs
    batch_filename = avl_object.current_status.batch_file
    aircraft = avl_object.features

    base_case_text = """

 ---------------------------------------------
 Run case  {0}:   {1}

 alpha        ->  alpha       =   {2}
 beta         ->  beta        =   {3}
 pb/2V        ->  pb/2V       =   0.00000
 qc/2V        ->  qc/2V       =   0.00000
 rb/2V        ->  rb/2V       =   0.00000
{4}

 alpha     =   0.00000     deg
 beta      =   0.00000     deg
 pb/2V     =   0.00000
 qc/2V     =   0.00000
 rb/2V     =   0.00000
 CL        =   0.00000
 CDo       =   0.00000
 bank      =   0.00000     deg
 elevation =   0.00000     deg
 heading   =   0.00000     deg
 Mach      =   {5}
 velocity  =   {6}     m/s
 density   =   {7}     kg/m^3
 grav.acc. =   {8}     m/s^2
 turn_rad. =   0.00000     m
 load_fac. =   0.00000
 X_cg      =   {9}     m
 Y_cg      =   {10}     m
 Z_cg      =   {11}     m
 mass      =   {12}     kg
 Ixx       =   {13}     kg-m^2
 Iyy       =   {14}     kg-m^2
 Izz       =   {15}     kg-m^2
 Ixy       =   {16}     kg-m^2
 Iyz       =   {17}     kg-m^2
 Izx       =   {18}     kg-m^2
 visc CL_a =   0.00000
 visc CL_u =   0.00000
 visc CM_a =   0.00000
 visc CM_u =   0.00000

"""  # {4} is a set of control surface inputs that will vary depending on the control surface configuration

    # Open the geometry file after purging if it already exists
    purge_files([batch_filename])
    with open(batch_filename, "w") as runcases:

        x_cg = avl_object.features.mass_properties.center_of_gravity[0]
        y_cg = avl_object.features.mass_properties.center_of_gravity[1]
        z_cg = avl_object.features.mass_properties.center_of_gravity[2]
        mass = (
            0
        )  # avl_object.default_case.mass TODO: FIGURE OUT WHAT TO DEFAULT MASS TO, AND WHERE TO STORE IT BEFORE ANALYSIS.
        moments_of_inertia = aircraft.mass_properties.moments_of_inertia.tensor
        Ixx = moments_of_inertia[0][0]
        Iyy = moments_of_inertia[1][1]
        Izz = moments_of_inertia[2][2]
        Ixy = moments_of_inertia[0][1]
        Iyz = moments_of_inertia[1][2]
        Izx = moments_of_inertia[2][0]

        for case in avl_object.current_status.cases:
            index = case.index
            name = case.tag
            alpha = case.conditions.aerodynamics.angle_of_attack
            beta = case.conditions.aerodynamics.side_slip_angle
            mach = case.conditions.freestream.mach
            v = case.conditions.freestream.velocity
            rho = case.conditions.freestream.density
            g = case.conditions.freestream.gravitational_acceleration

            # form controls text
            controls = []
            if case.stability_and_control.control_deflections:
                for cs in case.stability_and_control.control_deflections:
                    cs_text = make_controls_case_text(cs)
                    controls.append(cs_text)
            controls_text = "".join(controls)
            case_text = base_case_text.format(
                index,
                name,
                alpha,
                beta,
                controls_text,
                mach,
                v,
                rho,
                g,
                x_cg,
                y_cg,
                z_cg,
                mass,
                Ixx,
                Iyy,
                Izz,
                Ixy,
                Iyz,
                Izx,
            )
            runcases.write(case_text)

    return