Example #1
0
def CH4results():
    choicesaveresults = raw_input("Save results? (y/n)")
    results = []
    for D_0 in CH4INLETS_VARY_D_0:
        result = CCDroplet.main(gri30_gas,ctCH4,"methane",CH4_TUP,CH4CH_PARAMS,D_0,Hrefchoice='y', T_boilo=111.5)
        results.append(result)

    if choicesaveresults == 'y':
        for result in results:
            # sanity check
            try:
                Dsizestr = str(result['cleandat'].D[0]*10**6).split('.')[0]
            except KeyError:
                print "KeyError still! I'll print the type:"
                print type(result)
            filename = CH4_TUP.Fuelstr+str(CCDroplet.NUM_STEPS)+"steps"+"D"+Dsizestr+'v_d'+str(result['cleandat'].v_d[0]).split('.')[0]
            tosave = pd.DataFrame(result['cleandat']._asdict(),index=result['xclean'])

# EY : 20160311 I wanted to implement hdf5 requiring PyTables but pip install
# of PyTables was nontrivial; received warning
# Warning! ***HDF5 library version mismatched error*** 
# Abort trap: 6
# would like to know best practices for serialization of pandas DataFrame
#            try:
#                tosave.to_hdf("./data/"+filename,filename)
#            except:
#                print "We're not in a directory where there's a subdirectory for data.  Saving into working directory."
#                try:
#                    tosave.to_hdf(filename,filename)
#                except:
#                    print "PyTables may not be installed. Try pickle.  Be careful of reading unknown pickles (see pandas doc for warning)"
            try:
                tosave.to_pickle("./data/"+filename+'.pkl')
            except:
                print "We're not in a directory where there's a subdirectory for data.  Saving into working directory."
                tosave.to_pickle(filename+'.pkl')

    
    # (surjective) transforming from list of dicts, that includes raw data, to list of namedtuples of pandas dataframe, which only includes clean data
    results = [pd.DataFrame(result['cleandat']._asdict(),index=result['xclean']) for result in results]
#    D_0s = [int(str(result.D[0]*10**6).split('.')[0]) for result in results]
    D_0s = [str(result.D[0]*10**6).split('.')[0] for result in results]

    results = pd.concat(results,axis=1, keys=D_0s)
    filename = CH4_TUP.Fuelstr+str(CCDroplet.NUM_STEPS)+"steps"+ str(results[D_0s[0]].v_d[0.0]).split('.')[0]
    try:
        results.to_pickle("./data/"+filename+'.pkl')
    except:
        print "We're not in a directory where there's a subdirectory for data.  Saving into working directory."
        results.to_pickle(filename+'.pkl')
    

    return results
Example #2
0
def output_from_main(gas,liquid,speciesname,reaction_tuple,chamber_params,inlet_conds,Hrefchoice,T_boilo):
    """
    output_from_main(gas,liquid,speciesname,reaction_tuple,chamber_params,inlet_conds,T_boilo)
    """
    choicesaveresults = raw_input("Save results? (y/n)")

    results = []
    for D_0 in inlet_conds:
        result = CCDroplet.main(gas,liquid,speciesname,reaction_tuple,chamber_params,D_0,Hrefchoice, T_boilo)
        results.append(result)


    if choicesaveresults == 'y':
        for result in results:
            try:
                Dsizestr = str(result['cleandat'].D[0]*10**6).split('.')[0]
            except KeyError:
                print "KeyError still! I'll print the type:"
                print type(result)
            filename = speciesname+"steps"+str(CCDroplet.NUM_STEPS)+"D"+Dsizestr+'v_d'+str(result['cleandat'].v_d[0]).split('.')[0]

            
            tosave = pd.DataFrame(result['cleandat']._asdict(),index=result['xclean'])

            try:
                tosave.to_pickle("./data/"+filename)
            except:
                print "We're not in a directory where there's a subdirectory for data.  Saving into working directory."
                tosave.to_pickle(filename)
    
    # (surjective) transforming from list of dicts, that includes raw data, to list of namedtuples of pandas dataframe, which only includes clean data
    results = [pd.DataFrame(result['cleandat']._asdict(),index=result['xclean']) for result in results]
#    D_0s = [int(str(result.D[0]*10**6).split(',')[0]) for result in results]
    D_0s = [str(result.D[0]*10**6).split(',')[0] for result in results]    

    results = pd.concat(results,axis=1, keys=D_0s)
    
    filename = speciesname+str(CCDroplet.NUM_STEPS)+"steps"+ str(results[D_0s[0]].v_d[0.0]).split('.')[0] +'v_d'
    try:
        results.to_pickle("./data/"+filename)
    except:
        print "We're not in a directory where there's a subdirectory for data.  Saving into working directory."
        results.to_pickle(filename)
    
    return results
Example #3
0
def CH4result(key):
    """
    calculations for a single initial droplet size only
    """
    result = CCDroplet.main(gri30_gas,ctCH4,"methane",CH4_TUP,CH4CH_PARAMS,CH4INLETS_VARY_D_0[key],Hrefchoice='y', Tboilo=111.5)
    return result
Example #4
0
def compute_flows_phi_g_v_g(gas,liquid,reaction_tuple,chamber_params,inlet_conds,T_boil,oderesults,Hrefchoice='y'):
    """
    compute_flows_phi_g_v_g = compute_flows_phi_g_v_g(gas,liquid,reaction_tuple,T_boil,P,Hrefchoice)
    
    oderesults - <CCDroplet.T_gDv_d_Tuple> 
    """
    P = inlet_conds.TP[1]
    h_fg,T_boil,rho_l,h_l=CCDroplet._process_liquid_Droplet(gas,liquid,reaction_tuple,T_boil,P,Hrefchoice)

    Fu_ind = gas.species_index(reaction_tuple.Fuelstr)
    Ox_ind = gas.species_index(reaction_tuple.Oxstr)

    gas.X = CCDroplet.phi_to_X(1, reaction_tuple)
    F_over_O = gas.Y[Fu_ind]/gas.Y[Ox_ind]

    flow_inlet,initial_conds = CCDroplet.get_initial_flow_vals(gas,reaction_tuple,chamber_params,inlet_conds,rho_l,F_over_O)

    dotm_Ox0 = flow_inlet.dotm_Ox # kg/s
    
    # Additional Python step: create vectors to store data                             

    # try if it's a named_tuple; then try if it's a panda DataFrame
    try:
        NUM_STEPS = len(oderesults[0])
    except:
        NUM_STEPS = oderesults.count()[0]

    dotm_l = np.zeros(NUM_STEPS)
    dotm_g              = np.zeros(NUM_STEPS)
    phi_g               = np.zeros(NUM_STEPS)
    v_g                 = np.zeros(NUM_STEPS)
    
    dotm_l[0] = flow_inlet.dotm_l
    dotm_g[0]           = flow_inlet.dotm_g
    phi_g[0]            = inlet_conds.phi_g
    v_g[0]              = flow_inlet.v_g

    # first try if oderesults is a namedtuple; then try if it's a panda DataFrame
    try:
        D_0 = oderesults.D[0,0]
    except:
        D_0 = oderesults.D.loc[0]

    for k in range(1,NUM_STEPS):
        # first try if oderesults is a namedtuple; then try if it's a panda DataFrame
        try:
            dotm_lx = flow_inlet.dotm_l* (oderesults.D[k]/D_0)**3
        except:
            dotm_lx = flow_inlet.dotm_l*(oderesults.D.iloc[k]/D_0)**3

        dotm_gx = flow_inlet.dotm_g + flow_inlet.dotm_l - dotm_lx
        phi_gx  = ((dotm_gx/dotm_Ox0)-1)/F_over_O
        
        gas.X = CCDroplet.phi_to_X(phi_gx,reaction_tuple)
        MW_gphi_g = gas.mean_molecular_weight

        try:
            v_gx    = dotm_gx*ct.gas_constant*oderesults.T_g[k]/(MW_gphi_g*P*chamber_params.A_cc)
        except:
            v_gx    = dotm_gx*ct.gas_constant*oderesults.T_g.iloc[k]/(MW_gphi_g*P*chamber_params.A_cc)

        dotm_l[k]                   = dotm_lx
        dotm_g[k]                   = dotm_gx
        phi_g[k]                    = phi_gx
        v_g[k]                      = v_gx

    flows = CCDroplet.Flow_Tuple(dotm_l=dotm_l,dotm_Ox=dotm_Ox0,dotm_g=dotm_g,v_g=v_g)
    
    return flows, phi_g