def _setValveCharacteristic(self, f):
"""Set or reset the valve characteristics.
"""
if type(f) == types.InstanceType:
self.setFunction(f)
else:
raise CanteraError("Wrong type for valve characteristic function.")
def kinetics(self, side='left'):
if side == 'left':
return self._leftkin
elif side == 'right':
return self._rightkin
else:
raise CanteraError("side must be 'left' or 'right'")
def __init__(self, left, right, name = '',
A = 1.0, K = 0.0, U = 0.0,
Q = None, velocity = None,
kinetics = [None, None]):
"""
Constructor arguments:
left - Reactor or reservoir on the left. Required.
right - Reactor or reservoir on the right. Required.
name - Name string.
If omitted, the name is 'Wall_n', where 'n' is an integer
assigned in the order walls are created.
A - Wall area [m^2]. Defaults to 1.0 m^2.
K - Wall expansion rate parameter [m/s/Pa]. Defaults to 0.0.
U - Overall heat transfer coefficient [W/m^2]. Defaults to 0.0
(adiabbatic wall).
Q - Heat flux function \f$ q_0(t) \f$ [W/m^2]. Optional. Default:
\f$ q_0(t) = 0.0 \f$.
velocity - Wall velocity function \f$ v_0(t) \f$ [m/s].
Default: \f$ v_0(t) = 0.0 \f$.
kinetics - Surface reaction mechanisms for the left-facing and
right-facing surface, respectively. These must be instances of
class Kinetics, or of a class derived from Kinetics, such as
Interface. If chemistry occurs on only one side, enter 'None'
for the non-reactive side.
"""
typ = 0
self.__wall_id = _cantera.wall_new(typ)
global _wallcount
if name == '':
_nm = 'Wall_'+`_wallcount`
else:
_nm = name
_wallcount += 1
if left and right:
self.install(left, right)
else:
raise CanteraError('both left and right reactors must be specified.')
self.setArea(A)
self.setExpansionRateCoeff(K)
self.setVelocity(velocity)
self.setHeatTransferCoeff(U)
self.setHeatFlux(Q)
self.setKinetics(kinetics[0],kinetics[1])
self._paramid = []
def netProductionRates(self, phase=None):
w = _cantera.kin_getarray(self.ckin, 70)
if phase:
kp = phase.thermophase()
if self._phnum.has_key(kp):
n = self._phnum[kp]
return w[self._end[n]:self._end[n + 1]]
else:
raise CanteraError('unknown phase')
else:
return w
def __init__(self, kintype=-1, thrm=0, xml_phase=None, id=None, phases=[]):
"""
Build a kinetics manager from an XML specification.
:param kintype:
Integer specifying the type of kinetics manager to create.
:param root:
Root of a CTML tree
:param id:
id of the 'kinetics' node within the tree that contains the
specification of the parameters.
"""
np = len(phases)
self._sp = []
self._phnum = {}
# p0 through p4 are the integer indices of the phase objects
# corresponding to the input sequence of phases
self._end = [0]
p0 = phases[0].thermophase()
p1 = -1
p2 = -1
p3 = -1
p4 = -1
if np >= 2:
p1 = phases[1].thermophase()
if np >= 3:
p2 = phases[2].thermophase()
if np >= 4:
p3 = phases[3].thermophase()
if np >= 5:
p4 = phases[4].thermophase()
if np >= 6:
raise CanteraError("a maximum of 4 neighbor phases allowed")
self.ckin = _cantera.KineticsFromXML(xml_phase, p0, p1, p2, p3, p4)
self._np = self.nPhases()
for nn in range(self._np):
p = self.phase(nn)
self._phnum[p.thermophase()] = nn
self._end.append(self._end[-1] + p.nSpecies())
for k in range(p.nSpecies()):
self._sp.append(p.speciesName(k))
def __init__(self,
left,
right,
name='',
A=1.0,
K=0.0,
U=0.0,
Q=None,
velocity=None,
kinetics=[None, None]):
"""
:param left:
Reactor or reservoir on the left. Required.
:param right:
Reactor or reservoir on the right. Required.
:param name:
Name string. If omitted, the name is ``'Wall_n'``, where ``'n'``
is an integer assigned in the order walls are created.
:param A:
Wall area [m^2]. Defaults to 1.0 m^2.
:param K:
Wall expansion rate parameter [m/s/Pa]. Defaults to 0.0.
:param U:
Overall heat transfer coefficient [W/m^2]. Defaults to 0.0
(adiabatic wall).
:param Q:
Heat flux function :math:`q_0(t)` [W/m^2]. Optional. Default:
:math:`q_0(t) = 0.0`.
:param velocity:
Wall velocity function :math:`v_0(t)` [m/s].
Default: :math:`v_0(t) = 0.0`.
:param kinetics:
Surface reaction mechanisms for the left-facing and right-facing
surface, respectively. These must be instances of class Kinetics,
or of a class derived from Kinetics, such as Interface. If
chemistry occurs on only one side, enter ``None`` for the
non-reactive side.
"""
typ = 0
self.__wall_id = _cantera.wall_new(typ)
global _wallcount
if name == '':
_nm = 'Wall_' + ` _wallcount `
else:
_nm = name
_wallcount += 1
if left and right:
self.install(left, right)
else:
raise CanteraError(
'both left and right reactors must be specified.')
self.setArea(A)
self.setExpansionRateCoeff(K)
self.setVelocity(velocity)
self.setHeatTransferCoeff(U)
self.setHeatFlux(Q)
self.setKinetics(kinetics[0], kinetics[1])
self._paramid = []
