diff --git a/dart/api/core.py b/dart/api/core.py
index 332baa13de382e45700a1b5915a837d42e291202..63af776f8276ad5db87ce8b4cef8c6ebdd0dfd84 100644
--- a/dart/api/core.py
+++ b/dart/api/core.py
@@ -71,27 +71,20 @@ def init_dart(cfg, scenario='aerodynamic', task='analysis', viscous=False):
raise RuntimeError('Problem dimension should be 2 or 3, but ' + cfg['Dim'] + ' was given!\n')
else:
_dim = cfg['Dim']
- # aoa and aos
- if 'AoA' in cfg:
- alpha = cfg['AoA'] * math.pi / 180
- else:
- alpha = 0
+ # angles of attack and side slip, and freestream Mach number
+ alpha = cfg.get('AoA', 0.) * math.pi / 180
+ beta = cfg.get('AoS', 0.) * math.pi / 180
+ minf = cfg.get('M_inf', 0.)
if _dim == 2:
- if 'AoS' in cfg and cfg['AoS'] != 0:
+ if beta != 0:
raise RuntimeError('Angle of sideslip (AoS) should be zero for 2D problems!\n')
- else:
- beta = 0
if 'Symmetry' in cfg:
raise RuntimeError('Symmetry boundary condition cannot be used for 2D problems!\n')
else:
- if 'AoS' in cfg:
- if cfg['AoS'] != 0 and 'Symmetry' in cfg:
- raise RuntimeError('Symmetry boundary condition cannot be used with nonzero angle of sideslip (AoS)!\n')
- beta = cfg['AoS'] * math.pi / 180
- else:
- beta = 0
+ if beta != 0 and 'Symmetry' in cfg:
+ raise RuntimeError('Symmetry boundary condition cannot be used with nonzero angle of sideslip (AoS)!\n')
# save format
- if cfg['Format'] == 'vtk':
+ if cfg.get('Format', 'vtk') == 'vtk':
try:
import tboxVtk
Writer = tboxVtk.VtkExport
@@ -102,16 +95,9 @@ def init_dart(cfg, scenario='aerodynamic', task='analysis', viscous=False):
else:
Writer = tbox.GmshExport
print('Results will be saved in gmsh format.\n')
- # number of threads
- if 'Threads' in cfg:
- nthrd = cfg['Threads']
- else:
- nthrd = 1
- # verbosity
- if 'Verb' in cfg:
- verb = cfg['Verb']
- else:
- verb = 1
+ # number of threads and verbosity
+ nthrd = cfg.get('Threads', 1)
+ verb = cfg.get('Verb', 1)
# scenario and task type
if scenario != 'aerodynamic' and scenario != 'aerostructural':
raise RuntimeError('Scenario should be aerodynamic or aerostructural, but "' + scenario + '" was given!\n')
@@ -124,7 +110,7 @@ def init_dart(cfg, scenario='aerodynamic', task='analysis', viscous=False):
_qinf = None
# Mesh creation
- pars = {} if 'Pars' not in cfg else cfg['Pars']
+ pars = cfg.get('Pars', {})
_msh = gmsh.MeshLoader(cfg['File']).execute(**pars)
# add the wake
if _dim == 2:
@@ -166,7 +152,7 @@ def init_dart(cfg, scenario='aerodynamic', task='analysis', viscous=False):
else:
if 'Fuselage' in cfg:
_mrf.addFixed(cfg['Fuselage'])
- if 'Symmetry' in cfg:
+ if 'Symmetry' in cfg:
_mrf.setSymmetry(cfg['Symmetry'], 1)
for i in range(len(cfg['Wings'])):
if i == 0:
@@ -179,9 +165,9 @@ def init_dart(cfg, scenario='aerodynamic', task='analysis', viscous=False):
_mrf = None
# Problem creation
- _pbl = dart.Problem(_msh, _dim, alpha, beta, cfg['M_inf'], cfg['S_ref'], cfg['c_ref'], cfg['x_ref'], cfg['y_ref'], cfg['z_ref'])
+ _pbl = dart.Problem(_msh, _dim, alpha, beta, minf, cfg['S_ref'], cfg['c_ref'], cfg['x_ref'], cfg['y_ref'], cfg['z_ref'])
# add the field
- _pbl.set(dart.Fluid(_msh, cfg['Fluid'], cfg['M_inf'], _dim, alpha, beta))
+ _pbl.set(dart.Fluid(_msh, cfg['Fluid'], minf, _dim, alpha, beta))
# add the initial condition
_pbl.set(dart.Initial(_msh, cfg['Fluid'], _dim, alpha, beta))
# add farfield boundary conditions (Neumann only, a DOF will be pinned automatically)
@@ -236,10 +222,7 @@ def init_dart(cfg, scenario='aerodynamic', task='analysis', viscous=False):
elif cfg['LSolver'] == 'MUMPS':
linsol = tbox.Mumps()
elif cfg['LSolver'] == 'GMRES':
- gfil = cfg['G_fill'] if 'G_fill' in cfg else 2
- grst = cfg['G_restart'] if 'G_restart' in cfg else 50
- gtol = cfg['G_tol'] if 'G_tol' in cfg else 1e-5
- linsol = tbox.Gmres(gfil, 1e-6, grst, gtol, 200)
+ linsol = tbox.Gmres(cfg.get('G_fill', 2), 1e-6, cfg.get('G_restart', 50), cfg.get('G_tol', 1e-5), 200)
else:
raise RuntimeError('Available linear solvers: PARDISO, MUMPS or GMRES, but ' + cfg['LSolver'] + ' was given!\n')
# initialize the nonlinear (outer) solver
diff --git a/dart/api/cupydo.py b/dart/api/cupydo.py
index 07646e9d4599b3c78565bb52c3307ef8d1c42e99..a50922c27c07a4f62923b9d3c290c80413806549 100644
--- a/dart/api/cupydo.py
+++ b/dart/api/cupydo.py
@@ -40,10 +40,7 @@ class Dart(FluidSolver):
self.nodalInitPosX, self.nodalInitPosY, self.nodalInitPosZ = self.getNodalInitialPositions()
# init save frequency (fsi)
- if 'SaveFreq' in params:
- self.saveFreq = params['SaveFreq']
- else:
- self.saveFreq = sys.maxsize
+ self.saveFreq = params.get('SaveFreq', sys.maxsize)
# generic init
FluidSolver.__init__(self)
diff --git a/dart/api/internal/polar.py b/dart/api/internal/polar.py
index 1922425785526f6b1308f9f582f01cfd271f8638..198b57ea6c265e7036defadc64fa372350c2c7ab 100644
--- a/dart/api/internal/polar.py
+++ b/dart/api/internal/polar.py
@@ -68,14 +68,10 @@ class Polar:
_dart = init_dart(p, scenario='aerodynamic', task='analysis')
self.dim, self.msh, self.wrt, self.pbl, self.bnd, self.sol = (_dart.get(key) for key in ['dim', 'msh', 'wrt', 'pbl', 'bnd', 'sol'])
# save some parameters for later use
- self.format = p['Format']
- try:
- self.slice = p['Slice']
- self.tag = p['TagId']
- except:
- self.slice = None
- self.tag = None
- self.mach = p['M_inf']
+ self.format = p.get('Format', 'vtk')
+ self.slice = p.get('Slice')
+ self.tag = p.get('TagId')
+ self.mach = self.pbl.M_inf
self.alphas = tU.myrange(p['AoA_begin'], p['AoA_end'], p['AoA_step'])
def run(self):
diff --git a/dart/api/internal/trim.py b/dart/api/internal/trim.py
index 6fbe7e7bb353264f40ea69177c95fcf8f2f99d76..31c1028047cad01c86212c0451384db2ad901ea6 100644
--- a/dart/api/internal/trim.py
+++ b/dart/api/internal/trim.py
@@ -49,9 +49,9 @@ class Trim:
clTgt : float
target lift coefficient
alpha : float
- initial angle of attack
+ current angle of attack
dCl : float
- initial (estimated) slope of lift curve
+ current slope of lift curve
"""
def __init__(self, p):
"""Setup and configure
@@ -67,16 +67,12 @@ class Trim:
_dart = init_dart(p, scenario='aerodynamic', task='analysis')
self.dim, self.msh, self.wrt, self.pbl, self.bnd, self.sol = (_dart.get(key) for key in ['dim', 'msh', 'wrt', 'pbl', 'bnd', 'sol'])
# save some parameters for later use
- self.format = p['Format']
- try:
- self.slice = p['Slice']
- self.tag = p['TagId']
- except:
- self.slice = None
- self.tag = None
- self.mach = p['M_inf']
+ self.format = p.get('Format', 'vtk')
+ self.slice = p.get('Slice')
+ self.tag = p.get('TagId')
+ self.mach = self.pbl.M_inf
+ self.alpha = self.pbl.alpha
self.clTgt = p['CL']
- self.alpha = p['AoA']*math.pi/180
self.dCl = p['dCL']
def run(self):