This interface creates flowCart multi-grid file , input parameters control file and runs the solver.
mgPrep is the mesh coarsening module which creates coarse grids from an initial input grid for flowCart's multigrid convergence accelleration. Ordering of the input meshes is preserved and is propagated to coarser meshes in the hierarchy.
Mesh file is the flowCart
input mesh file which could be either one of cart3D mesher output file,
reordered mesh file and multi grid mesh file.
Mesh Info file is the mesh information file written by cart3D mesher.
Angle of attack ( alpha ) in degrees
Side slip angle ( Beta ) in degrees
Free Stream Density ( Rho_inf )
Free Stream Sound Speed ( a_inf )
Solver Controls - Runge-Kutta scheme:
Number of stages in the RK
Stage coefficient for each stage
Gradient Evaluation flag for each stage:
0 - Do not evaluate
1 - Evaluate
Solver Controls - Others:
Cut cell boundary condition type
Number of Multi-Grid levels
Multi grid cycle type
Number of pre smoothing levels in multigrid
Number of post smoothing levels in multigrid
Specify boundary condtions
for low and high in X,Y,Z directions:
Specify convergence hoistory
information update controls:
Force information update cycle
History file update cycle
Specify Number of SubDomains to partition into
and the Type of partitioning:
1 = SpaceFillingCurve
Write the flowCart parameters to the selected flowCart input control file.
Select the flowCart input control file.
Slect the maximum number of cycles.
Restart computation: This is to restart
the computation from the last run. flowCart creates check_$cycles file
for every run. Create a soft link to the fowCart output check file
like below and turn on Restart button and run solver.
ln -s Restart.file check_0010
Running in Parallel
flowCart parallelization is done using the OpenMP
standard. Thus, although it uses explicit message passing, it is formally
a shared memory model. So, it can run only on shared memory parallel machines.
To run in parallel set MP_SET_NUMTHREADS environment variable to the desired number of processors. For ex, to run flowCart in a 10 CPU machine:
setenv MP_SET_NUMTHREADS 10
flowCart output tri file (filename.triq)
with nodal pressure data can be converted to domain file by running c3dtri2df
$ICEM_ACN/icemcfd/output-interfaces/c3dtri2df -i filename.triq -o filename.dom -triq
This domain file can be imported in to ICEM-Visual3 post-processor as surface domain file.
clic is a Component based force and moment module developed as a post-processor and data-extractor for Cart3D. Using clic, you can extract Cp cuts on any component or group of components in your configuration, you can compute LDM (lift, drag, moment) for components, component groups or configurations, and extract the usual bevy of point-moments, line-moments ("hinge, moments") etc..
This computes the motion of a general 6-DOF model for an unconstrained rigid body under the influence of aerodynamic forces, gravity, and external applied loads.