|February 28, 2013, 02:00||
Rotating wall velocity boundary condition for axisymmetric flow problem
Join Date: Jan 2013
Posts: 68Rep Power: 4
I am trying to solve flow between two rotating cylinders having a rotating
circular ring in the annulus. The cylinder walls and the ring are rotating
with different angular velocities. I have taken a wedge shape domain
with front and back faces as "periodic walls". This type of flow has
non-zero swirl, radial and axial velocities, which do not vary with azimuthal angle.
The walls are kept as some temperatures, say 300 K.
Hence I wanted to know whether we can apply rotating wall velocity
conditions at different walls, in non-rotating frame of reference, in SU2 ?
Also, I wanted to know whether we can have single cell in the azimuthal
direction ? (between periodic front and back walls)
The schematic of the problem is attached with the post.
|March 24, 2013, 00:45||
Join Date: Jan 2013
Location: Stanford, CA
Posts: 304Rep Power: 5
Thanks you for your interest in SU2. The current implementation v2.0.2 requires a hub, and at least 3 cells in the azimuthal direction.
It is very easy to impose a different velocity to each surface with a small modification of the subroutine
void CNSSolution::BC_NS_Wall(CGeometry *geometry, CSolution **solution_container, CNumerics *solver, CConfig *config, unsigned short val_marker)
void CEulerSolution::BC_Euler_Wall(CGeometry *geometry, CSolution **solution_container, CNumerics *solver, CConfig *config, unsigned short val_marker)
for inviscid flows.
both subroutines are in solution_direct_mean.cpp
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