MSU TURBO
MSU TURBO is a graphical user interface for a set
of codes called GUMBO and TURBO used for analysis
of unsteady flows in turbomachinery. MSU TURBO is
used to define input parameters, and includes online
documentation. The codes are being developed at the
Computational Simulation and Design Center at the
Engineering Research Center at Mississippi State University
(MSU). Development of the codes has been supported
by NASA Glenn Research Center, the US Army Research
Office, GE Aircraft Engines, and Honeywell Engines
Systems and Service.
MSU TURBO home page: http://www.erc.msstate.edu/simcenter/docs/msu_turbo/
For more information about MSU TURBO, contact Dr.
Michael D. Hathaway,
Michael.D.Hathaway@grc.nasa.gov
GUMBO
GUMBO (Graphical Unstructured MultiBlock Omnitool),
is a graphical preprocessor for defining grid and
boundary condition information needed by TURBO. GUMBOis
used to define grid block
connectivity information, adjust the block sizes for
parallel execution, and set boundary
conditions at the block boundaries and interfaces.
Features of GUMBO
- Built-in help, online documentation and tutorial
- Data input and output
- Read / Write boundary condition information
- Read / Write grid block connectivity information
- Graphical boundary condition specification and
diagnostics
- Graphical specification of boundary conditions
from menu of boundary conditions
- Diagnostic detection of regions with unspecified
or overlapping boundary conditions
- Automatic/Manual grid block connectivity
- Grid repartitioning for parallel execution
- Grid manipulation including smoothing, rescaling,
translation, rotation, resizing and reordering
TURBO
TURBO is a scalable, parallel multiblock flow solver
for unsteady flows in turbomachinery. It solves the
unsteady Reynolds-averaged Navier-Stokes equations
with a decoupled k - epsilon
turbulence model. The code is being developed by Dr.
Jenping Chen at Mississippi State University.
TURBO is parallelized with the use of MPI for data
communication over multiple processors. The parallel
code supports arbitrary grid blocking which is useful
in modeling complex geometries.
Features of TURBO
- Finite-volume discretization
- High-order fluxes using Roe's scheme
- Real & perfect gas models
- Implicit time marching using Newton & Gauss-Seidel
relaxation
- Structured multiblock grids with arbitrary block
connectivity
- Full annulus calculations (exact blade count)
- Partial annulus using phase lagged boundary conditions
(single passage per blade row)
- Partial annulus using reduced blade counts
- Has been run on SGI, HP, CRAY, and Linux cluster
computers
Applications of TURBO
- Axial and centrifugal compressors and turbines
- Unsteady blade row interaction
- Wake-blade interaction (unsteady inlet/exit boundary
conditions)
- Flutter simulations
- Rotating stall simulations
Examples
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Axial velocity contours near the tip of stage
35 without casing injection
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Axial velocity contours near the tip of stage
35 with casing injection for stall control
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CC-3 centrifugal compressor and wedge diffuser
with casing injection for stall control
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Flow details in the CC-3 centrifugal compressor
and wedge diffuser
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