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Progress in Unsteady Turbopump Flow Simulations Using Overset Grid SystemsThis viewgraph presentation provides information on unsteady flow simulations for the Second Generation RLV (Reusable Launch Vehicle) baseline turbopump. Three impeller rotations were simulated by using a 34.3 million grid points model. MPI/OpenMP hybrid parallelism and MLP shared memory parallelism has been implemented and benchmarked in INS3D, an incompressible Navier-Stokes solver. For RLV turbopump simulations a speed up of more than 30 times has been obtained. Moving boundary capability is obtained by using the DCF module. Scripting capability from CAD geometry to solution is developed. Unsteady flow simulations for advanced consortium impeller/diffuser by using a 39 million grid points model are currently underway. 1.2 impeller rotations are completed. The fluid/structure coupling is initiated.
Document ID
20030015407
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Kiris, Cetin C. (NASA Ames Research Center Moffett Field, CA United States)
Chan, William (NASA Ames Research Center Moffett Field, CA United States)
Kwak, Dochan (NASA Ames Research Center Moffett Field, CA United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2002
Subject Category
Fluid Mechanics And Thermodynamics
Meeting Information
Meeting: NASA MSFC 2002 Workshop
Location: Huntsville, AL
Country: United States
Start Date: November 19, 2002
End Date: November 21, 2002
Sponsors: NASA Marshall Space Flight Center
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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