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Fast Whole-Engine Stirling AnalysisAn experimentally validated approach is described for fast axisymmetric Stirling engine simulations. These simulations include the entire displacer interior and demonstrate it is possible to model a complete engine cycle in less than an hour. The focus of this effort was to demonstrate it is possible to produce useful Stirling engine performance results in a time-frame short enough to impact design decisions. The combination of utilizing the latest 64-bit Opteron computer processors, fiber-optical Myrinet communications, dynamic meshing, and across zone partitioning has enabled solution times at least 240 times faster than previous attempts at simulating the axisymmetric Stirling engine. A comparison of the multidimensional results, calibrated one-dimensional results, and known experimental results is shown. This preliminary comparison demonstrates that axisymmetric simulations can be very accurate, but more work remains to improve the simulations through such means as modifying the thermal equilibrium regenerator models, adding fluid-structure interactions, including radiation effects, and incorporating mechanodynamics.
Document ID
Document Type
Technical Memorandum (TM)
Dyson, Rodger W.
(NASA Glenn Research Center Cleveland, OH, United States)
Wilson, Scott D.
(Sest, Inc. Middleburgh Heights, OH, United States)
Tew, Roy C.
(NASA Glenn Research Center Cleveland, OH, United States)
Demko, Rikako
(Sest, Inc. Middleburgh Heights, OH, United States)
Date Acquired
September 7, 2013
Publication Date
October 1, 2005
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA Paper 2005-5558
Meeting Information
Third International Energy Conversion Engineering Conference(San Francisco, CA)
Funding Number(s)
WBS: WBS 22-972-30-01
Distribution Limits
Work of the US Gov. Public Use Permitted.
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