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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
Acquisition Source
Glenn Research Center
Document Type
Reprint (Version printed in journal)
Dyson, Rodger W.
(NASA Glenn Research Center Cleveland, OH, United States)
Wilson, Scott D.
(NASA Glenn Research Center Cleveland, OH, United States)
Tew, Roy C.
(NASA Glenn Research Center Cleveland, OH, United States)
Demko, Rikako
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2007
Subject Category
Mechanical Engineering
Funding Number(s)
WBS: WBS 138494.04.01.01
Distribution Limits
Public Use Permitted.
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