Evaluation of finite element formulations for transient conduction forced-convection analysisConventional versus upwind convective finite elements, and lumped versus consistent formulations for practical conduction/forced convection analysis are evaluated on the basis of numerical studies, with finite element and finite difference lumped-parameter temperatures compared to closed-form analytical solutions for convection problems. Attention is given to two practical combined conduction and forced convection applications, stressing that the finite element method, showing superior accuracy, is competitive with the finite difference lumped-parameter method. Also considered are the computational time savings offered by the zero capacitance nodes procedure and comparative finite element and finite difference lumped-parameter computer times. The present study has reference to the design of actively cooled engine and airframe structures for hypersonic flight.
Document ID
19800044114
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Thornton, E. A. (Old Dominion University Norfolk, Va., United States)
Wieting, A. R. (NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1979
Subject Category
Fluid Mechanics And Heat Transfer
Meeting Information
Meeting: National Conference on Numerical Methods in Heat Transfer