On the stability of bilinear-constant velocity-pressure finite elements |
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| Authors: | J. M. Boland R. A. Nicolaides |
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| Affiliation: | (1) Carnegie-Mellon University, 15213 Pittsburgh, PA, USA;(2) University of Connecticut, Storrs, USA |
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| Abstract: | Summary An analysis of the Babu ka stability of bilinear/constant finite element pairs for viscous flow calculations is given. An unstable mode not of the checkerboard type is given for which the stability constant turns out to beO(h). Thus, the indicated spaces are not stable in general for numerical calculation.Work supported by U.S. Air Force Office of Scientific Research under grant AF-AFOSR-82-0213 |
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| Keywords: | AMS(MOS): 65N30 CR: 5.17 |
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