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Article #875Re: Comparison between FEM and FDM/CVM for fluid flow modeling
From: W. Donald Rolph
Date: Tue, 15 Dec 1992 14:22
Date: Tue, 15 Dec 1992 14:22
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There is, however, no requirement that either FVM or FEA to either be conservative or nonconservative (Oden has some nice mathematics describing requirments for conservation in FEA fluid mechanics). The issue remains the shape or approximation functions. Chooses identical shape funcitons and FVM and FEA are identical. Choose bad ones, and both fail. Fundamentally all numerical procedures for PDE approximation have a basic underlying comonality: minimizing error in the approxiamtion funcitons with respect to the actual solution. We realy need to get away from these parochial battles over differences in what are in fact identical procedures. -- Regards. Don Rolph a722756@pan.mc.ti.com WD3 MS10-13 (508)-699-1263
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Newsgroups: sci.math.num-analysis Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!agate!usenet.ins.cwru.edu!gatech!swrinde!cs.utexas.edu!csc.ti.com!tilde.csc.ti.com!pan.mc.ti.com!a722756 From: a722756@roper.mc.ti.com (W. Donald Rolph) Subject: Re: Comparison between FEM and FDM/CVM for fluid flow modeling Message-ID: <1992Dec15.092213@roper.mc.ti.com> Originator: a722756@roper.mc.ti.com Sender: usenet@pan.mc.ti.com (USENET News System) Organization: Texas Instruments / Attleboro Mass / USA References: <1992Dec14.132457.24381@dutrun2.tudelft.nl> <1992Dec14.231625.11012@fys.ruu.nl> Date: Tue, 15 Dec 1992 14:22:13 GMT Lines: 17