A comparison of two Trefftz-type methods: The ultraweak variational formulation and the least-squares method, for solving shortwave 2-D Helmholtz problems

International Journal for Numerical Methods in Engineering

Volumn 71, Issue 4, 2007, Pages 406-432

  Gamallo, P ^a   Astley, R J ^b  

^a UNIVERSITY OF VIGO   (Spain)

^b UNIVERSITY OF SOUTHAMPTON   (United Kingdom)

Author keywords

Helmholtz equation; Least squares method; Plane wave basis; Shortwave problems; Trefftz methods; Ultra weak variational formulation

Indexed keywords

ACOUSTIC WAVE PROPAGATION; BOUNDARY CONDITIONS; HELMHOLTZ EQUATION; LEAST SQUARES APPROXIMATIONS; PARTIAL DIFFERENTIAL EQUATIONS; PROBLEM SOLVING;

LEAST-SQUARES METHOD; PLANE WAVE BASIS; SHORTWAVE PROBLEMS; TREFFTZ METHODS; ULTRA-WEAK VARIATIONAL FORMULATION;

ACOUSTIC WAVES;

ACOUSTIC WAVE PROPAGATION; ACOUSTIC WAVES; BOUNDARY CONDITIONS; HELMHOLTZ EQUATION; LEAST SQUARES APPROXIMATIONS; PARTIAL DIFFERENTIAL EQUATIONS; PROBLEM SOLVING;

EID: 34547106039     PISSN: 00295981     EISSN: 10970207     Source Type: Journal    
DOI: 10.1002/nme.1948     Document Type: Article

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