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Krista Nerinckx

Ghent University, Belgium

Mach-uniformity through the coupled pressure and temperature correction algorithm

Abstract: We present a new type of algorithm: the coupled pressure and temperature correction algorithm. It finds its place in between the fully coupled and the fully segregated approach, and is constructed such that Mach-uniform accuracy and efficiency are obtained. The essential idea is the separation of the convective and the acoustic/thermodynamic phenomena: a convective predictor is followed by an acoustic/thermodynamic corrector. For a general case, the corrector consists of a coupled solution of the energy and the continuity equations for both pressure and temperature corrections. For the special case of an adiabatic perfect gas flow, the algorithm reduces to a fully segregated method, with a pressure-correction equation based on the energy equation. Various test cases are considered, which confirm that Mach-uniformity is obtained.
Zeit: Freitag, 10. Dezember 2004, 14.15 Uhr (Kaffee/Tee um 15.30)
Ort: FU Berlin, Arnimallee 2-6, Raum 032 im EG

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