Modelization of the Low-Mach Navier Stokes equations in unstructured meshes

Chiva Segura, Jorge; Ventosa, Jordi; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David

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Chiva Segura, Jorge

Ventosa, Jordi

Lehmkuhl Barba, Oriol

Pérez Segarra, Carlos David

Document typeConference lecture

Date issued2011

Rights accessRestricted access - publisher's policy

Abstract

In this paper a Low-Mach number approximation of the Navier Stokes Equations in unstructured meshes is presented. Both staggered and collocated formulations for unstructured grids will be used.The aim is to develop a numerical algorithm suitable for describing flows which present large variations of the density field, but that the speed of the flow is low, so that the Mach number is small and if a compressible formulation was to be used would cause strong limitations to the time step. The test case for verification will be a differentially heated cavity with a large temperature gradient. The results will be compared against benchmark data.

CitationChiva, J. [et al.]. Modelization of the Low-Mach Navier Stokes equations in unstructured meshes. A: International Conference on Computational Heat and Mass Transfer. "ICCHMT 2011. 7th International Conference on Computational Heat and Mass Transfer 7th International Conference on Computational Heat and Mass Transfer". Istanbul: 2011, p. 1-8.

URIhttp://hdl.handle.net/2117/15558

Publisher versionhttps://www.cttc.upc.edu/tmp/showuplqgFCxS.pdf

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