CFD simulation of arbitrary motion in two-dimensional spacetime using cut-cell meshes

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

6 Citations (Scopus)

Abstract

Arbitrary unsteady motion demands a method that allows connectivity to change in time, whilst preserving accuracy and conservation. To achieve this, a mesh can be constructed in time as well as space, and this allows total flexibility; there are no restrictions on the type of motions that may be included, and the problem of mesh motion is replaced by mesh generation. Such a ‘space-time’ solver has been developed by the authors, and validated previously for a pitching aerofoil case. To extend this method, and make it applicable to entirely general problems, a cartesian cut-cell method has been developed, and is demonstrated here for creating space-time meshes in three dimensions, allowing arbitrary unsteady motion in two dimensions. This is demonstrated for cases involving aerofoils flying through a mesh and past obstacles in close proximity, which is accomplished in a fully conservative manner and to a level of accuracy consistent with what any equivalent steady simulation would be able to achieve.
Translated title of the contributionCFD simulation of arbitrary motion in two-dimensional spacetime using cut-cell meshes
Original languageEnglish
Title of host publication28th AIAA Applied Aerodynamics Conference, 28 June - 1 July 2010
Number of pages11
Publication statusPublished - Jun 2010

Bibliographical note

Name and Venue of Event: Chicago, Ill, USA
Conference Organiser: AIAA
Other identifier: AIAA-2010-4696

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