Developing an immersed boundary method for compressible flow
PAMM, vol. 23
Abstract
Abstract Development of a 3D sharp interface ghost node immersed boundary method (IBM) within a fluid solver based on the compressible Navier–Stokes equations is underway. The objective of the IBM is to accurately apply boundary conditions at fluid–solid interfaces. The Navier–Stokes solver is currently being verified using various test cases, including the classic cylinder in cross flow. As part of this verification process, particular attention was given to investigating the effects of different lateral boundary conditions. The results demonstrate that extrapolation boundary conditions exhibit better agreement with the literature compared to symmetry conditions, in cases with relatively narrow domains. These findings highlight the potential benefits of extrapolation boundary conditions in reducing confinement effects and removing nonphysical waves in external flow problems.
Authors 4
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Frederik Kristoffersen corresponding
Norwegian University of Science and Technology
Affiliation as printed
Department of Energy and Process Engineering Norwegian University of Science and Technology (NTNU) Trondheim Norway
Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
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Affiliation as printed
SINTEF Industry Trondheim Norway
SINTEF Industry, Trondheim, Norway
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Wolfgang Schröder Aachen Institute of Aerodynamics Rheinisch‐Westfälische Technische Hochschule Aachen Germany
Affiliation as printed
Institute of Aerodynamics Rheinisch‐Westfälische Technische Hochschule Aachen Germany
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Norwegian University of Science and Technology
Affiliation as printed
Department of Energy and Process Engineering Norwegian University of Science and Technology (NTNU) Trondheim Norway
Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
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