A collocated finite volume embedding method for simulation of flow past stationary and moving body

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A simple and conservative numerical scheme is introduced in this paper to simulate unsteady flow around stationary and moving body. Based on the embedding method (immersed boundary (IB) + volume of fluid (VOF)) implemented in the finite-volume framework, flow past the arbitrarily complex geometry can be readily computed on any existing mesh system. Flow variables stored at cell centers, including those residing within the immersed body, are computed where the induced effect on the flow due to the immersed body is realised via a simple acceleration term (forcing function) derived based on the VOF value. In the current work, an identical VOF value is used for all momentum equations, in contrast to that of the pre-existing method, whereby numerical interpolation is required. The method is verified with a number of flow cases, including flow in a 2D square cavity, flow past a stationary and oscillating cylinder and flow induced by a flapping ellipse in an enclosure.

Original languageEnglish
Pages (from-to)347-357
Number of pages11
JournalComputers and Fluids
Volume38
Issue number2
DOIs
Publication statusPublished - 01 Feb 2009

Fingerprint

Finite volume method
Fluids
Oscillating cylinders
Oscillating flow
Unsteady flow
Enclosures
Numerical methods
Interpolation
Momentum
Geometry

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Engineering(all)

Cite this

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A collocated finite volume embedding method for simulation of flow past stationary and moving body. / Ng, Khai Ching.

In: Computers and Fluids, Vol. 38, No. 2, 01.02.2009, p. 347-357.

Research output: Contribution to journalArticle

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