An immersed boundary method for general flow applications

Jack R. Edwards, Jung Il Choi, Santanu Ghosh, Daniel A. Gieseking, Jeffrey D. Eischen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

The development of a direct-forcing immersed-boundary method for general flow applications is outlined in this paper. A cell-classification procedure based on a signed distance to the nearest surface is used to separate the computational domain into cells outside the immersed object ('field cells'), cells outside but adjacent to the immersed object ('band cells'), and cells within the immersed object ('interior cells'). Interpolation methods based on laminar / turbulent boundary layer theory are used to prescribe the flow properties within the 'band cells'. The method utilizes a decomposition of the velocity field near embedded surfaces into normal and tangential components, with the latter handled using power-law interpolations to mimic the energizing effects of turbulent boundary layers. A procedure for directly embedding sequences of stereo-lithography files as immersed objects in the computational is described, as are extensions of the methodology to compressible, turbulent flows. Described applications include human motion, moving aerodynamic surfaces, and shock / boundary layer interaction flow control.

Original languageEnglish
Title of host publicationASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010
Pages2461-2469
Number of pages9
EditionPARTS A, B AND C
DOIs
Publication statusPublished - 2010 Dec 1
EventASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels - Montreal, QC, Canada
Duration: 2010 Aug 12010 Aug 5

Publication series

NameAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
NumberPARTS A, B AND C
Volume1
ISSN (Print)0888-8116

Other

OtherASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
CountryCanada
CityMontreal, QC
Period10/8/110/8/5

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All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Edwards, J. R., Choi, J. I., Ghosh, S., Gieseking, D. A., & Eischen, J. D. (2010). An immersed boundary method for general flow applications. In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010 (PARTS A, B AND C ed., pp. 2461-2469). (American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM; Vol. 1, No. PARTS A, B AND C). https://doi.org/10.1115/FEDSM-ICNMM2010-31097