CFD simulation of hydraulic equipments involving moving boundary components is really challenging due to difficulty in maintaining a good quality mesh essential for obtaining accurate numerical solutions. To deal with these problems, commercial codes such as Ansys CFX provide the option of mesh morphing which must be used in conjunction with pre-defined multiple grid configurations to account for changing flow domain. In contrast to this approach, immersed boundary method (IBM) provides an attractive alternative in which the complex moving surface is immersed in a fixed Cartesian (or polyhedral) grid. We have developed an immersed boundary simulation tool-kit for moving boundary problems based on OpenFOAM. It requires the user to provide the definition of the immersed surfaces in STL (stereolithography) format, type of flow (internal/external) and motion (stationary, pre-defined or flow-induced) of the surface. Numerical simulations have been performed for selected test cases to assess the computational performance of the immersed boundary too-kit. Numerical results of flow over stationary as well as vibrating cylinders agree very well with available experimental and numerical results, and show that the immersed boundary simulations accurately capture the vortex shedding frequency and vortical structures for moving boundary problems.
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ASME 2015 International Mechanical Engineering Congress and Exposition
November 13–19, 2015
Houston, Texas, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5747-2
PROCEEDINGS PAPER
Immersed Boundary Method for CFD Analysis of Moving Boundary Problems in OpenFOAM Available to Purchase
Krishna M. Singh,
Krishna M. Singh
Indian Institute of Technology Roorkee, Roorkee, India
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Norihiko Nonaka,
Norihiko Nonaka
Hitachi, Ltd., Research & Development Group, Hitachinaka, Japan
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U. Oh
U. Oh
Hitachi, Ltd., Research & Development Group, Hitachinaka, Japan
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Krishna M. Singh
Indian Institute of Technology Roorkee, Roorkee, India
Norihiko Nonaka
Hitachi, Ltd., Research & Development Group, Hitachinaka, Japan
U. Oh
Hitachi, Ltd., Research & Development Group, Hitachinaka, Japan
Paper No:
IMECE2015-53286, V07BT09A040; 10 pages
Published Online:
March 7, 2016
Citation
Singh, KM, Nonaka, N, & Oh, U. "Immersed Boundary Method for CFD Analysis of Moving Boundary Problems in OpenFOAM." Proceedings of the ASME 2015 International Mechanical Engineering Congress and Exposition. Volume 7B: Fluids Engineering Systems and Technologies. Houston, Texas, USA. November 13–19, 2015. V07BT09A040. ASME. https://doi.org/10.1115/IMECE2015-53286
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