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Fast and Accurate Simulation of Strongly Coupled Fluid-Structure Interaction Using a Direct Forcing Immersed Boundary Method
Conference proceeding

Fast and Accurate Simulation of Strongly Coupled Fluid-Structure Interaction Using a Direct Forcing Immersed Boundary Method

Jianming Yang and Frederick Stern
ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, Vol.1(D), pp.3653-3662
ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, Hamamatsu, Japan, Jul. 24 - 29, 2011
01/01/2011
DOI: 10.1115/AJK2011-20002

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Abstract

In this paper, a direct forcing immersed boundary method is presented for the simple and efficient simulation of strongly coupled fluid-structure interaction. The previous formulation by Yang and Balaras (An embedded-boundary formulation for large-eddy simulation of turbulent flows interacting with moving boundaries, J. Comput. Phys. 215 (2006) 12–40) is greatly simplified without sacrificing the overall accuracy. The fluid-structure coupling scheme of Yang et al. (A strongly-coupled, embedded-boundary method for fluid-structure interactions of elastically mounted rigid bodies, J. Fluids Struct. 24 (2008) 167–182) is also significantly expedited without altering the strong coupling property. Several cases are examined and compared with the results from the previous formulations to demonstrate the accuracy, simplicity and efficiency of the new method.

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