An immersed boundary method to solve fluid–solid interaction problems
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We describe an immersed-boundary technique which is adopted from the direct-forcing method. A virtual force based on the rate of momentum changes of a solid body is added to the Navier–Stokes equations. The projection method is used to solve the Navier–Stokes equations. The second-order Adam–Bashford scheme is used for the temporal discretization while the diffusive and the convective terms are discretized using the second-order central difference and upwind schemes, respectively. Some benchmark problems for both stationary and moving solid object have been simulated to demonstrate the capability of the current method in handling fluid–solid interactions.
KeywordsImmersed-boundary Direct-forcing Virtual force Projection method
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- 5.Dias A, Majumdar S, Numerical computation of flow around a circular cylinder, Technical Report, PS II Report, BITS Pilani, IndiaGoogle Scholar
- 10.Kalitzin G, Iaccarino G (2003) Toward immersed boundary simulation of high Reynolds number flows, Annual Research Briefs, Center for Turbulence Research, pp 369–378Google Scholar
- 23.Yusof JM (1996) Interaction of massive particles with turbulence. PhD dissertation, Department of Mechanical and Aerospace Engineering, Cornell UniversityGoogle Scholar
- 24.Yusof JM (1997) Combined immersed-boundary/B-spline methods for simulations of flow in complex geometries, Annual Research Briefs, Center for Turbulence Research, pp 317–327Google Scholar