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International Conference on Multiphase Flow, ICMF 2010, Tampa, FL, May 30 June 4, 2010
 

Summary: 7th
International Conference on Multiphase Flow,
ICMF 2010, Tampa, FL, May 30 June 4, 2010
A Variable-Density Fictitious-Domain Method for Fully Resolved Simulation of
High-Density Ratio Fluid-Particle Systems
Sourabh V. Apte
and Justin Finn

School of Mechanical Industrial and Manufacturing Engineering
Oregon State University, Corvallis, OR 97333, USA
sva@engr.orst.edu and finnj@engr.orst.edu
Keywords: Fully resolved simulations, fictitious domain methods, high-density ratio,
freely moving particles, particle-vortex interactions.
Abstract
A numerical scheme for fully resolved simulation of fluid-particle systems with freely moving rigid particles is
developed. The approach is based on a fictitious domain method wherein the entire fluid-particle domain is assumed
to be an incompressible fluid but with variable density. The flow inside the particle domain is constrained to be a
rigid body motion using an additional rigidity constraint in a fractional step scheme. The rigidity constraint force
is obtained based on the fast computation technique proposed by Sharma and Patankar (2005). The particle is
assumed to be made up of material points moving on a fixed background mesh where the fluid flow equations are

  

Source: Apte, Sourabh V. - School of Mechanical, Industrial, and Manufacturing Engineering, Oregon State University

 

Collections: Engineering