A Fictitious Domain Approach to the DirectNumerical Simulation of IncompressibleViscous Flow past Moving Rigid Bodies:Application to Particulate Flow
نویسندگان
چکیده
A Fictitious Domain Approach to the Direct Numerical Simulation of Incompressible Viscous Flow past Moving Rigid Bodies: Application to Particulate Flow R. Glowinski,∗ T. W. Pan,∗ T. I. Hesla,† D. D. Joseph,† and J. Périaux‡ ∗Department of Mathematics, University of Houston, Houston, Texas 77204-3476; †Aerospace Engineering and Mechanics, University of Minnesota, 107 Ackerman Hall, 110 Union Street, Minneapolis, Minnesota 55455; and ‡Dassault Aviation, 1 Rue Charles Blum, Cedex 300, 92552 Saint Cloud, France E-mail: [email protected], [email protected], [email protected], [email protected], [email protected]
منابع مشابه
A new formulation of the distributed Lagrange multiplier/fictitious domain method for particulate flows
A Lagrange-multiplier-based fictitious-domain method (DLM) for the direct numerical simulation of rigid particulate flows in a Newtonian fluid was presented by Glowinski, Pan, Hesla and Joseph (1999). An important feature of this finite element based method is that the flow in the particle domain is constrained to be a rigid body motion by using a well-chosen field of Lagrange multipliers. The ...
متن کاملFictitious boundary and moving mesh methods for the numerical simulation of rigid particulate flows
In this paper, we investigate the numerical simulation of rigid particulate flows using a new moving mesh method combined with the multigrid fictitious boundary method (FBM) [9, 10]. With this approach, the mesh is dynamically relocated through a special partial differential equation to capture the region near the surface of the moving particles with high accuracy. The complete system is realiz...
متن کاملA variable-density fictitious domain method for particulate flows with broad range of particle-fluid density ratios
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 constr...
متن کاملNumerical Simulation of Flow Past Oscillating Airfoil Using Oscillation of Flow Boundary Condition
The present study is devoted to an approximate modeling for numerical simulation of flows past oscillating airfoils. In this study, it is shown that the harmonic oscillating objects can be studied by simple numerical codes that are not able to solve moving grids. Instead of using moving grid for the simulation of flowfield around an oscillating airfoil, this unsteady flow is solved on a fixed g...
متن کاملA Variable-Density Fictitious-Domain Method for Fully Resolved Simulation of High-Density Ratio Fluid-Particle Systems
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 constr...
متن کامل