Numerical simulation of a multi-store separation phenomenon: A fictitious domain approach

作者：Glowinski Roland; Pan Tsorng Whay^*; Periaux Jacques

来源：Computer Methods in Applied Mechanics and Engineering, 2006, 195(41-43): 5566-5581.

DOI：10.1016/j.cma.2005.09.018

• store separation
• fictitious domain method
• distributed Lagrange multipliers
• operator-splitting methods
• finite element methods

In this article we discuss the numerical simulation of multi-store separation phenomena taking place in incompressible Newtonian viscous fluids. We assume that these phenomena are modeled by the Navier-Stokes equations coupled to the Euler-Newton equations describing solid rigid body motions. The numerical methodology relies on the combination of a finite element approximation with time-discretization by operator-splitting and a Lagrange multiplier based fictitious domain method allowing the flow calculations to take place in a fixed simple shape space region. The results of numerical experiments are presented; they concern the separation and free fall of elongated ellipsoids under an airfoil shaped cylinder.

• 出版日期2006