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ILASS Americas 20th Annual Conference on Liquid Atomization and Spray Systems, Chicago, IL, May 2007 A Hybrid Lagrangian-Eulerian Approach for Two-Phase Flows
 

Summary: ILASS Americas 20th Annual Conference on Liquid Atomization and Spray Systems, Chicago, IL, May 2007
A Hybrid Lagrangian-Eulerian Approach for Two-Phase Flows
with Fully Resolved Interfaces
Ehsan Shams and Sourabh V. Apte
Department of Mechanical Engineering
Oregon State University
204 Rogers Hall, Corvallis, OR 97331
Abstract
A hybrid Lagrangian-Eulerian (hLE) scheme, combining a particle-based, mesh-free technique with a finite-
volume flow solver, is developed for direct simulations of two-phase flows. This approach merges the naturally
adaptive nature of particle-based schemes, for efficient representation of the interface between two media,
with the relative flexibility offered by grid-based solvers for complex flows. A mesh-free, particle-based scheme
for interface tracking (Hieber & Koumoutsakos 2005) is first integrated with a co-located grid based finite
volume solver. A balanced force algorithm (Francois et al. 2006, Herrmann 2006), for accurate representation
of surface tension forces, is used to solve the two-phase flow equations on a fixed background mesh. The
accuracy of the particle-based scheme is first verified for standard test cases on interface tracking. The
hybrid scheme is then applied to perform coupled two-phase flow simulations of stationary drop and rising
bubbles.
Corresponding Author: sva@engr.orst.edu
Introduction

  

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

 

Collections: Engineering