WIT Press


A Level-set Based Sharp Interface Method For Three-dimensional Incompressible Flows With Complex Moving Boundaries

Price

Free (open access)

Paper DOI

10.2495/MB030091

Volume

36

Pages

12

Published

2003

Size

588 kb

Author(s)

S. Marella, L. Tran & H. S. Udaykumar

Abstract

A level-set based sharp interface method for three-dimensional incompressible flows with complex moving boundaries S. Marella, L. Tran & H. S. Udaykumar University of Iowa, IowaCity, IA, USA Abstract This paper presents a computational technique capable of simulating threedimensional flows involving stationary or moving boundaries on fixed grid. This method relies on finite-difference schemes for the flow governing equations and a level-set method to track the embedded boundaries. The mesh points adjoining the interface are subjected to special treatment to capture the immersed interface without smearing. The results of the accuracy studies indicate that the accuracy is not compromised in adopting finite-difference schemes instead of finitevolume methods. Several two- and three-dimensional flows simulated for validation show that the current method compares well with the benchmark results for a variety of problems. 1 Introduction We present a finite-difference sharp interface technique to han

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