Ricardo Cortez's PhD Thesis Abstract

University of California at Berkeley
May 1995

Title: Impulse-based Particle Methods for Fluid Flow


A Lagrangian numerical method based on impulse variables is analyzed. A relation between impulse vectors and vortex dipoles with a prescribed dipole moment is presented. This relation is used to adapt the high-accuracy cutoff functions of vortex methods for use in impulse-based methods. A source of error in the long-time implementation of the impulse method is explained and two techniques for avoiding this error are presented. An application of impulse methods to the motion of a fluid surrounded by an elastic membrane is presented.

LBL Report No. 37206

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