2010-09-30

Theory and numerical simulations of wave generation in atomization using the volume of fluid method

Prof. Stéphane Zaleski, Université Pierre et Marie Curie, Paris

10 Feb 2011, 17:00; Location: S4|10-1

We describe computations performed using the Gerris code, an open-source software implementing finite volume solvers on an octree adaptive grid together with a piecewise linear volume of fluid interface tracking method. The parallelisation of Gerris is achieved by domain decomposition into a large number of grains (a "forest of tree" approach) followed by an optimized load balancing  procedure. We show examples of the capabilities of Gerris on several types of problems. In particular the jet atomization problem is an extremely challenging computational problem, in which a large number of small scales are generated. We discuss the wave generation in atomization and compare the prediction of the various theories, including the Orr-Sommerfeld stability computation of Boeck and coworkers.

Category: CE Seminar

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Technische Universität Darmstadt

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D-64293 Darmstadt

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