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arXiv · 1401.6548

Implicit Large Eddy Simulation of Cavitation in Micro Channel Flows

S Hickel·M. Mihatsch·S. J. Schmidt
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Abstract

We present a numerical method for Large Eddy Simulations (LES) of compressible two-phase flows. The method is validated for the flow in a micro channel with a step-like restriction. This setup is representative for typical cavitating multi-phase flows in fuel injectors and follows an experimental study of Iben et al., 2010. While a diesel-like test fuel was used in the experiment, we solve the compressible Navier-Stokes equations with a barotropic equation of state for water and vapor and a simple phase-change model based on equilibrium assumptions. Our LES resolve all wave dynamics in the compressible fluid and the turbulence production in shear layers.

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S Hickel, M. Mihatsch, S. J. Schmidt. 2014-01-25. Implicit Large Eddy Simulation of Cavitation in Micro Channel Flows. https://arxiv.org/abs/1401.6548

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