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Advanced computational simulations of surface impingement of a train of ethanol drops: A pathway to developing spray-wall interaction submodels
Jr. Markt, , M. Raessi
Published in IEEE Computer Society
Volume: 20
Issue: 4
Pages: 56 - 65
The authors present a computational study of drop-train impingement on a smooth, initially dry surface, with the aim of providing a high-quality dataset to develop reliable spray-wall interaction submodels for engine simulations. Such submodels require information at micron scales, which is unfeasible to obtain experimentally under high-pressure engine conditions. However, supercomputing and high-resolution simulations can resolve thin liquid structures and their breakup, yielding accurate datasets for liquid splashing and film deposition. The current study employs an MPI-parallel multiphase flow solver to simulate surface impingement of a train of ethanol drops. Comparing its results to the experiments, the solvers capability in accurately capturing the sharp splashing threshold and splashed mass ratio was demonstrated. Through a computational technique that tags individual drops, further insight into the splashing dynamics postimpingement was gained, which could be used to formulate more sophisticated spray-wall interaction submodels. © 1999-2011 IEEE.
About the journal
JournalData powered by TypesetComputing in Science and Engineering
PublisherData powered by TypesetIEEE Computer Society