Towards a Direct Numerical Simulation of Primary Jet Breakup with Evaporation
作者： Jonathan Reutzsch , Moritz Ertl , Martina Baggio , Adrian Seck , Bernhard Weigand
DOI: 10.1007/978-3-030-13325-2_15
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摘要: The primary breakup of liquid jets plays an important role in fuel injection for combustion engines and gas turbines. Due to the ambient conditions also evaporates during breakup. Direct Numerical Simulations (DNS) are well suited analysis this phenomena. As a first step towards understanding problem, DNS evaporating jet is carried out comparison with non presented. We use in-house 3D Computational Fluid Dynamics (CFD) code Free Surface (FS3D) solve incompressible Navier-Stokes equations. Volume (VOF) method used combinations Piecewise Linear Interface Calculation (PLIC) reconstruct sharp interface. energy equation solved obtain phase change at were able conduct purely Eulerian simulation atomization. morphology vapour concentration shown analysed. droplet size distribution shows influence evaporation, leading smaller droplets. presented results good accordance our expectation as other investigations literature. In addition, we present investigation into replacing pointers fields arrays improve computational performance. With increase efficiency speed up more than 40%.
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