A Novel Turbulent Inflow Data Generation Method and its Application to the Simulation of Primary Breakup
Direct numerical and large eddy simulation of inhomogeneous flows are very sensitive to turbulent inflow boundary conditions. This contribution presents a new turbulent inflow data generation method based on an auxiliary simulation of forced turbulence. It combines the flexibility of synthetic turbulence generation methods with the accuracy of precursor simulations. The approach allows full control over turbulence properties and provides divergence-free boundary fields, featuring realistic Navier-Stokes dynamics.
Support by the German Research Foundation (Deutsche Forschungsgemeinschaft - DFG, GS: KL1456/1-1) is gratefully acknowledged. Computer resources for this project have been provided by the Gauss Centre for Supercomputing/Leibniz Supercomputing Centre under grant: pr48no. The authors also express their gratitude to the developers of the PARIS Simulator for providing the source code.
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