Simulations of Aerodynamic Separated Flows Using the Lattice Boltzmann Solver XFlow

M. Chávez-Modena, J. L. Martínez, J. A. Cabello and E. Ferrer
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M. Chávez-Modena: Applied Mathematics Dept., Universidad Politécnica, de Madrid-ETSIAE Pz. Cardenal Cisneros 3, E28040 Madrid, Spain
J. L. Martínez: Future Projects, Airbus Spain, Paseo John Lennon, E28906 Madrid, Spain
J. A. Cabello: Future Projects, Airbus Spain, Paseo John Lennon, E28906 Madrid, Spain
E. Ferrer: Applied Mathematics Dept., Universidad Politécnica, de Madrid-ETSIAE Pz. Cardenal Cisneros 3, E28040 Madrid, Spain

Energies, 2020, vol. 13, issue 19, 1-22

Abstract: We present simulations of turbulent detached flows using the commercial lattice Boltzmann solver XFlow (by Dassault Systemes). XFlow’s lattice Boltzmann formulation together with an efficient octree mesh generator reduce substantially the cost of generating complex meshes for industrial flows. In this work, we challenge these meshes and quantify the accuracy of the solver for detached turbulent flows. The good performance of XFlow when combined with a Large-Eddy Simulation turbulence model is demonstrated for different industrial benchmarks and validated using experimental data or fine numerical simulations. We select five test cases: the Backward-facing step the Goldschmied Body the HLPW-2 (2nd High-Lift Prediction Workshop) full aircraft geometry, a NACA0012 under dynamic stall conditions and a parametric study of leading edge tubercles to improve stall behavior on a 3D wing.

Keywords: turbulent flow; lattice Boltzmann; detached flow; large eddy simulation; dynamic geometry (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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