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Article

Evaluation of a Near-Wall-Modeled Large Eddy Lattice Boltzmann Method for the Analysis of Complex Flows Relevant to IC Engines

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Lattice Boltzmann Research Group, Institute for Mechanical Process Engineering and Mechanics, Karlsruhe Institute of Technology, Straße am Forum 8, 76131 Karlsruhe, Germany
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Process Machines, Institute for Mechanical Process Engineering and Mechanics, Karlsruhe Institute of Technology, Straße am Forum 8, 76131 Karlsruhe, Germany
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Reactive Flows and Diagnostics, Department of Mechanical Engineering, Technical University of Darmstadt, Otto-Berndt-Str. 3, 64287 Darmstadt, Germany
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Author to whom correspondence should be addressed.
Computation 2020, 8(2), 43; https://doi.org/10.3390/computation8020043
Received: 4 April 2020 / Revised: 28 April 2020 / Accepted: 30 April 2020 / Published: 5 May 2020
In this paper, we compare the capabilities of two open source near-wall-modeled large eddy simulation (NWM-LES) approaches regarding prediction accuracy, computational costs and ease of use to predict complex turbulent flows relevant to internal combustion (IC) engines. The applied open source tools are the commonly used OpenFOAM, based on the finite volume method (FVM), and OpenLB, an implementation of the lattice Boltzmann method (LBM). The near-wall region is modeled by the Musker equation coupled to a van Driest damped Smagorinsky-Lilly sub-grid scale model to decrease the required mesh resolution. The results of both frameworks are compared to a stationary engine flow bench experiment by means of particle image velocimetry (PIV). The validation covers a detailed error analysis using time-averaged and root mean square (RMS) velocity fields. Grid studies are performed to examine the performance of the two solvers. In addition, the differences in the processes of grid generation are highlighted. The performance results show that the OpenLB approach is on average 32 times faster than the OpenFOAM implementation for the tested configurations. This indicates the potential of LBM for the simulation of IC engine-relevant complex turbulent flows using NWM-LES with computationally economic costs. View Full-Text
Keywords: turbulent flow; large-eddy simulation; wall function; IC engine; OpenLB; OpenFOAM; particle image velocimetry turbulent flow; large-eddy simulation; wall function; IC engine; OpenLB; OpenFOAM; particle image velocimetry
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MDPI and ACS Style

Haussmann, M.; Ries, F.; Jeppener-Haltenhoff, J.B.; Li, Y.; Schmidt, M.; Welch, C.; Illmann, L.; Böhm, B.; Nirschl, H.; Krause, M.J.; Sadiki, A. Evaluation of a Near-Wall-Modeled Large Eddy Lattice Boltzmann Method for the Analysis of Complex Flows Relevant to IC Engines. Computation 2020, 8, 43. https://doi.org/10.3390/computation8020043

AMA Style

Haussmann M, Ries F, Jeppener-Haltenhoff JB, Li Y, Schmidt M, Welch C, Illmann L, Böhm B, Nirschl H, Krause MJ, Sadiki A. Evaluation of a Near-Wall-Modeled Large Eddy Lattice Boltzmann Method for the Analysis of Complex Flows Relevant to IC Engines. Computation. 2020; 8(2):43. https://doi.org/10.3390/computation8020043

Chicago/Turabian Style

Haussmann, Marc, Florian Ries, Jonathan B. Jeppener-Haltenhoff, Yongxiang Li, Marius Schmidt, Cooper Welch, Lars Illmann, Benjamin Böhm, Hermann Nirschl, Mathias J. Krause, and Amsini Sadiki. 2020. "Evaluation of a Near-Wall-Modeled Large Eddy Lattice Boltzmann Method for the Analysis of Complex Flows Relevant to IC Engines" Computation 8, no. 2: 43. https://doi.org/10.3390/computation8020043

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