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arXiv · 2311.13493

Turbulence modulation by suspended finite-sized particles -- Towards physics-based multiphase subgrid modeling

S. Balachandar·C. Peng·L. -P. Wang
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Abstract

The presence of a dispersed phase substantially modifies small-scale turbulence. However, there has not been a comprehensive mechanistically-based understanding to predict turbulence modulation. Based on the energy flux balance, we propose a theoretical model to predict the turbulent kinetic energy modulation in isotropic turbulence due to the dispersed phase. The comparison between model predictions and results from particle-resolved simulations and high-fidelity experiments validates the performance of the model over a wide range of turbulence and particle parameters.

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S. Balachandar, C. Peng, L. -P. Wang. 2023-11-22. Turbulence modulation by suspended finite-sized particles -- Towards physics-based multiphase subgrid modeling. https://arxiv.org/abs/2311.13493

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