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

Autor:	Balachandar, S., Peng, C., Wang, L. -P.
Rok vydání:	2023
Předmět:	Physics - Fluid Dynamics
Druh dokumentu:	Working Paper
Popis:	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. Comment: 4 pages submitted to PRL
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2311.13493 Zobrazit plný text záznamu View this record from Arxiv