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

Balachandar, S.1; Peng, C.2; Wang, L. -P.3

2024-04-11

10.1103/PhysRevFluids.9.044304

PHYSICAL REVIEW FLUIDS   影响因子和分区

2469-990X

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 prior particle-resolved simulations and existing high-fidelity experiments supports the performance of the model over a range of turbulence and particle parameters. The model is then used to explore turbulence modulation characteristics over a wider parameter space formed by five independent system-controlling parameters, showing rather complicated dependence on the particle size and particle-to-fluid density ratio.

SCI ; EI

英语

其他

National Natural Science Foundation of China(NSFC)["T2250710183","U2241269","11988102"]

Physics

Physics, Fluids & Plasmas

WOS:001221974900001

AMER PHYSICAL SOC

Web of Science

1.Univ Florida, Gainesville, FL 32608 USA
2.Shandong Univ, Jinan, Shandong, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen, Guangdong, Peoples R China

Balachandar, S.,Peng, C.,Wang, L. -P.. Turbulence modulation by suspended finite-sized particles: Toward physics-based multiphase subgrid modeling[J]. PHYSICAL REVIEW FLUIDS,2024,9(4).

Balachandar, S.,Peng, C.,&Wang, L. -P..(2024).Turbulence modulation by suspended finite-sized particles: Toward physics-based multiphase subgrid modeling.PHYSICAL REVIEW FLUIDS,9(4).

Balachandar, S.,et al."Turbulence modulation by suspended finite-sized particles: Toward physics-based multiphase subgrid modeling".PHYSICAL REVIEW FLUIDS 9.4(2024).