Lattice Boltzmann simulations of homogeneous shear turbulence laden with finite-size particles

Peng，Cheng1; Wang，Lian Ping2,3; Ji，Li1; Chen，Songying1; Zhu，Zuchao4

2024-01-15

10.1016/j.camwa.2023.11.016

Computers and Mathematics with Applications   影响因子和分区

0898-1221

As a powerful tool to investigate turbulent flows laden with finite-size particles, the lattice Boltzmann method (LBM)'s capability to contribute to a particle-resolved simulation of particle-laden homogeneous shear turbulence (HST) has yet to be realized. To capture the turbulence-particle interactions more accurately, the interpolated-bounce-back schemes combined with the momentum-exchange method that possesses second-order accuracy are adopted to treat the no-slip condition on particle surfaces and compute the hydrodynamic force/torque. However, this choice brings extra difficulties in enforcing the shear periodic boundaries due to the absence of fluid information in solid regions. The present study resolves these difficulties by designing a scheme to construct the distribution functions in the particle gaps based on the lubrication theory and an algorithm for the “refilling” process near the shear periodic boundaries. With these developments, a direct numerical simulation of particle-laden HST is achieved with LBM. The turbulence modulation effects induced by particles are briefly discussed.

Interpolated bounce-back Lattice Boltzmann method Particle-laden homogeneous shear turbulence Refilling process Shear periodic boundary

SCI ; EI

英语

其他

MATHEMATICS

2-s2.0-85177840719

Scopus

1.Key Laboratory of High Efficiency and Clean Mechanical Manufacture,Ministry of Education,School of Mechanical Engineering,Shandong University,Jinan,Shandong,250061,China
2.Guangdong Provincial Key Laboratory of Turbulence Research and Applications,Center for Complex Flows and Soft Matter Research,Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
3.Guangdong-Hong Kong-Macao Joint Laboratory for Data-Driven Fluid Mechanics and Engineering Applications,Department and Organization,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
4.School of Mechanical Engineering,Zhejiang Sci-Tech University,Hangzhou,Zhejiang,310018,China

Peng，Cheng,Wang，Lian Ping,Ji，Li,et al. Lattice Boltzmann simulations of homogeneous shear turbulence laden with finite-size particles[J]. Computers and Mathematics with Applications,2024,154:65-77.

Peng，Cheng,Wang，Lian Ping,Ji，Li,Chen，Songying,&Zhu，Zuchao.(2024).Lattice Boltzmann simulations of homogeneous shear turbulence laden with finite-size particles.Computers and Mathematics with Applications,154,65-77.

Peng，Cheng,et al."Lattice Boltzmann simulations of homogeneous shear turbulence laden with finite-size particles".Computers and Mathematics with Applications 154(2024):65-77.