Academic research experience · METU

Hybrid Lattice Boltzmann Method for Particle-Laden Homogeneous Isotropic Turbulence

Four published DNS panels showing flow quantities around a fixed sphere in isotropic turbulence. — Reference figure · DNS of flow around a fixed sphere in isotropic turbulence. A. W. Vreman, JFM (2016), Fig. 5 · CC BY 4.0. External study.

This study examines how finite-size, non-spherical rigid particles interact with freely decaying homogeneous isotropic turbulence. A Hybrid Lattice Boltzmann Method models the two-way interaction: the flow exerts forces and torques on the particles, while the moving particles affect the surrounding flow.

A velocity field generated by pseudo-spectral direct numerical simulation (DNS) initializes the HLBM simulation at t = 0. The flow then evolves freely, without continuous coupling to a DNS solver or sustained turbulence forcing. This setup allows the particle–flow interactions to be examined as the turbulent field decays.

This study forms part of Mehmet Fazlıoğlu’s academic research experience at Middle East Technical University.