113/11/7 (四) 大阪公立大學機械系 須賀一彦 (Kazuhiko SUGA) 教授
演講時間：113/11/7（四）15:30-17:00
演講地點：國立清華大學工程一館107演講廳
演講者：須賀一彦(Kazuhiko SUGA)教授（大阪公立大學機械系教授）
講題：LBM for Turbulence and Turbulent Heat Transfer in Complex Flows
演講摘要：
This seminar addresses the limitations of conventional lattice Boltzmann methods (LBMs) and introduces alternative, reliable LBM schemes for turbulence simulations. These include the D3Q27 multi-relaxation time (MRT) LBM, the regularized D3Q19 thermal LBM, and the imbalance correction (iBC) local mesh refinement methods developed by our group. After showcasing the enhanced simulation accuracy of these schemes, several DNS/LES studies on turbulence and turbulent heat transfer over complex surfaces (rough and/or porous walls) are presented. The results illustrate how turbulence and turbulent heat transfer are influenced by wall roughness and/or permeability through the Kelvin-Helmholtz instability.