Herein, hydrodynamic analysis from a large-eddy simulation in Couette–Taylor–Poiseuille (CTP) geometry is numerically investigated. The present geometry is inspired by a previous experimental work in which heat transport phenomena were investigated in a heat recovery system devoted to a rotary kiln facility. The streamwise and spanwise components o...
status: published
Wind tunnel generation of flows representative of the Atmospheric Boundary Layer (ABL) still requires trial-and-error based design process for both passive and active devices. To address this issue, a new type of passive grids – Multiscale Inhomogeneous Grids (MIGs) — is presented. It takes advantage of obstruction variations and interacting wakes ...
Direct numerical simulation data obtained from two turbulent, lean hydrogen–air flames propagating in a box are analyzed to explore the influence of combustion-induced thermal expansion on turbulence in unburned gas. For this purpose, Helmholtz–Hodge decomposition is applied to the computed velocity fields. Subsequently, the second-order structure ...
Wind turbines are exposed to the turbulent wind of the atmospheric boundary layer. Consequently, the aerodynamic forces acting on the rotor blades are highly complex. To improve the understanding, a common practice is the experimental or numerical investigation of 2d (wind turbine) blade sections. In these investigations, the flow around the 2d bla...
Experiments were conducted to study the transition and flow development in a laminar separation bubble (LSB) formed on an aerofoil. The effects of a wide range of freestream turbulence intensity (0.15%
status: published
Wind tunnel generation of flows representative of the Atmospheric Boundary Layer (ABL) still requires trial-and-error based design processes for both passive and active devices. To address this issue, a new type of passive grids-Multiscale Inhomogeneous Grids (MIGs)-is presented. It takes advantage of obstruction variations and interacting wakes to...
Le refroidissement par impact constitue une des méthodes les plus efficaces pour extraire de la chaleur d'un matériau. C'est pourquoi l'utilisation de jets impactant une surface est largement répandue dans les systèmes industriels, que ce soit dans les domaines des transports, en électronique ou bien pour la fabrication de certains matériaux. Une b...
A new deep learning-based approach to wall models is proposed here. The wall model is inspired by classical wall laws, which rely on wall dimensionless quantities, such as the wall distance y + , the wall velocity u + , the wall friction velocity u τ and the wall pressure gradient p +. This paper describes the model formulation, the implementation ...
