Computational Approach to Steady RANS Simulations of the Homogeneous Neutrally-Stratified Atmospheric Boundary Layer (CROSBI ID 663775)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Cindori, Mihael ; Juretić, Franjo ; Džijan, Ivo ; Kozmar, Hrvoje
engleski
Computational Approach to Steady RANS Simulations of the Homogeneous Neutrally-Stratified Atmospheric Boundary Layer
Computational model was developed for the homogeneous neutrally-stratified atmospheric boundary layer (ABL) simulations. An important novelty is the wind-source implementation in the momentum equation. This wind-source term was calculated using the Reynolds shear stress distribution obtained in the previous wind-tunnel ABL simulations. The computational approach was first tested in an empty domain for the ABL flow developing above rural, suburban and urban type terrains. The flow along the computational domain is homogeneous and a good agreement between the computational and the experimental results is obtained. The turbulence kinetic energy decays with increasing the height from the ground surface, whereas the pressure gradient along the computational domain is negligible. A cubic building model was subjected to the computational simulations of the rural, suburban and urban type ABL flows. The computationally simulated pressure coefficient distributions at the cube surfaces show good agreement with the wind-tunnel measurements and available computational results, whereas the discrepancies in the calculated drag force coefficients coincide with the available previous investigations.
Atmospheric Boundary Layer ; RANS turbulence modelling ; Cubic building model ; Pressure coefficient ; Drag coefficient
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
1-20.
2018.
objavljeno
Podaci o matičnoj publikaciji
The 7th International Symposium on Computational Wind Engineering 2018
Podaci o skupu
The 7th International Symposium on Computational Wind Engineering 2018
predavanje
18.06.2018-22.06.2018
Seoul, Republika Koreja