Different boundary conditions for LES solver Palm 6.0 used for ABL in tunnel experiment

Řezníček, Hynek, et al. "Different boundary conditions for LES solver Palm 6.0 used for ABL in tunnel experiment." Programs and Algorithms of Numerical Mathematics. Prague: Institute of Mathematics CAS, 2023. 209-218. <http://eudml.org/doc/299010>.

@inProceedings{Řezníček2023,
abstract = {We tried to reproduce results measured in the wind tunnel experiment with a CFD simulation provided by numerical model PALM. A realistic buildings layout from the Prague-Dejvice quarter has been chosen as a testing domain because solid validation campaign for PALM simulation of Atmospheric Boundary Layer (ABL) over this quarter was documented in the past. The question of input data needed for such simulation and capability of the model to capture correctly the inlet profile and its turbulence structure provided by the wind-tunnel is discussed in the study. The PALM dynamical core contains a solver for the Navier-Stokes equations. By default, the model uses the Large Eddy Simulation (LES) approach in which the bulk of the turbulent motions is explicitly resolved. It is well validated tool for simulations of the complex air-flow within the real urban canopy and also within its reduced scale provided by wind tunnel experiments. However the computed flow field between the testing buildings did not correspond well to the measured wind velocity in some points. Different setting of the inlet boundary condition was tested but none of them gave completely developed turbulent flow generated by vortex generators and castellated barrier wall place at the entrance of the aerodynamic section of the wind tunnel.},
author = {Řezníček, Hynek, Geletič, Jan, Bureš, Martin, Krč, Pavel, Resler, Jaroslav, Vrbová, Kateřina, Trush, Arsenii, Michálek, Petr, Beneš, Luděk, Sühring, Matthias},
booktitle = {Programs and Algorithms of Numerical Mathematics},
keywords = {large eddy simulation; wind tunnel; atmospheric boundary layer; PALM model; turbulence},
location = {Prague},
pages = {209-218},
publisher = {Institute of Mathematics CAS},
title = {Different boundary conditions for LES solver Palm 6.0 used for ABL in tunnel experiment},
url = {http://eudml.org/doc/299010},
year = {2023},
}

TY - CLSWK
AU - Řezníček, Hynek
AU - Geletič, Jan
AU - Bureš, Martin
AU - Krč, Pavel
AU - Resler, Jaroslav
AU - Vrbová, Kateřina
AU - Trush, Arsenii
AU - Michálek, Petr
AU - Beneš, Luděk
AU - Sühring, Matthias
TI - Different boundary conditions for LES solver Palm 6.0 used for ABL in tunnel experiment
T2 - Programs and Algorithms of Numerical Mathematics
PY - 2023
CY - Prague
PB - Institute of Mathematics CAS
SP - 209
EP - 218
AB - We tried to reproduce results measured in the wind tunnel experiment with a CFD simulation provided by numerical model PALM. A realistic buildings layout from the Prague-Dejvice quarter has been chosen as a testing domain because solid validation campaign for PALM simulation of Atmospheric Boundary Layer (ABL) over this quarter was documented in the past. The question of input data needed for such simulation and capability of the model to capture correctly the inlet profile and its turbulence structure provided by the wind-tunnel is discussed in the study. The PALM dynamical core contains a solver for the Navier-Stokes equations. By default, the model uses the Large Eddy Simulation (LES) approach in which the bulk of the turbulent motions is explicitly resolved. It is well validated tool for simulations of the complex air-flow within the real urban canopy and also within its reduced scale provided by wind tunnel experiments. However the computed flow field between the testing buildings did not correspond well to the measured wind velocity in some points. Different setting of the inlet boundary condition was tested but none of them gave completely developed turbulent flow generated by vortex generators and castellated barrier wall place at the entrance of the aerodynamic section of the wind tunnel.
KW - large eddy simulation; wind tunnel; atmospheric boundary layer; PALM model; turbulence
UR - http://eudml.org/doc/299010
ER -