Different Boundary Conditions For LES Solver PALM 6.0 Used for ABL in Tunnel Experiment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985807%3A_____%2F23%3A00571279" target="_blank" >RIV/67985807:_____/23:00571279 - isvavai.cz</a>

Alternative codes found

RIV/68378297:_____/23:00571279 RIV/68407700:21220/23:00366182

Result on the web

<a href="https://panm21.math.cas.cz/sbornik/PANM21_sbornik.pdf" target="_blank" >https://panm21.math.cas.cz/sbornik/PANM21_sbornik.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21136/panm.2022.19" target="_blank" >10.21136/panm.2022.19</a>

Result language

angličtina

Original language name

Different Boundary Conditions For LES Solver PALM 6.0 Used for ABL in Tunnel Experiment

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10509 - Meteorology and atmospheric sciences

Project

<a href="/en/project/GA22-08786S" target="_blank" >GA22-08786S: Heat transfer in the surface boundary layers of wall assemblies and its effect on the energy performance of buildings</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Programs and Algorithms of Numerical Mathematics 21

ISBN

978-80-85823-73-8

ISSN

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e-ISSN

—

Number of pages

10

Pages from-to

209-218

Publisher name

Institute of Mathematics CAS

Place of publication

Prague

Event location

Jablonec nad Nisou

Event date

Jun 19, 2022

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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