E3S Web Conf.
Volume 85, 2019EENVIRO 2018 – Sustainable Solutions for Energy and Environment
|Number of page(s)||7|
|Section||Computational Fluid Dynamics in Built Environment|
|Published online||22 February 2019|
Evaluation of mean velocity and mean speed for test ventilated room from RANS and LES CFD modeling
Peter the Great St.Petersburg Polytechnic University, Department of Fluid Dynamics, Combustion and Heat Transfer, 29 Polytechnicheskaya str., St.Petersburg, 195251, Russia
2 Technical University of Sofia, Department of Hydroaerodynamics and Hydraulic Machines, 8 Kliment Ohridsky boulevard, Sofia, 1000, Bulgaria
* Corresponding author: email@example.com
The paper presents and discusses data for the ventilation airflow in an isothermal room corresponding to the Nielsen et al. (1978) test computed with Large Eddy Simulation (LES) and Reynolds-Averaged Navier-Stokes (RANS) approaches. As LES computations provide directly both the speed and velocity components data, the difference between the mean speed and mean velocity values is computed and discussed. For the RANS computations that give the mean velocity data only, application of the velocity-to-speed conversion procedure based on the turbulence kinetic energy field provided by a turbulence model resulted in accurate mean speed evaluation.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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