Publication result detail

Assessment of the Influence of Input Parameters in CFD Simulation of Ventilation in an Experimental Chamber

KUČÍREK, P.; ŠIKULA, O.

Original Title

Assessment of the Influence of Input Parameters in CFD Simulation of Ventilation in an Experimental Chamber

English Title

Assessment of the Influence of Input Parameters in CFD Simulation of Ventilation in an Experimental Chamber

Type

Paper in proceedings (conference paper)

Original Abstract

The aim of this paper is to evaluate the impact of selected input parameters on the accuracy and usability of CFD simulations. This paper compares the achieved results of Computational Fluid Dynamics (hereinafter CFD) simulations of air age with the ventilation results of a specific experimental box. A total of 16 variants were simulated for different simulation settings, including various computational domains and meshes in OpenFOAM, Ansys Fluent, DesignBuilder, and BlueCFD-AIR software. The paper primarily focuses on the importance of meeting the suitability criterion for the yPlus parameter used in the wall function of turbulent models k-ϵ and k-ω SST, and the resulting air age. Simulation with the best yPlus parameter shows the best agreement in airflow velocity and air age with the experiment. Overall, this led to an improvement in accuracy by 41 % compared to original simulation and 56 % compared to the previous our best OpenFOAM simulation.

English abstract

The aim of this paper is to evaluate the impact of selected input parameters on the accuracy and usability of CFD simulations. This paper compares the achieved results of Computational Fluid Dynamics (hereinafter CFD) simulations of air age with the ventilation results of a specific experimental box. A total of 16 variants were simulated for different simulation settings, including various computational domains and meshes in OpenFOAM, Ansys Fluent, DesignBuilder, and BlueCFD-AIR software. The paper primarily focuses on the importance of meeting the suitability criterion for the yPlus parameter used in the wall function of turbulent models k-ϵ and k-ω SST, and the resulting air age. Simulation with the best yPlus parameter shows the best agreement in airflow velocity and air age with the experiment. Overall, this led to an improvement in accuracy by 41 % compared to original simulation and 56 % compared to the previous our best OpenFOAM simulation.

Keywords

Ventilation; Turbulent flow; CFD Simulation; Air age; Wall function; OpenFOAM

Key words in English

Ventilation; Turbulent flow; CFD Simulation; Air age; Wall function; OpenFOAM

Authors

KUČÍREK, P.; ŠIKULA, O.

RIV year

2025

Released

08.07.2024

Publisher

IOP Publishing

Location

Bristol

Book

Technologies and Materials for Renewable Energy, Environment and Sustainability

ISBN

1742-6588

Periodical

Journal of Physics: Conference Series

Volume

2857

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

12

Pages count

12

URL

https://iopscience.iop.org/article/10.1088/1742-6596/2857/1/012037

Full text in the Digital Library

http://hdl.handle.net/11012/249943

BibTex

@inproceedings{BUT193805,
  author="Pavel {Kučírek} and Ondřej {Šikula}",
  title="Assessment of the Influence of Input Parameters in CFD Simulation of Ventilation in an Experimental Chamber",
  booktitle="Technologies and Materials for Renewable Energy, Environment and Sustainability",
  year="2024",
  journal="Journal of Physics: Conference Series",
  volume="2857",
  number="1",
  pages="1--12",
  publisher="IOP Publishing",
  address="Bristol",
  doi="10.1088/1742-6596/2857/1/012037",
  issn="1742-6588",
  url="https://iopscience.iop.org/article/10.1088/1742-6596/2857/1/012037"
}

Documents

Kucirek_2024_J._Phys.__Conf._Ser._2857_012037