Publication detail

Comparison of two inlet boundary approaches in numerical simulation of car ventilation outlet flow

TALANDA, T. NIEDOBA, P. LÍZAL, F. JÍCHA, M.

Original Title

Comparison of two inlet boundary approaches in numerical simulation of car ventilation outlet flow

English Title

Comparison of two inlet boundary approaches in numerical simulation of car ventilation outlet flow

Type

conference paper

Language

en

Original Abstract

The paper is concerned with the comparison of two inlet boundary approaches of numerical simulations. The first approach is based on the simulation of a sufficiently long duct upstream the area of interest with known volumetric flow rate. The second approach rests on the experimental measurement of the section closer to the area of interest. The experimental measurement provides velocity profile and in addition turbulent intensity compared to the first approach where only a velocity profile can be computed according to known volumetric flow rate. A simplified model of car ventilation outlet was chosen as a test case. The model consists of circular and rectangular duct, area of interest (closing flap, vertical slats and horizontal slats) and outlet box. We have compared the two mentioned inlet boundary approaches for two distinct values of volumetric flow rate for which the experimental data of the section upstream of the area of interest are available. The velocity and the turbulent kinetic energy profiles downstream of the area of interest were chosen as comparative characteristics.

English abstract

The paper is concerned with the comparison of two inlet boundary approaches of numerical simulations. The first approach is based on the simulation of a sufficiently long duct upstream the area of interest with known volumetric flow rate. The second approach rests on the experimental measurement of the section closer to the area of interest. The experimental measurement provides velocity profile and in addition turbulent intensity compared to the first approach where only a velocity profile can be computed according to known volumetric flow rate. A simplified model of car ventilation outlet was chosen as a test case. The model consists of circular and rectangular duct, area of interest (closing flap, vertical slats and horizontal slats) and outlet box. We have compared the two mentioned inlet boundary approaches for two distinct values of volumetric flow rate for which the experimental data of the section upstream of the area of interest are available. The velocity and the turbulent kinetic energy profiles downstream of the area of interest were chosen as comparative characteristics.

Keywords

inlet boundary condition, car ventilation outlet, numerical simulation

RIV year

2015

Released

17.11.2015

Publisher

EDP Sciences

Location

Liberec

Pages from

788

Pages to

791

Pages count

4

URL

Full text in the Digital Library

BibTex


@inproceedings{BUT120570,
  author="Tomáš {Talanda} and Pavel {Niedoba} and František {Lízal} and Miroslav {Jícha}",
  title="Comparison of two inlet boundary approaches in numerical simulation of 
car ventilation outlet flow",
  annote="The paper is concerned with the comparison of two inlet boundary approaches of numerical simulations. The first approach is based on the simulation of a sufficiently long duct upstream the area of interest with known volumetric flow rate. The second approach rests on the experimental measurement of the section closer to the area of interest. The experimental measurement provides velocity profile and in addition turbulent intensity compared to the first approach where only a velocity profile can be computed according to known volumetric flow rate. A simplified model of car ventilation outlet was chosen as a test case. The model consists of circular and rectangular duct, area of interest (closing flap, vertical slats and horizontal slats) and outlet box. We have compared the two mentioned inlet boundary approaches for two distinct values of volumetric flow rate for which the experimental data of the section upstream of the area of interest are available. The velocity and the turbulent kinetic energy profiles downstream of the area of interest were chosen as comparative characteristics.",
  address="EDP Sciences",
  booktitle="Proceedings of the International conference Experimental Fluid Mechanics 2015",
  chapter="120570",
  doi="10.1051/epjconf/201611402120",
  howpublished="print",
  institution="EDP Sciences",
  year="2015",
  month="november",
  pages="788--791",
  publisher="EDP Sciences",
  type="conference paper"
}