Numerical investigation of inlet condition effect on thermo-fluid characteristics of turbulent plane jet

Author

Faghani, Ehsan ; Faghani, Pedram ; Eskandari, Mehrdad

Author_Institution

Mechatron. Syst. Eng., Simon Fraser Univ., Vancouver, BC, Canada

fYear

2010

fDate

2-5 June 2010

Firstpage

1

Lastpage

9

Abstract

In this research the fluid and thermal characteristics of a plane turbulent jet flow is studied numerically. The results of two dimensional jet issued from a slot nozzle are presented. A numerical method employing control volume approach with collocated grid arrangement was employed. The turbulent stresses are approximated using k-ε model with two different inlet conditions. The velocity and temperature fields are presented and the rates of their decay at jet centerline are noted. Special attention has been drawn on the influence of the Reynolds number (based on hydraulic diameter) as well as the inflow conditions on the evolution of the plane jet. An influence on the jet evolution is found for Re<;6000, but also that the jet is close to a converged state for higher Reynolds numbers. The influence of the inflow conditions on the jet characteristics is so strong.

Keywords

jets; nozzles; turbulence; Reynolds number; collocated grid arrangement; control volume approach; inlet condition effect; slot nozzle; thermo-fluid characteristics; turbulent plane jet; Computational efficiency; Computational modeling; Equations; Hydraulic diameter; Mechatronics; Predictive models; Systems engineering and theory; Temperature; Thermal force; Viscosity; Inflow conditions; Plane Jet; Reynolds Number; temperature field;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2010 12th IEEE Intersociety Conference on

Conference_Location

Las Vegas, NV

ISSN

1087-9870

Print_ISBN

978-1-4244-5342-9

Electronic_ISBN

1087-9870

Type

conf

DOI

10.1109/ITHERM.2010.5501361

Filename

5501361