Volvo Cars, Volvo Trucks
|Sponsors:||Swedish Energy Agency, Volvo Cars, Volvo Trucks|
|Start of project:||March 2008|
|End of project:||May 2014|
Two divisions at the Department of Applied Mechanics are involved in this project: Division of Combustion (prof. Ingemar Denbratt) and Division of Fluid Dynamics (prof. Lars Davidson).
The object of the project is to improve heat transfer predictions in combustion egines. Accurate prediction of heat tranfer will contribute to accurate computation of combustion and emissions (CO2, NOx etc)
Since the flow in the jet and the impingement zone is highly unsteady, transient simulations (URANS) will be carried out where part of the turbulence is resolved and part of it is modelled.
In real fuel-air jets in an engine, the jet is pulsating
and the jet consists of evaporating fuel drops in air. The turbulence
is largely created by the fuel drops. In the first part of the
project we will exclude the drops; instead we will impose turbulent
fluctuating inlet boundary conditions. These fluctuations
will be tuned so that they create the same amount
of turbulence as the fuel drops would do.
This page, Transient heat Transfer in impinging jets, should be part of a frames system at www.tfd.chalmers.se/~lada/projects/proind.html