Abstract
Normally diesel combustion simulations are started from
bottom dead centre before combustion. Initial values of
pressure and temperature are taken from experimental
results or 1D-simulations. As initial turbulence values
(k and ?), some correlation, intake flow simulation or
just best practise values are used. All those values are
initialized to be constant for whole simulation volume.
In the previous study intake channel simulations were
done. Authors found that the level of turbulence values
at TDC were different if the intake stroke was simulated
or if average values were initialized at IVC. In this
paper three different engines are simulated. For each
engine intake and compression strokes are simulated to
get the best possible knowledge about the real turbulence
values. From those results the average values of p, T, k,
? and swirl number at IVC are captured and used as
initial values of compression simulation. Finally better
method to initialize turbulence values is described and
tested
| Original language | English |
|---|---|
| Title of host publication | CIMAC Technical Paper Database |
| Publication status | Published - 2013 |
| MoE publication type | Not Eligible |
| Event | 27th CIMAC World Congress on Combustion Engine Technology - Shanghai, China Duration: 13 May 2013 → 16 May 2013 |
Conference
| Conference | 27th CIMAC World Congress on Combustion Engine Technology |
|---|---|
| Abbreviated title | CIMAC 2013 |
| Country | China |
| City | Shanghai |
| Period | 13/05/13 → 16/05/13 |
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Cite this
Antila, E., Nuutinen, M., & Kaario, O. (2013). Turbulence During the Compression Stroke. In CIMAC Technical Paper Database