Abstract
| 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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Turbulence During the Compression Stroke. / Antila, Eero; Nuutinen, Mika; Kaario, Ossi.
CIMAC Technical Paper Database. 2013.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Professional
TY - GEN
T1 - Turbulence During the Compression Stroke
AU - Antila, Eero
AU - Nuutinen, Mika
AU - Kaario, Ossi
PY - 2013
Y1 - 2013
N2 - 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
AB - 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
M3 - Conference article in proceedings
BT - CIMAC Technical Paper Database
ER -