Evaluation of PaSR Model in Modeling of Diesel Spray Combustion

In this study, combustion of diesel spray has been modeledby partially stirred reactor(PaSR) model. Combustion indiesel spray contains three main steps which are ignitiondelay, premixed combustion and mixing-controlledcombustion. Ignition delay is originated from physical delayand chemical delay. Mixing of fuel and air and otherphenomena that related to spray give rise to physical delay.Chemical delay is caused by propagation of chain reactions.In this article, effect of turbulence on ignition delay isstudied. It is concluded that effect of turbulence on ignitiondelay and flame lift-off height is not critical if a detailed isused.

کلیدواژه ها:

Diesel Spray Combustion ، Premixedcombustion ، Non-premixed combustion ، PaSR Model