modelling a Diesel engine

Arktik · November 24, 2010, 14:18

I'm simulating a CI engine in 2D using the in-cylinder model.

Fuel is injected into the cylinder.(Using Discrete phase model -> injections)
I'm using non premixed combustion with diesel unsteady flamelet.I have imported a CHEMKIN mechanism for heptane.

I've set fuel composition as shown.

During the compression stroke the temperature reaches only around 500K.
I think this is due to compression.

I have to model combustion.
Any suggestions?

isabel · August 1, 2011, 05:20

Dear Arktik,

Why don't you employ the non-premixed model with PDF approach instead of a CHEMKIM mechanism?

November 24, 2010, 14:18	modelling a Diesel engine	#1
Arktik New Member Anonymous Join Date: Oct 2010 Posts: 2 Rep Power: 0	I'm simulating a CI engine in 2D using the in-cylinder model. Fuel is injected into the cylinder.(Using Discrete phase model -> injections) I'm using non premixed combustion with diesel unsteady flamelet.I have imported a CHEMKIN mechanism for heptane. I've set fuel composition as shown. During the compression stroke the temperature reaches only around 500K. I think this is due to compression. I have to model combustion. Any suggestions?

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August 1, 2011, 05:20		#2
isabel Senior Member isabel Join Date: Apr 2009 Location: Spain Posts: 171 Rep Power: 17	Dear Arktik, Why don't you employ the non-premixed model with PDF approach instead of a CHEMKIM mechanism?