Engine manifold flow

stephen_devaux · July 21, 2011, 03:40

Good day all

I'm a 4th year engineering student tasked with using CFD to analyze the effects of pressure pulses, scavenging, Helmholtz resonance and so on in the exhaust and inlet manifolds of a 4 stroke IC engine. I do not have a large amount of CFD experience and I was hoping some one could point me in the right direction with concerns to the following, Firstly 1-d vs 2-d vs 3-d, and secondly should one model the entire cylinder with valves including the combustion or would it be sufficient to use a user defined source with varying pressure/mass flow rate's at the inlet or exit of the manifolds?

chocolate_rain · July 21, 2011, 03:51

what cfd software are you using.

stephen_devaux · July 21, 2011, 03:54

Hi chocolate_rain im using fluent, but i also have access to CFX. Im not aware of any advantages of either

July 21, 2011, 03:40	Engine manifold flow	#1
stephen_devaux New Member Stephen Join Date: Jul 2011 Posts: 2 Rep Power: 0	Good day all I'm a 4th year engineering student tasked with using CFD to analyze the effects of pressure pulses, scavenging, Helmholtz resonance and so on in the exhaust and inlet manifolds of a 4 stroke IC engine. I do not have a large amount of CFD experience and I was hoping some one could point me in the right direction with concerns to the following, Firstly 1-d vs 2-d vs 3-d, and secondly should one model the entire cylinder with valves including the combustion or would it be sufficient to use a user defined source with varying pressure/mass flow rate's at the inlet or exit of the manifolds? Jenisha_Naidoo likes this.

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July 21, 2011, 03:51		#2
chocolate_rain New Member Join Date: Jul 2011 Posts: 1 Rep Power: 0	what cfd software are you using.

July 21, 2011, 03:54		#3
stephen_devaux New Member Stephen Join Date: Jul 2011 Posts: 2 Rep Power: 0	Hi chocolate_rain im using fluent, but i also have access to CFX. Im not aware of any advantages of either