Intake Manifold

May 23, 2005, 05:47

I am going to simulate an engine intake manifold by fluent. I have only pressure values in inlet and outlet boundaries. Please answer to these questions:

1- These analysis should be compressible or incompressible?

2- Which boundary condition should I have to use?

3- Is pressure inlet and outlet boundary condition enough?

4- Do I need to use 1D software such as wave or GT-Power?

Please introduce me some paper in this area.

Best Regards,

David

Santoshnalanagula · December 31, 2013, 08:26

Try getting transient boundary condition in GT power model.
First analyse pressure drop across the runners individually consider one open at a time, steady state analysis is good enough. Then try finding mass flow rate of each runner try to keep cylinder to cylinder mass variation less.
Then go for transient analysis take pressure vs crank angle from GT, pressure drop Vs crankangle is your input condition at pressure outlet usual in guage pressure. Inlet will in pressure inlet in atm. pressue
For transient analysis you can import .cas file in transient boundary profile.

I hope this is helpful to you .

May 23, 2005, 05:47	Intake Manifold	#1
David Baker Guest Posts: n/a	I am going to simulate an engine intake manifold by fluent. I have only pressure values in inlet and outlet boundaries. Please answer to these questions: 1- These analysis should be compressible or incompressible? 2- Which boundary condition should I have to use? 3- Is pressure inlet and outlet boundary condition enough? 4- Do I need to use 1D software such as wave or GT-Power? Please introduce me some paper in this area. Best Regards, David

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
intake manifold	uday	Main CFD Forum	0	December 21, 2009 23:48
intake manifold simulation	uday	Main CFD Forum	6	December 21, 2009 01:39
1D3D GT coupling :intake manifold convergence prob	Micky	Siemens	1	June 20, 2008 23:02
Modeling of a airflow in a intake manifold	Jack	FLUENT	1	September 21, 2003 22:22
Modeling of a airflow in a intake manifold	Jack	Siemens	1	September 15, 2003 05:12

December 31, 2013, 08:26		#2
Santoshnalanagula New Member Santosh Nalanagula Join Date: Sep 2013 Posts: 3 Rep Power: 12	Try getting transient boundary condition in GT power model. First analyse pressure drop across the runners individually consider one open at a time, steady state analysis is good enough. Then try finding mass flow rate of each runner try to keep cylinder to cylinder mass variation less. Then go for transient analysis take pressure vs crank angle from GT, pressure drop Vs crankangle is your input condition at pressure outlet usual in guage pressure. Inlet will in pressure inlet in atm. pressue For transient analysis you can import .cas file in transient boundary profile. I hope this is helpful to you .