How to find pressure drop in an element?

jmex · September 29, 2017, 07:53

Hello,

I am looking to analyse pressure drop across a boundary region having a structure like below

Any idea on how to begin as structure dimension is very small.

Thanks,

jmex · October 5, 2017, 07:42

Can someone help in this case?
I'm stuck in this situation as the the part is having very tiny hole like gaps for the flame to pass through. This part will stop the flame to pass and hence there will be pressure drop. I would like to simulate the same in either CFX or FLUENT. Any way i could do the same. How to mesh such a tiny hole? I am thinking to draft a single hole and import geometry in ansys for meshing. But will it be perfect way to find pressure drop across the part which is usually placed in a pipe?

jmex · October 26, 2017, 06:57

Is it possible to define that portion as porosity? If yes, then how can i find value of porosity knowing pressure drop from practical data?

Haidar Fakhri · October 29, 2017, 02:46

Hi jmex

Use probe in Cfd post. It can help u

Thanks
Haidar

jmex · October 30, 2017, 05:12

Quote:

Originally Posted by Haidar Fakhri

Hi jmex

Use probe in Cfd post. It can help u

Thanks
Haidar

Thank you so much for your reply Haider.

How to define probe which will show porosity value?

Haidar Fakhri · October 30, 2017, 05:19

The value will shown at u click on ur point. U can setting the variable what u want.
In the probe will shown xyz, u can input on it

September 29, 2017, 07:53	How to find pressure drop in an element?	#1
jmex Member Jigs Join Date: Aug 2017 Location: Pune Posts: 39 Rep Power: 8	Hello, I am looking to analyse pressure drop across a boundary region having a structure like below Any idea on how to begin as structure dimension is very small. Thanks,

October 29, 2017, 02:46		#4
Haidar Fakhri New Member Suraji Join Date: Mar 2016 Posts: 18 Rep Power: 10	Hi jmex Use probe in Cfd post. It can help u Thanks Haidar jmex likes this.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
question regarding LES of pipe flow - pimpleFoam	Dan1788	OpenFOAM Running, Solving & CFD	37	December 26, 2017 14:42
Mesh element for velocity and pressure drop prediction	sache	Main CFD Forum	2	July 27, 2014 11:03
Mass flow rate prediction of Purge control valve using set pressure drop	enr_venkat	CFX	11	February 27, 2014 11:30
CFX-Pre problem, pls help!!!	cth_yao	CFX	0	February 17, 2012 00:52
Pressure Drop Calculation	mk_mard	STAR-CCM+	3	August 29, 2011 02:06

October 5, 2017, 07:42		#2
jmex Member Jigs Join Date: Aug 2017 Location: Pune Posts: 39 Rep Power: 8	Can someone help in this case? I'm stuck in this situation as the the part is having very tiny hole like gaps for the flame to pass through. This part will stop the flame to pass and hence there will be pressure drop. I would like to simulate the same in either CFX or FLUENT. Any way i could do the same. How to mesh such a tiny hole? I am thinking to draft a single hole and import geometry in ansys for meshing. But will it be perfect way to find pressure drop across the part which is usually placed in a pipe?

October 26, 2017, 06:57		#3
jmex Member Jigs Join Date: Aug 2017 Location: Pune Posts: 39 Rep Power: 8	Is it possible to define that portion as porosity? If yes, then how can i find value of porosity knowing pressure drop from practical data?

October 30, 2017, 05:19		#6
Haidar Fakhri New Member Suraji Join Date: Mar 2016 Posts: 18 Rep Power: 10	The value will shown at u click on ur point. U can setting the variable what u want. In the probe will shown xyz, u can input on it