update dynamic mesh failed. Negative cell volume detected

saif_uzair · April 1, 2017, 03:40

Hi guys,
I am doing simulation of pitching aerofoil(2D). When i am doing the preview mesh motion it gives an error of negative cell volume detected.

rsaurabh · April 4, 2017, 02:02

Try to decrease your time step.
Regards
Saurabh

Sandeep Reddy · May 31, 2017, 04:16

Quote:

Originally Posted by saif_uzair

Hi guys,
I am doing simulation of pitching aerofoil(2D). When i am doing the preview mesh motion it gives an error of negative cell volume detected.

Same problem with my simulation, I decreased time step, changed mesh but nothing worked. Did you get any solution?

saif_uzair · May 31, 2017, 04:41

Hi,
In dynamic mesh ,smoothing settings, select diffusion method and give diffusion parameter as 1.

Sandeep Reddy · May 31, 2017, 04:48

Quote:

Originally Posted by saif_uzair

Hi,
In dynamic mesh ,smoothing settings, select diffusion method and give diffusion parameter as 1.

Hi Saif,

I already did that. I have attached screen shot, If you don't mind if you have that project with you can you send me that.

saif_uzair · May 31, 2017, 04:50

Your email Id.

Sandeep Reddy · May 31, 2017, 04:51

Quote:

Originally Posted by saif_uzair

Your email Id.

chittisandeepreddy@gmail.com

Sandeep Reddy · May 31, 2017, 04:55

Quote:

Originally Posted by saif_uzair

Your email Id.

You can be completely sure that I will not use your project file for any personal use. I would just check the way meshing is done. Please send me project file and design, I am really glad you are considering to send me the file. I have submitted 10 posts till now and I never got positive reply other than yours. Thank You very much Saif.

Sandeep Reddy · May 31, 2017, 05:11

Quote:

Originally Posted by saif_uzair

Your email Id.

Hi Saif,

Thank You for sending the file but it is missing the design and some other data. But still thank you for sending me.

saif_uzair · May 31, 2017, 05:16

Its just the case file.

Sandeep Reddy · May 31, 2017, 05:18

Quote:

Originally Posted by saif_uzair

Its just the case file.

Ya I got that.

casseer15 · February 13, 2018, 23:31

Hello,

I get the same error.
Update-Dynamic-Mesh failed. Negative cell volume detected.
I'm trying to simulate a fan in a room with sliding mesh method. I have not enabled dynamic mesh option. But i get the same error.

Any Solution?

Thanks in Advance.

April 1, 2017, 03:40	update dynamic mesh failed. Negative cell volume detected	#1
saif_uzair New Member saif Join Date: Mar 2017 Posts: 7 Rep Power: 9	Hi guys, I am doing simulation of pitching aerofoil(2D). When i am doing the preview mesh motion it gives an error of negative cell volume detected.

May 31, 2017, 04:41	@Sandeep Reddy	#4
saif_uzair New Member saif Join Date: Mar 2017 Posts: 7 Rep Power: 9	Hi, In dynamic mesh ,smoothing settings, select diffusion method and give diffusion parameter as 1.

May 31, 2017, 04:50	@Sandeep Reddy	#6
saif_uzair New Member saif Join Date: Mar 2017 Posts: 7 Rep Power: 9	Your email Id.

May 31, 2017, 05:16	@Sandeep Reddy	#10
saif_uzair New Member saif Join Date: Mar 2017 Posts: 7 Rep Power: 9	Its just the case file.

February 13, 2018, 23:31	I get the same error.	#12
casseer15 New Member Dilshan Casseer Join Date: Jan 2018 Posts: 15 Rep Power: 8	Hello, I get the same error. Update-Dynamic-Mesh failed. Negative cell volume detected. I'm trying to simulate a fan in a room with sliding mesh method. I have not enabled dynamic mesh option. But i get the same error. Any Solution? Thanks in Advance.

April 4, 2017, 02:02		#2
rsaurabh Member saurabh kumar gupta Join Date: Jul 2016 Location: kanpur,india Posts: 53 Rep Power: 9	Try to decrease your time step. Regards Saurabh

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
how to set periodic boundary conditions	Ganesh	FLUENT	15	November 18, 2020 06:09
negative cell volume detected in dynamic meshing	engrmansoor2534	FLUENT	0	November 6, 2015 10:34
[ICEM] Negative volume error in hybrid mesh	siw	ANSYS Meshing & Geometry	4	September 3, 2014 05:25
Moving mesh	Niklas Wikstrom (Wikstrom)	OpenFOAM Running, Solving & CFD	122	June 15, 2014 06:20
Initial conditions for uniform flow	andreas	OpenFOAM	5	November 16, 2012 15:00