[Other] Mesh for 2D axis symmetric wedge domain with stenosis

yy205001 · April 17, 2016, 12:38

Hi all,

Can anyone give me guidelines on how to create such a domain using blockmesh? (Please see attached picture) I am able to create the wedge domain, however I am unable to add the stenosis (reduction of cross section area).

Really appreciated for any help!

Bentley.

Kina · April 17, 2016, 13:37

I'd suggest you create three blocks:
1. upstream of the stenosis
2. stenosis
3. downstream

this way you can introduce the stenosis part with its block vertices and then under 'edges' define two arcs for the curved part (see arc in user guide).

shouldn't be too difficult. Don't forget the definition of the cyclic wall patches in case you haven't already done it.

Cheers
Alex

yy205001 · April 18, 2016, 06:12

Alex, Thank you! I will have a try on this and post my mesh if I can make it!

yy205001 · April 18, 2016, 08:53

Done! Thanks. However, I am using "polyLine" to put a cosine curve there

Kina · April 18, 2016, 10:32

I'm glad you got it to work! Depending on your number of coordinate points for the curve, "spline" may give you a little softer surface.

Cheers
Alex

April 17, 2016, 12:38	Mesh for 2D axis symmetric wedge domain with stenosis	#1
yy205001 New Member Bentley Lam Join Date: Apr 2016 Posts: 5 Rep Power: 10	Hi all, Can anyone give me guidelines on how to create such a domain using blockmesh? (Please see attached picture) I am able to create the wedge domain, however I am unable to add the stenosis (reduction of cross section area). Really appreciated for any help! Bentley.

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April 17, 2016, 13:37		#2
Kina Senior Member Alex Join Date: Jan 2014 Posts: 126 Rep Power: 12	I'd suggest you create three blocks: 1. upstream of the stenosis 2. stenosis 3. downstream this way you can introduce the stenosis part with its block vertices and then under 'edges' define two arcs for the curved part (see arc in user guide). shouldn't be too difficult. Don't forget the definition of the cyclic wall patches in case you haven't already done it. Cheers Alex

April 18, 2016, 06:12		#3
yy205001 New Member Bentley Lam Join Date: Apr 2016 Posts: 5 Rep Power: 10	Alex, Thank you! I will have a try on this and post my mesh if I can make it!

April 18, 2016, 08:53		#4
yy205001 New Member Bentley Lam Join Date: Apr 2016 Posts: 5 Rep Power: 10	Done! Thanks. However, I am using "polyLine" to put a cosine curve there

April 18, 2016, 10:32		#5
Kina Senior Member Alex Join Date: Jan 2014 Posts: 126 Rep Power: 12	I'm glad you got it to work! Depending on your number of coordinate points for the curve, "spline" may give you a little softer surface. Cheers Alex