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January 25, 2013, 16:06 |
Use PointWise to create a wavy wall
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#1 |
New Member
Hope
Join Date: Oct 2012
Posts: 8
Rep Power: 13 |
Hi. I am using PointWise to create a wavy wall in my project. I need to let the air flow through a long pipe, first part is a almost smooth wall with roughness=100nm, the second part is connected with the first part and the wall is a "wavy" one. The function looks like 0.05sin(100x) or something (I am not sure). And I plan to use CFX to do the calculation. Is there any way to build the "wavy" wall's geometry and mesh in PointWise?
Thank you! Li |
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January 26, 2013, 21:42 |
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#2 |
Senior Member
Chris Sideroff
Join Date: Mar 2009
Location: Ottawa, ON, CAN
Posts: 434
Rep Power: 22 |
There is no analytic sine function in Pointwise. There are some more general curve drawing tools (Catmull-Rom, Akima, Bezier) as well as a conic curve that you could use to approximate a sine curve.
If you're looking for an actual sine curve you'd have to write a Glyph script to generate a discrete approximation to a sine curve using a series of segments. Of course the more segments the better the approximation. Let me know if you need help with a script to do that. -Chris |
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January 27, 2013, 10:59 |
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#4 |
New Member
Hope
Join Date: Oct 2012
Posts: 8
Rep Power: 13 |
Thank you cnsidero and Far. I may try Far's method first because it seems easier to me.
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February 15, 2020, 17:57 |
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#5 | |
New Member
Geoff
Join Date: Dec 2019
Posts: 2
Rep Power: 0 |
Quote:
I have tried creating a sine wave in excel and saving it as a .csv file, converting this to a .dat in notepad++ and importing this as a grid and as a database, but this hasn't worked. |
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February 27, 2020, 13:57 |
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#6 |
Senior Member
Zach Davis
Join Date: Jan 2010
Location: Los Angeles, CA
Posts: 101
Rep Power: 16 |
I think you just create a segment file which has a single header with the first line having a single integer representing the number of points in the file followed by the x-, y-, and z-coordinates for each point. LIke this...
2 1.000 5.000 3.000 7.500 2.250 5.128 Save the file with a *.dat extension, and then just import it with File -> Import Database |
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March 4, 2020, 17:24 |
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#7 |
New Member
Geoff
Join Date: Dec 2019
Posts: 2
Rep Power: 0 |
THanks, for the reply, I think I tried this at one point but couldn't get it to work.
In the end I imported a solidworks database of a sine wave and constrained connectors to it. |
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