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How to build a Wavy wall using "COMSOL Geometry "

Posted 22 mag 2016, 03:12 GMT-4 Heat Transfer & Phase Change, Geometry Version 4.4, Version 5.0 6 Replies

Shantanu Datta
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Dear All
I am pretty new to COMSOL and I am working on Natural Convection In Cavities which is having either one wall or multiple wall having a simple Sinusoidal wavy profile or which might be having an equation .
I am attaching a sketch of a square cavity with a wavy wall for All for better understanding.
Does any body know how to build this by using COMSOL Geometry?
Thanks in Advance

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6 Replies Last Post 24 mag 2016, 09:59 GMT-4
Lasse Murtomäki
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Posted: 9 years ago 23 mag 2016, 06:40 GMT-4
How about this? 3D model, a work plane at z = 0.

1. Draw a parametric curve:
parameter s
xw = s
yw = 0.001*sin(10*pi*s) + 0.002

2. Draw an open polygon:
xw = {0, 0, 0.1, 0.1}
yw = {0.002, 0.1, 0.1, 0.002}

3. Convert to solid:
Input objects are these two curves.

4. Extrude workplane by 0.01 m.

Done.


BR
Lasse
How about this? 3D model, a work plane at z = 0. 1. Draw a parametric curve: parameter s xw = s yw = 0.001*sin(10*pi*s) + 0.002 2. Draw an open polygon: xw = {0, 0, 0.1, 0.1} yw = {0.002, 0.1, 0.1, 0.002} 3. Convert to solid: Input objects are these two curves. 4. Extrude workplane by 0.01 m. Done. BR Lasse

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Shantanu Datta
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Posted: 9 years ago 23 mag 2016, 14:37 GMT-4
THANK YOU SO MUCH!!! CAN I MODEL A TRIANGULAR ENCLOSURE(fig attached) By this same method?
THANK YOU SO MUCH!!! CAN I MODEL A TRIANGULAR ENCLOSURE(fig attached) By this same method?

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Lasse Murtomäki
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Posted: 9 years ago 23 mag 2016, 15:02 GMT-4
Of course, just replace polygon with an open triangle.

Br
Lasse
Of course, just replace polygon with an open triangle. Br Lasse
Lasse Murtomäki
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Posted: 9 years ago 23 mag 2016, 15:29 GMT-4
Like this. Note also fillets.

Lasse
Like this. Note also fillets. Lasse

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Shantanu Datta
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Posted: 9 years ago 24 mag 2016, 07:39 GMT-4
THANKS SO MUCH!!! > BUT IF I WANT TO DO IT BY 2-D THEN DO I FOLLOW THE SAME PROCEDURE?
THANKS SO MUCH!!! > BUT IF I WANT TO DO IT BY 2-D THEN DO I FOLLOW THE SAME PROCEDURE?
Lasse Murtomäki
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Posted: 9 years ago 24 mag 2016, 09:59 GMT-4
Sure.
Sure.

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