[ANSYS Meshing] Surface grid-extrusion technique?

monali2015m · March 17, 2021, 15:46

I have been looking for a sub-validation that is using a coupling approach -which is preferred in indoor natural ventilation, I tried to keep it simple since I am still learning so I settled with this case.

Cross-ventilation in a generic isolated building equipped with louvers:
Wind-tunnel experiments and CFD simulations

all the information that will allow me to re-create the case is available,
I created the geometry using grasshopper (so I can experiment with it later)

[IMG]file:///C:/Users/Mona's/Pictures/CFD.png[/IMG]

my issue is with the meshing the article kept referring to the surface grid-extrusion technique proposed by van Hooff and Blocken.

Coupled urban wind flow and indoor natural ventilation modeling on a high-resolution grid: A case study for the Amsterdam ArenA stadium

I read the previous article, still don't understand how it was done. and most cases that I found using the coupled approach keep referring to the Surface grid-extrusion technique.

so, please help (I am an architectural student so it was very hard and it took forever to reach this states, I'll be very grateful for any help )

Eubo · September 21, 2022, 01:20

Hi,

Were you able to find an answer to your post? I have the same question!
Thanks for the help!

Gert-Jan · September 21, 2022, 03:13

What is so special about this? This mesh can be generated in the Workbench mesher using the Method Sweep. Select a volume > Right-click to insert method > Select Sweep.

Note that this only works if the volume is sweepable. You can check this by:
Right-click on Mesh > Show > Sweepable Bodies.
If a volume is sweepable, then it will highlight Green.

March 17, 2021, 15:46	Surface grid-extrusion technique?	#1
monali2015m New Member menoufia Join Date: Mar 2021 Posts: 6 Rep Power: 5	I have been looking for a sub-validation that is using a coupling approach -which is preferred in indoor natural ventilation, I tried to keep it simple since I am still learning so I settled with this case. Cross-ventilation in a generic isolated building equipped with louvers: Wind-tunnel experiments and CFD simulations all the information that will allow me to re-create the case is available, I created the geometry using grasshopper (so I can experiment with it later) [IMG]file:///C:/Users/Mona's/Pictures/CFD.png[/IMG] my issue is with the meshing the article kept referring to the surface grid-extrusion technique proposed by van Hooff and Blocken. Coupled urban wind flow and indoor natural ventilation modeling on a high-resolution grid: A case study for the Amsterdam ArenA stadium I read the previous article, still don't understand how it was done. and most cases that I found using the coupled approach keep referring to the Surface grid-extrusion technique. so, please help (I am an architectural student so it was very hard and it took forever to reach this states, I'll be very grateful for any help )

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September 21, 2022, 01:20		#2
Eubo New Member Join Date: Sep 2022 Posts: 5 Rep Power: 3	Hi, Were you able to find an answer to your post? I have the same question! Thanks for the help!

September 21, 2022, 03:13		#3
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,827 Rep Power: 27	What is so special about this? This mesh can be generated in the Workbench mesher using the Method Sweep. Select a volume > Right-click to insert method > Select Sweep. Note that this only works if the volume is sweepable. You can check this by: Right-click on Mesh > Show > Sweepable Bodies. If a volume is sweepable, then it will highlight Green.