[DesignModeler] How to Determine flow domain?

anonymousone1895 · March 3, 2019, 10:52

Hi Everyone,
I am new to the cfd. so I have started small. I am trying to simulate supersonic flow over a wedge. the half angle is 20 degrees. I can't figure out to set the dimensions for the flow domain like inlet outlet and far field and my wedge dimension is one meter. please help and thanks in advance. how to take the dimensions?

Roh · March 4, 2019, 10:26

What's your problem exactly? There are many toturials on the net that you can follow.

Светлана · March 4, 2019, 22:26

You will need to mesh the external domain.

Its size depends on the wedge geometry, the fluid properties, and the velocity of the fluid. If you specify these in reply, someone will be able to assist you.

Often you can find this by searching for existing published literature as they have many geometries already available as benchmark cases.

anonymousone1895 · March 8, 2019, 20:34

My wedge is of length 1 meter with a half angle of 20 degrees. Static pressure, static temperature and mach number behind shock wave are 1atm, 300K , 4.

anonymousone1895 · March 16, 2019, 09:55

can anyone reply please?

March 3, 2019, 10:52	How to Determine flow domain?	#1
anonymousone1895 New Member anonymousone1895 Join Date: Mar 2019 Posts: 3 Rep Power: 7	Hi Everyone, I am new to the cfd. so I have started small. I am trying to simulate supersonic flow over a wedge. the half angle is 20 degrees. I can't figure out to set the dimensions for the flow domain like inlet outlet and far field and my wedge dimension is one meter. please help and thanks in advance. how to take the dimensions?

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March 4, 2019, 10:26		#2
Roh Senior Member Join Date: Sep 2017 Posts: 130 Rep Power: 8	What's your problem exactly? There are many toturials on the net that you can follow.

March 4, 2019, 22:26		#3
Светлана Senior Member Svetlana Tkachenko Join Date: Oct 2013 Location: Australia, Sydney Posts: 407 Rep Power: 14	You will need to mesh the external domain. Its size depends on the wedge geometry, the fluid properties, and the velocity of the fluid. If you specify these in reply, someone will be able to assist you. Often you can find this by searching for existing published literature as they have many geometries already available as benchmark cases.

March 8, 2019, 20:34		#4
anonymousone1895 New Member anonymousone1895 Join Date: Mar 2019 Posts: 3 Rep Power: 7	My wedge is of length 1 meter with a half angle of 20 degrees. Static pressure, static temperature and mach number behind shock wave are 1atm, 300K , 4.

March 16, 2019, 09:55		#5
anonymousone1895 New Member anonymousone1895 Join Date: Mar 2019 Posts: 3 Rep Power: 7	can anyone reply please?