moving ground BC?

ACER · June 18, 2012, 11:55

Hi everyone...

Could someone confirm If i could set a moving ground boundary condition in Starccm+, if its possible, how do i implement it?

thank you

abdul099 · June 18, 2012, 14:57

That's pretty simple. Just go to the boundary -> Physics Conditions -> Tangential Velocity Specification and set it to vector. Then you can go to the Physics Values and enter the velocity vector there.

ACER · June 19, 2012, 05:53

Quote:

Originally Posted by abdul099

That's pretty simple. Just go to the boundary -> Physics Conditions -> Tangential Velocity Specification and set it to vector. Then you can go to the Physics Values and enter the velocity vector there.

Hi Abdul099

Thanks for the reply....could you please be a bit more specific.Once i go into boundary>physics condition the only thing im offered is initial condition option...is there something else im missing....i would really appreciate if you could help me sort this out since ive spent quite sometimes trying to figure it out....

thank you

siara817 · June 21, 2012, 05:25

Dear ACER,
You need to go to a specific boundary ( such a wall) in your region that needs to be defined as a moving boundary.

mustafamokhtari · February 26, 2016, 07:40

Quote:

Originally Posted by abdul099

That's pretty simple. Just go to the boundary -> Physics Conditions -> Tangential Velocity Specification and set it to vector. Then you can go to the Physics Values and enter the velocity vector there.

hi .my difficult is wall move to x & y in dynamic mesh .can you help me????

Image url my problem:

http://s7.picofile.com/file/8240748726/udf.zip.html

mustafamokhtari · February 26, 2016, 07:41

Quote:

Originally Posted by siara817

Dear ACER,
You need to go to a specific boundary ( such a wall) in your region that needs to be defined as a moving boundary.

hi .my difficult is wall move to x & y in dynamic mesh .can you help me????

Image url my problem:

http://s7.picofile.com/file/8240748726/udf.zip.html

mustafamokhtari · February 26, 2016, 07:42

Quote:

Originally Posted by ACER

Hi Abdul099

Thanks for the reply....could you please be a bit more specific.Once i go into boundary>physics condition the only thing im offered is initial condition option...is there something else im missing....i would really appreciate if you could help me sort this out since ive spent quite sometimes trying to figure it out....

thank you

hi .my difficult is wall move to x & y in dynamic mesh .can you help me????

Image url my problem:

http://s7.picofile.com/file/8240748726/udf.zip.html

June 18, 2012, 11:55	moving ground BC?	#1
ACER New Member abishai murday Join Date: Dec 2010 Posts: 23 Rep Power: 15	Hi everyone... Could someone confirm If i could set a moving ground boundary condition in Starccm+, if its possible, how do i implement it? thank you

June 18, 2012, 14:57		#2
abdul099 Senior Member Join Date: Oct 2009 Location: Germany Posts: 636 Rep Power: 21	That's pretty simple. Just go to the boundary -> Physics Conditions -> Tangential Velocity Specification and set it to vector. Then you can go to the Physics Values and enter the velocity vector there. __________________ We do three types of jobs here: GOOD, FAST AND CHEAP You may choose any two!

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June 21, 2012, 05:25		#4
siara817 Senior Member siamak rahimi ardkapan Join Date: Jul 2010 Location: Copenhagen, Denmark Posts: 220 Rep Power: 17	Dear ACER, You need to go to a specific boundary ( such a wall) in your region that needs to be defined as a moving boundary.