# How to set current

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 November 19, 2014, 23:03 How to set current #1 New Member   Guo Join Date: Nov 2014 Posts: 2 Rep Power: 0 Hi, I have kown how to set wave boundary and add current velocity. But when I run simulation, the current velocity that I have setted is disappeared. And the result does not concluded the influence induced by current. However, if I set current velocity in specified velocity, the result will be affected. My problem is that the result with current is not stabilized. If the current is positive, the free surface elevation is obvious exceeding the setting value. If the current is negative, the free surface elevation is obvious under the setting value. Could you tell me how to set current? Thanks

November 25, 2014, 03:22
#2
New Member

jason
Join Date: Mar 2014
Posts: 15
Rep Power: 5
Quote:
 Originally Posted by Jendge Hi, I have kown how to set wave boundary and add current velocity. But when I run simulation, the current velocity that I have setted is disappeared. And the result does not concluded the influence induced by current. However, if I set current velocity in specified velocity, the result will be affected. My problem is that the result with current is not stabilized. If the current is positive, the free surface elevation is obvious exceeding the setting value. If the current is negative, the free surface elevation is obvious under the setting value. Could you tell me how to set current? Thanks
Flow 3d provides users 10 boundaries. the wave boundary just induces wave merely, but the wave can be any kind of waves provided or affected by current.if you employ wave boundary, no velocity can be added in such boundary.
if you want the current and wave enter the computational domain, perhaps you can use wave boundary and source( simulate the entrance of current).

November 25, 2014, 08:45
Thank you very much, jason_sjtu
#3
New Member

Guo
Join Date: Nov 2014
Posts: 2
Rep Power: 0
Quote:
 Originally Posted by jason_sjtu Flow 3d provides users 10 boundaries. the wave boundary just induces wave merely, but the wave can be any kind of waves provided or affected by current.if you employ wave boundary, no velocity can be added in such boundary. if you want the current and wave enter the computational domain, perhaps you can use wave boundary and source( simulate the entrance of current).
Sorry, I'm a newcomer. Could you detailedly tell me what is wave boundary and source? Whether or not you mean that let me set a wave boundary and add a source file.
By the way, I saw your last name is sjtu. Do you study in Shanghai Jiaotong Univercity? My major is geotechincal engineering and I am a graduate student in Shanghai Jiaotong Univercity. If you are a sjtuer, can I contact with you. My telephone is 15121131308.
Thank you once again.

 November 25, 2014, 19:48 #4 New Member   jason Join Date: Mar 2014 Posts: 15 Rep Power: 5 qq 1171646024

 Tags current velocity, flow3d

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