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-   -   Injection (https://www.cfd-online.com/Forums/fluent/44053-injection.html)

Daniel March 9, 2007 03:52

Injection
 
Hello,

I am trying to model the erosion in a 90 degree elbow. However I am having difficulties with applying injections. When I set an injection I then iterate the programme, but when I go to Report - DPM - sample, FLUENT informs me that all of my particles are incomplete. What does this mean?

Please can you help,

Thank you Daniel

Allan Walsh March 9, 2007 13:07

Re: Injection
 
When you graphically track the particles, what happens? Do they stop in the middle of the fluid domain?

You should be able to increase the number of time steps or increase the step length (in the model->DP set-up) to fix this.

Daniel March 9, 2007 13:15

Re: Injection
 
Hi Allan,

Thank you for your help. The particles do not even enter the flow for some reason. Do I have to set the solver to a unsteady time domain?

Thanks

kk March 9, 2007 16:12

Re: Injection
 
1.check you inlet 'escape' or 'reflect'? 2.do as Allan said, increase the steps.

SA March 10, 2007 01:58

Re: Injection
 
ll


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