hi, i 'm working with injections on surface!how to specify the number of injections? thanks

I don't think you can.

All it ever did for me was start a particle at each centroid of each facet.

R.

thanks but i think it 's possible: a colleague worked on the same think,i have his work and in the same conditions he put more injections! the pb i can't contact him!t'll try and if it's ok i'll tell you!

If I have understood your requirement correctly I would like to suggest you that you can use file injection with a specific format. User manual gives necessary information. For ready reference an example is given below. All the values should be in SI units.

((x y z u v w dia temp mass) INJECTION_NAME) e.g. ((0.00E+00 1.36E-02 4.25E-03 0 0 0 0.0005 298 2.817E-04) INJ01)

You can enlist as many points one below another and save the file as a text file. And read through Define-Injections panel. Hope this will solve your problem.

thanks a lot