[kuprat]

I'm injecting particles into a geometry using MPPICFoam (OpenFOAM-7) and the standard tutorial injection velocity is zero:
constant/kinematicCloudProperties:

subModels
{
injectionModels
{
inletInjection
{
type patchInjection;

U0 (0 0 0);
etc.

However, I want to inject particles at the continuum fluid velocity (U.air). When I replace the relevant line above with
U0 U.air;
it gives an error because it is looking for a '(' character. Is there some way of injecting at fluid velocity U.air?
Andrew

[balloon]

Is there a solution to this question? Thanks

[alainislas]

Dear balloon,

Please note that the particle injection velocity should be specified in vector format, i.e., (# # #). If you want the particles to have the same initial velocity as the carrier, just input the same value as the one defined in 0/U.air.