Hello there,
I have another question regarding the particle tracing module. I have a model consisting of a Laminar Flow (chns) and a Particle Tracing for Fluid Flow (fpt) interfaces. Assume that I solve first the fluid flow without solving for the particles’ position and that my inlet flow rate is periodic (let’s say with period is one second). I then introduce on the inlet a distribution of particles that are released every 0.1 s and I run the particle tracing for one period. My problem comes when I want to restart the simulation for the particle tracing in order to calculate the fate of the particles during the next 1 second – now I have the particles that were already in the domain at the end of the previous calculation plus the ones that are released every 0.1 s during this new calculation. I cannot figure out how to do that, simply saying to the solver to use as initial condition the previous solution gives an error in the stiffness matrix.
Anyone has an idea?
Thanks in advance, J
I have another question regarding the particle tracing module. I have a model consisting of a Laminar Flow (chns) and a Particle Tracing for Fluid Flow (fpt) interfaces. Assume that I solve first the fluid flow without solving for the particles’ position and that my inlet flow rate is periodic (let’s say with period is one second). I then introduce on the inlet a distribution of particles that are released every 0.1 s and I run the particle tracing for one period. My problem comes when I want to restart the simulation for the particle tracing in order to calculate the fate of the particles during the next 1 second – now I have the particles that were already in the domain at the end of the previous calculation plus the ones that are released every 0.1 s during this new calculation. I cannot figure out how to do that, simply saying to the solver to use as initial condition the previous solution gives an error in the stiffness matrix.
Anyone has an idea?
Thanks in advance, J