I guess the reason for using Fourier series to approximate inflow data is to create a periodic inflow condition. You can modify the bct.dat to impose the nodal velocity. My understanding is that discretized numerical schemes usually will not give you a perfect conservation and unlike finite volume s...

If you don't want the solver to process your inflow data, you may manually modify bct.dat file to impose the desired nodal velocities. It has the following form: np nl x1 y1 z1 nl nn vx1 vy1 vz1 t1 . . . . . . . . . . . . vxnl vynl vznl tnl . . . . . . . . . . . . xnp ynp znp nl vx1 vy1 vz1 t1 . . ....

I think timeDeriv is the acceleration, dv/dt and the vinplane_traction is the traction vector of viscous stress tensor, \tau=\mju(\nabla vec{u}+(\nabla vec{u})^T)vec{u}. Risidual based and velocity based tractions differ. The residual based traction utilizes the wall traction term in the CMM variati...

You can take a look at the outlets with almost 0 pressures. Use the mean outflow rate to multiple outlet resistance. If the outlet pressure doesn't match with QxR, the outflow boundary condition is not correctly prescribed. You can check all outlet faces are correctly tagged in the svpre file and th...

Yes, I can take a look if you could share the files (restart, geombc, bct.dat, solver.inp, svpre file,mesh-complete etc) via google drive.

With the resistance boundary condition, the outlet pressure should be equal to outflow*resistance value. If p doesn't match with Q*R, it may suggest the boundary condition was not correctly imposed. In addition, you can also check if the model length, flow, resistance value , viscosity and density a...

Yes, we can take a look at your data. Please make sure that the coronary demo case can run and produce physiologic pressure/flow on your desktop.

I just ran the coronary project pulsatile simulation. The average pressure is ~ 100 mmHg and flow looks normal to me. I am surprised that the pressure was not correct in the demo case you ran. Do other demo cases work on your machine?

How about taking a step back? Use your own software and procedure to generate a time-dependent bct.dat with a parabolic profile and make sure it is identical to the bct.dat file generated by SV. Then make a steady inflow file with a nonidealized profile (customized nodal velocities). Do they work?

Can you confirm you can run the SV coronary project without any issue? Compared to the demo model, do your model size, cardiac output and the number of coronary arteries differ significantly? If they are quite similar, the BCs taken from the demo may work for your model. Otherwise, instead of using ...