Hi
A few comments on latest model:
You have too many "prescribed displacements, no need to say something along the "r" direction of the axis of symmetry, as this defines dr=0 by default
Your solid is only held by 2 points, that is "bad" practice, I would propose that you block in z&r the two vertical inlet and outlet regions of the structural wall (vertical lines)
You cannot have a pressure inlet, no outlet and enforce a "0" pressure inside the fluid that is "physically incorrect
Because of the dependent variable naming convention I do NOT believe your FSi initial condition is being copied over from the SPF, and further with no outflow the SPF will not work
then for the laminar inflow entrance pressure, read carefully the doc:
"If Entrance pressure is selected, enter the Entrance pressure p_entr (SI unit: Pa) at the entrance of the fictitious channel outside of the model."
You need to take into account the 1m inflow tube w.r.t. pressure drop values, as you have no outlet.
Again the no outlet get me to ask the question, then why choosing the fluid at all ? just model the structural with a variable pressure value on the inside wall, you get the same "physical" effect.
It's often worth to sit down and sketch out a given problem, define the physics and the dependent variables + interactions on a piece of paper, or even better, with a second or two other persons to get a discussion going, then one find often simpler ways to get to the same result
--
Good luck
Ivar
A few comments on latest model:
You have too many "prescribed displacements, no need to say something along the "r" direction of the axis of symmetry, as this defines dr=0 by default
Your solid is only held by 2 points, that is "bad" practice, I would propose that you block in z&r the two vertical inlet and outlet regions of the structural wall (vertical lines)
You cannot have a pressure inlet, no outlet and enforce a "0" pressure inside the fluid that is "physically incorrect
Because of the dependent variable naming convention I do NOT believe your FSi initial condition is being copied over from the SPF, and further with no outflow the SPF will not work
then for the laminar inflow entrance pressure, read carefully the doc:
"If Entrance pressure is selected, enter the Entrance pressure p_entr (SI unit: Pa) at the entrance of the fictitious channel outside of the model."
You need to take into account the 1m inflow tube w.r.t. pressure drop values, as you have no outlet.
Again the no outlet get me to ask the question, then why choosing the fluid at all ? just model the structural with a variable pressure value on the inside wall, you get the same "physical" effect.
It's often worth to sit down and sketch out a given problem, define the physics and the dependent variables + interactions on a piece of paper, or even better, with a second or two other persons to get a discussion going, then one find often simpler ways to get to the same result
--
Good luck
Ivar