Pressure differential across tube or channel due to change in fluid velocity
The Fluid Inertia block models pressure differential, due to change in fluid velocity, across a fluid passage of constant cross-sectional area. The pressure differential is determined according to the following equation:
Use this block in various pipe or channel models that require fluid inertia to be accounted for.
The block positive direction is from port A to port B. This means that the flow rate is positive if it flows from A to B.
Fluid passage cross-sectional area. The default value is 8e-5 m^2.
Length of the fluid passage. The default value is 1 m.
Initial flow rate through the passage. This parameter specifies the initial condition for use in computing the block's initial state at the beginning of a simulation run. For more information, see Initial Conditions Computation. The default value is 0.
Use the Variables tab to set the priority and initial target values for the block variables prior to simulation. For more information, see Set Priority and Initial Target for Block Variables.
Parameter determined by the type of working fluid: