If your variable velocity can be represented by a series of constant values at specific time intervals, you can define a piecewise constant inlet boundary condition in SimScale. Here's the approach:
- Divide the total simulation time into smaller time steps where the inlet velocity can be considered constant.
- Set up a transient simulation in SimScale.
- Under the boundary conditions section, define an inlet for the fluid domain.
- In the inlet properties, you can specify the velocity value for each time step. SimScale will apply the specified velocity throughout that time interval.