The initialization fluid cannot be stationary

[LHJ205]

scene.fluidBlocks.append(
    Scenes.FluidBlock(id='Fluid', boxMin=[-3., 0, -3.], boxMax=[3., 0.25, 3.], translation=[0., 0., 0.]))
scene.boundaryModels.append(
    Scenes.BoundaryData(meshFile="../models/UnitBox.obj", translation=[0., 10.0, 0.], scale=[6, 20., 6],

I hope the fluid is in a static state inside the rigid body, but I cannot do it. How can I modify it