[ddungntu]

Dear all,

Thank you very much for your time and energy to give me your kind help.

I am trying to simulate the water block hitting a steel plate with velocity =4 m/s, using Ansys CFX (2-way FSI). I am interested in solution of pressure acting on steel plate and plate deformation.
To simulate this problem, I applied two-phase problem by introducing volume fraction of air and water. Then I applied the initial velocity=4 m/s to the water block, and 0 m/s for air domain. I defined all sides of fluid domain except for top of air domain as no slip wall, for the top of air domain defined as openning boundary with open pressure=0 Pa.
But unfortunately, the results of pressure and deformation obtained are small compared to what I expected.
I do not know what is wrong in my model.

Could you please correct me about boundary condition and initial conditions or other aspects to improve my solution?

Best regards,
Dac Dung