05 August 2018
- Last edited 05 August 2018
You can use Fluid - Structure interaction if you want to model the movement / deformation of the tarp due to the motion of wind. You have to solve the air flow (external) and estimate the forces on the tarp due to the this flow. You should be able to do this using a FSI mode. You could either use one or two way coupling depending on the complexity of your model set-up. If you decide that the deformation due to the tarp is going to impact the fluid flow, I recommend you use a two-way coupling. I'd strongly recommend that you start with a one-way coupling and move to two-way later. I have attached two videos which should help you understand the set-up.
About modeling the gas leakage, you can first treat this gas as air. This way you will have simplified the problem by avoiding using two fluids in your simulation. Once you obtain some satisfactory results, you can try and change this fluid. I'd recommend you use a 2D approximation first before testing out a 3D case. I'd also recommend that you conduct a brief literature review. You might be able to find a simpler model to start with.
I hope this provides you with a starting point.