Flow of Water Past a Flexible Rubber Membrane

In this case we imagine a rubber membrane that is deflected by water flowing through a gap in the membrane. We follow the flow of the water. In the diagrams, the flow direction is upward. The arrows in the left hand picture below show the velocity of the fluid. The colour contours on the right show streamlines. It can be seen from the figure below left that the flow recirculates downstream of the membranes.



(Click on each picture to show full size)


In addition to flow analysis, we can also follow the deflection of the membrane, and work out how the increasing deflection affects the flow. The diagram below shows colour contours of stress in the deflected membrane. We can similarly follow moving pistons and vanes in valves and pumps; and show how fluid flow and pressure affect the design of the product.

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What is Finite

Element Analysis?

Is It Reliable?

How Long Does It Take?

Beam Deflection
Computational Fluid Dynamics
Manufacturing Processes

Is it Expensive?

Why is it Called

Finite Element Analysis?

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What Can We Simulate:

Computational Fluid Dynamics