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Variable Volume Piston Chamber Test Rig

This example shows a rig that contains two variable volume piston chambers subjected to a series of abrupt pressure changes from 0 to 2 MPa and back. Each chamber is installed between two equal fixed-area orifices. The top chamber is set to increase its volume with the piston motion in positive direction, while the bottom chamber volume decreases at the same time.

The chamber behavior is assessed by observing pressure and flow rate variation at the chamber inlet.

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