5. Sealing a two-phase fluid
5.1 Influence of phase change on the pressure field
Let's take the example of figure 4 where the packing consists of two parallel discs spaced h apart. We'll assume that a fluid flows from the outer radius where pe = 1 MPa to the inner radius where pi = 0.1 MPa. We'll make the assumption that the flow rate is small and therefore the phase change occurs discretely. Let us denote psat the vaporization pressure or saturation vapor pressure of the fluid. If psat < pi, then the entire film is liquid, and we can express the...
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Sealing a two-phase fluid
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