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This paper presents a one-dimensional model for the transient liquid flow (without cavitation) in constant diameter pipes. The system equations, which describe the macroscopic thermo-mechanical behavior of the pipe-flow system, are obtained within the framework of the continuum mechanics and classical thermodynamics. The flow problem is formulated as an inverse problem. Experimental data, concerning...
Within the framework of one-dimensional unsteady compressible flow in deformable pipes, the present work proposes expressions able to represent the stress state of a “fluid-pipe” continuous system. The coefficients needed to define the friction forces are calibrated against experimental results. The proposed expressions highlight the crucial role played by the fluid compressibility on the wave resistance.
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