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Unsteady flows in deformable pipes: the energy conservation law
A. T. Il'icheva, S. I. Sumskoib, V. A. Shargatovb a Steklov Mathematical Institute of Russian Academy of Sciences, ul. Gubkina 8, Moscow, 119991 Russia
b National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow, 115409 Russia
Abstract:
We derive a quasi-one-dimensional energy equation that corresponds to the flow of a compressible viscous fluid in a deformable pipeline. To describe the flow of such a fluid in a pipeline, we couple this equation with the previously derived continuity and momentum equations as well as with the equations of state for the internal energies of the fluid, the pipe deformations, pressure, and the cross-sectional area of the pipe. The derivation of the equations is based on averaging over the pipeline cross section. The equations obtained are designed for numerical simulations of long-distance transportation of a compressible fluid.
Received: October 28, 2017
Citation:
A. T. Il'ichev, S. I. Sumskoi, V. A. Shargatov, “Unsteady flows in deformable pipes: the energy conservation law”, Modern problems and methods in mechanics, Collected papers. On the occasion of the 110th anniversary of the birth of Academician Leonid Ivanovich Sedov, Trudy Mat. Inst. Steklova, 300, MAIK Nauka/Interperiodica, Moscow, 2018, 76–85; Proc. Steklov Inst. Math., 300 (2018), 68–77
Linking options:
https://www.mathnet.ru/eng/tm3865https://doi.org/10.1134/S0371968518010053 https://www.mathnet.ru/eng/tm/v300/p76
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Abstract page: | 228 | Full-text PDF : | 64 | References: | 32 | First page: | 9 |
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