Certificate of Registration Media number Эл #ФС77-53688 of 17 April 2013. ISSN 2308-6033. DOI 10.18698/2308-6033
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Special features of pressure changes in the pipeline at its closing

Published: 05.03.2014

Authors: Bondarenko N.I., Terentiev Yu.I.

Published in issue: #1(25)/2014

DOI: 10.18698/2308-6033-2014-1-1176

Category: Engineering Sciences | Chapter: Theoretical Mechanics. Design of mechanisms and machines

The paper considers unsteady motion of ап idea/ compressible fluid in а homogeneous elastic tube, caused by the activation of the cut-off device. The stable difference scheme is used for solving the equations of motion and continuity of flow. The authors demonstrate the application of the scheme on a single-stranded pipeline in case of reducing the mass flow rate to zero for a given linear law. In the particular case it was found possible to stop pressure fluctuations of the fluid in the pipeline when it was fully closed. Generally, at any time of activation of the cut-off device, pressure changes in two possible ways, which are presented as two generalized graphic dependences.

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