Accounting for Flow Discontinuities While Water Hammers at Engineering Stage of Pressure Pipelines Made of Polymeric Materials

Ol&#039;ga G. Kapinos; Nadezhda Tvardovskaya

doi:10.20295/1815-588X-2022-19-1-116-126

UDC

621.644 628.14

ACCOUNTING FOR FLOW DISCONTINUITIES WHILE WATER HAMMERS AT ENGINEERING STAGE OF PRESSURE PIPELINES MADE OF POLYMERIC MATERIALS Accounting for Flow Discontinuities While Water Hammers at Engineering Stage of Pressure Pipelines Made of Polymeric Materials

АА Аа

Published in Proceedings of Petersburg Transport University · Pages 116–126 · Rubric: GENERAL TECHNICAL PROBLEMS AND SOLUTION APPROACH

DOI: https://doi.org/10.20295/1815-588X-2022-19-1-116-126

Received: 24.03.2022 Accepted: 24.03.2022 Published: 24.03.2022

Authors

Ol'ga G. Kapinos

Nadezhda Tvardovskaya

Ol'ga G. Kapinos

Academic degree: candidate of technical sciences

Science rang: docent

Emperor Alexander I Petersburg State Transport University Russian Federation

Nadezhda Tvardovskaya

Academic degree: candidate of technical sciences

Science rang: docent

Emperor Alexander I Petersburg State Transport University Russian Federation

ABSTRACT

Purpose: To show the need to clarify calculation dependencies in regulatory documents for determining the parameters of water hammer in pressure pipelines when using polymeric pipes. To substantiate the methods to calculate hydraulic shock for such pipelines taking into account the appearance possibility of flow discontinuities. To present the main methods aimed at prevention and minimization of the negative consequences of water hammers. Methods: Comparison of various methods for the calculation of parameters of water hammer. To describe the process of water hammer the mathematical method of analysis of infinitesimals and characteristic method are used. Results: It is shown that it is necessary to carry out at engineering stage of pressure systems using pipes made of polymeric materials the verification calculations for water hammer taking into account the appearance possibility of flow discontinuities there and to reflect it correspondingly in a normative literature. Practical importance: The results of the work are recommended to be taken into account when carrying out verification calculations of pressure pipelines made of polymeric materials in case of water hammer occurrence including with a break in flow continuity and developing the measures to prevent such phenomena.

KEYWORDS

engineering, pressure pipelines, polymeric materials, water hammer, flow continuity, flow discontinuity, method of characteristics

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GOST

Kapinos O. G., Tvardovskaya N. V. Accounting for Flow Discontinuities While Water Hammers at Engineering Stage of Pressure Pipelines Made of Polymeric Materials // . 2022. pp. 116-126. DOI: https://doi.org/10.20295/1815-588X-2022-19-1-116-126. (Date of access 19.08.2026).

MLA

Ol'ga G. Kapinos, Tvardovskaya N. V.. "Accounting for Flow Discontinuities While Water Hammers at Engineering Stage of Pressure Pipelines Made of Polymeric Materials." (2022): 116-126. DOI: https://doi.org/10.20295/1815-588X-2022-19-1-116-126.

APA

Kapinos O. G., Tvardovskaya N. V. (2022). Accounting for Flow Discontinuities While Water Hammers at Engineering Stage of Pressure Pipelines Made of Polymeric Materials. , 116-126. https://doi.org/10.20295/1815-588X-2022-19-1-116-126

Chicago

Ol'ga G. Kapinos, Tvardovskaya N. V.. "Accounting for Flow Discontinuities While Water Hammers at Engineering Stage of Pressure Pipelines Made of Polymeric Materials." , no. (2022): 116-126. https://doi.org/10.20295/1815-588X-2022-19-1-116-126.

WIKI

{{cite journal | author = Kapinos O. G., Tvardovskaya N. V. | title = Accounting for Flow Discontinuities While Water Hammers at Engineering Stage of Pressure Pipelines Made of Polymeric Materials | journal = | year = 2022 | pages = 116-126 | doi = 10.20295/1815-588X-2022-19-1-116-126 }}

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ACCOUNTING FOR FLOW DISCONTINUITIES WHILE WATER HAMMERS AT ENGINEERING STAGE OF PRESSURE PIPELINES MADE OF POLYMERIC MATERIALS Accounting for Flow Discontinuities While Water Hammers at Engineering Stage of Pressure Pipelines Made of Polymeric Materials

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