FLUID TRANSIENTS IN A PIPELINE WITH ONE END OPEN
Abstract
Water hammer during multi-phase flow is rather complex, but in some cases an upper limit to the pressure surge magnitude during water hammer can be estimated. In the case considered here, a two mile long pipeline with a single high point was permitted to partially drain. Due to gravitational effects, air bubbles up through the pipe line to its highest point, but the time required for air to reach the top of the pipe is rather long. Consequently, some transients caused by valve operations are affected by air entrapment and some are not. The intent of this research was to investigate the complex interactions between air, water vapor, and liquid during water hammer in a long pipe with one end of the pipe open to atmospheric conditions. To understand the system dynamics, experimental data was obtained from a long pipeline with an open end and also from a short, transparent tube. Transient calculations were performed for valve closures and pump operations as applicable. The limitations of available calculation techniques were considered in detail.
- Authors:
- Publication Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 933164
- Report Number(s):
- PVP2008-61130
TRN: US200814%%202
- DOE Contract Number:
- DE-AC09-96SR18500
- Resource Type:
- Conference
- Resource Relation:
- Conference: 2008 ASME Pressure Vessels and Piping Division Conference
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; PIPELINES; TRANSIENTS; WATER HAMMER; FLUID MECHANICS; MULTIPHASE FLOW
Citation Formats
Leishear, R. FLUID TRANSIENTS IN A PIPELINE WITH ONE END OPEN. United States: N. p., 2008.
Web.
Leishear, R. FLUID TRANSIENTS IN A PIPELINE WITH ONE END OPEN. United States.
Leishear, R. 2008.
"FLUID TRANSIENTS IN A PIPELINE WITH ONE END OPEN". United States. https://www.osti.gov/servlets/purl/933164.
@article{osti_933164,
title = {FLUID TRANSIENTS IN A PIPELINE WITH ONE END OPEN},
author = {Leishear, R},
abstractNote = {Water hammer during multi-phase flow is rather complex, but in some cases an upper limit to the pressure surge magnitude during water hammer can be estimated. In the case considered here, a two mile long pipeline with a single high point was permitted to partially drain. Due to gravitational effects, air bubbles up through the pipe line to its highest point, but the time required for air to reach the top of the pipe is rather long. Consequently, some transients caused by valve operations are affected by air entrapment and some are not. The intent of this research was to investigate the complex interactions between air, water vapor, and liquid during water hammer in a long pipe with one end of the pipe open to atmospheric conditions. To understand the system dynamics, experimental data was obtained from a long pipeline with an open end and also from a short, transparent tube. Transient calculations were performed for valve closures and pump operations as applicable. The limitations of available calculation techniques were considered in detail.},
doi = {},
url = {https://www.osti.gov/biblio/933164},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jun 09 00:00:00 EDT 2008},
month = {Mon Jun 09 00:00:00 EDT 2008}
}