Mathematical Simulation of Cavitation with Column Separation in Pressurized Pump Pipeline Systems

2018 ◽  
pp. 393-398
Author(s):  
Nerella Ruben ◽  
Erva Venkatarathnam
Keyword(s):  
Mathematical Simulation ◽  
Column Separation ◽  
Pipeline Systems

Entrapped Gas and Vapor Formation Influence on Surge Pressure in Liquid Pipeline Systems

2016 ◽  
Author(s):  
David Cheng ◽  
Borith Seng
Keyword(s):  
Experimental Data ◽  
Single Phase ◽  
Air Bubble ◽  
Modeling Methods ◽  
Column Separation ◽  
Design Engineers ◽  
Pipeline Systems ◽  
Entrapped Air ◽  
Pipeline Design ◽  
Vapor Formation

Predicting the effects of entrapped gas or vapor formation on surge is very important in design and operation of liquid pipelines. This paper identified the scenarios in which entrapped air and vapor formation need to be considered in pipeline operation and design. Useful modeling methods utilizing common liquid pipeline transient hydraulics software are provided. Validation of the presented methods was completed using experimental data from published literature. Examples are presented in showing the implementation of the provided modeling methods on real pipeline design scenarios. Finally, advantages and limitations of the presented methods was discussed. The methods presented in this paper enable pipeline operators and design engineers to properly estimate the complicated surge issues such as the influence of air bubble venting and column separation and collapse using commonly available single phase hydraulics tools. The operators and engineers will benefit from the provided methods in finding and validating reliable surge mitigation solutions and creating pipeline design with higher integrity level. The paper also presents the limitation of the methods and continuous improvements that can be achieved in the future.

Mathematical simulation of heat transfer during fluid flow for a fuel element with a polyzonal finned shell

2017 ◽  
Vol 20 (4) ◽  
pp. 58-63
Author(s):  
K. Maksymenko-Sheiko ◽  
◽  
Yu. Litvinova ◽  
T. Sheyko ◽  
M. Khazhmuradov ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Fuel Element ◽  
Mathematical Simulation

Mathematical Simulation of the Bearing Process in the Near Zone of a Complex Extended Object

2004 ◽  
Vol 61 (2) ◽  
pp. 141-149
Author(s):  
N. V. Barkhudaryan ◽  
S. E. Vazhinsky ◽  
V. A. Vasilets ◽  
A. Z. Sazonov ◽  
O. I. Sukharevsky
Keyword(s):  
Mathematical Simulation ◽  
Extended Object ◽  
Near Zone
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