Unsteady Flow Effect on Pipeline Networks

Gamal Elsaeed

ISBN 10: 3847314076 / ISBN 13: 9783847314073

Published by LAP LAMBERT Academic Publishing Dez 2011, 2011

About this Item

This item is printed on demand - it takes 3-4 days longer - Neuware -The protection of the irrigation pipeline networks against Water Hammer -as a result of pump power failure- is of great importance. In this study, an improved design for irrigation pipeline networks is investigated.Basic partial differential equations based on one-dimensional homogenous flow model are formulated and solved by the method of characteristics. The differential equations of momentum and continuity are developed for solving transient problem. For transient condition caused by pump failure, four different scenarios were considered to study the impact of column separation of the pipelines system. These scenarios are the steady state condition, transient condition without protection, transient condition with air vessel as a protection and transient condition with air vessel and two surge towers as a protection. Also, the impact of changing diameter and wall thickness of pipes, changing material type and polar moment of inertia of the pump on the magnitude of the maximum pressure heads and column separation were included in the study. The Water Hammer Software 'Wanda V3.30' was applied and the results were graphically presented for different relationships. 184 pp. Englisch. Seller Inventory # 9783847314073

Bibliographic Details

Title: Unsteady Flow Effect on Pipeline Networks

Publisher: LAP LAMBERT Academic Publishing Dez 2011

Publication Date: 2011

Binding: Taschenbuch

Condition: Neu

About this title

Synopsis:

The protection of the irrigation pipeline networks against Water Hammer -as a result of pump power failure- is of great importance. In this study, an improved design for irrigation pipeline networks is investigated.Basic partial differential equations based on one-dimensional homogenous flow model are formulated and solved by the method of characteristics. The differential equations of momentum and continuity are developed for solving transient problem. For transient condition caused by pump failure, four different scenarios were considered to study the impact of column separation of the pipelines system. These scenarios are the steady state condition, transient condition without protection, transient condition with air vessel as a protection and transient condition with air vessel and two surge towers as a protection. Also, the impact of changing diameter and wall thickness of pipes, changing material type and polar moment of inertia of the pump on the magnitude of the maximum pressure heads and column separation were included in the study. The Water Hammer Software "Wanda V3.30" was applied and the results were graphically presented for different relationships.

About the Author:

A Professor at the Civil Engineering Department, Faculty of Engineering, Shobra, Banha University, Cairo, Egypt. He holds a B.Sc., M.Sc., and Ph.D. in Civil Engineering and Business Administration studies from Ain Shams University, Cairo, Egypt, Texas A&M, and Harvard Universities, U.S.A. He is also a member of the ASCE, IAHR, COPRI, and EWRI.