The following information was submitted:
Transactions: INTERNATIONAL JOURNAL of MECHANICS
Transactions ID Number: 20-261
Full Name: Sadegh Torfi
Position: Assistant Professor
Age: ON
Sex: Male
Address: No 14, amale st, shush
Country: IRAN
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Tel prefix:
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E-mail address: st@siau.ac.ir
Other E-mails: storfi@gmail.com
Title of the Paper: analysis of surge in pipelines systems by characteristis method
Authors as they appear in the Paper: Mehdi Salmanzadeh, Sadegh Torfi
Email addresses of all the authors: st@siau.ac,ir, Mehdi2852003@yahoo.com
Number of paper pages: 8
Abstract: Transient flows in pipelines mostly occur by closing the valves , turning off or starting up of pump and other any factor which cause flow acceleration or deceleration . Newton was the first one who started researching about the analysis of the transient flow . Then characteristis method for solving equations with partial differential was invented and this method completed more by Streeter at 1950 .The results of characteristis in a simple pipeline are completely correct , since the pipeline can be divided in parts that the characteristis can pass through them . But in a system made of two or more pipelines for computing all the pipelines , definite time interval ∆t in order to establishing the boundary conditions in the joint of the pipelines , is considerd . ∆t also should satisfy the courant stability condition(C) . If the considered time of ∆t was in a state which the pipelines cannot be divided in equal parts through C∆t , then in som!
e intervals , characteristis don't pass through the divided points of these flow in pipes and they pass another points .
Keywords: Surge Analysis , Transient flow , Characteristis Method, Velocity and Pressure Equations
EXTENSION of the file: .pdf
Special (Invited) Session: Numerical Simulations of Transient Flow Occurrence in Pipelines by
Organizer of the Session: 657-291
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