THE PROBLEM OF IDENTIFICATION OF HYDRAULIC RESISTANCE COEFFICIENTS IN MAKISTRAL GAS PIPELINE
Abstract
A numerical approach, based on obtaining design formulas for the determination of hydraulic resistance coefficients of sites in pipeline transportation systems in the presence of the results of observations over a gas pipeline operating regimes, is proposed. The representation of the hydraulic network in the form of a directed graph allows to essentially reduce the number of equations in the system down to the number of closed loops. In the software implementation of the method described, for the solution of practical problems, group identification of the hydraulic resistance coefficients is provided for every eventuality.
References
Myznikov F.M.,Fajzillin R.T. Utochnenie koefficientov soprotivleniya v slozhnyh gidravlicheskih setyah po rezultatam ogranichennogo chisla izmerenij.// Teplofizika i aeromehanika, Novosibirsk,2005, tom12,s 483-486.
Myznikov F.M. Primenenie metoda Nyutona dlya resheniya zadachi utochneniya koefficientov soprotivleniya uchastkov slozhnyh gidravlicheskih setej. ‘Student i nauchno-tehnicheskij process’: Matematika./Novosibirskij gos.un-t. Novosibirsk, 2005, s 23-25.
Polyak B.T. Vvedenie v optimizaciyu. M.,Nauka,1983,384 s.
Evstigneev V.A. Primenenie teorii grafov v programmirovanii. M.,Nauka, 347 s.,1985.
A.A.Samarskij Teoriya raznostnyh shem. M., Nauka, 1983,616s.
Vasilev F.P. Metody optimizacii. M.,Faktorial Press,2002.
Ishmuhamedov A.Z. Voprosy ustojchivosti i approksimacii zadach optimalnogo upravleniya sistemami s raspredelennymi parametrami M.:VC RAN ,2001.
CC BY-ND
A work licensed in this way allows the following:
1. The freedom to use and perform the work: The licensee must be allowed to make any use, private or public, of the work.
2. The freedom to study the work and apply the information: The licensee must be allowed to examine the work and to use the knowledge gained from the work in any way. The license may not, for example, restrict "reverse engineering."
2. The freedom to redistribute copies: Copies may be sold, swapped or given away for free, in the same form as the original.
