MODIFICATION OF A ONE-DIMENSIONAL LAGRANGIAN GRID 
FOR MODELING OF DYNAMIC PROCESSES IN PIPELINES
OF VARIABLE CROSS SECTION
I. S. Zaguzov and K. A. Polyakov

UDC 532.517

Consideration is given to a mathematical model of 
the nonseparating nonstationary motion of an ideal compressible gas 
in a pipeline with a variable cross section. A method which enables 
one to calculate changes in the pressure, density, and velocity at 
the sites of contraction and expansion of the pipeline without going 
beyond the scope of a one-dimensional model is presented.

Samara State University, Samara, Russia; email: polyakov@ssu.samara.ru. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 74, No. 3, pp. 
141-144, May-June, 2001. Original article submitted November 5, 1999; 
revision submitted October 4, 2000.

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