SIMULATION OF HEAT AND AERODYNAMIC PROCESSES
IN REGENERATORS OF CONTINUOUS AND PERIODIC
OPERATION. I. NONLINEAR MATHEMATICAL MODEL
AND NUMERICAL ALGORITHM

V. P. Kovalevskii

UDC 621.438.536.24

A mathematical model for investigating the processes in 
regenerator heat exchangers is described. A finite-difference scheme 
of numerical integration is proposed for solving the conjugate problem 
on unsteady heat exchange between one-dimensional flows and a two-dimensional 
matrix wall. The data of test calculations have been compared with 
the data of other authors. The quasistationary and dynamic processes 
in a gas-turbine plant regenerator with a matrix of gauzes have been 
investigated. The optimum design parameters of such a regenerator 
and rotor speeds providing a maximum heat efficiency of the regenerator 
at minimum aerodynamic drags in it have been determined.

President-Neva Energy Center, 4 Zelenogorskaya Str., St. 
Petersburg, 194156, Russia; email: kovalevskiy@powercity.ru. Translated 
from Inzhenerno-Fizicheskii Zhurnal, Vol. 77, No. 6, pp. 26-37, 
November-December, 2004. Original article submitted April 4, 2003; 
revision submitted January 29, 2004.