HEAT TRANSFER IN COMPLEX-PROFILE CHANNELS UNDER DIFFERENT STABILIZED FLOW CONDITIONS OF THE MEDIUM AND SYSTEM SEARCH FOR HIGHER-ACCURACY NONSTATIONARY TEMPERATURE FIELDS

摘要

By means of the double Laplace-Carson transform as integral averaging of the time function decreasing by the exponential law with weight and along a semi-bounded pipe, the nonstationary heat transfer equation under steady-state laminar or turbulent flow conditions is transformed into a boundary-value problem, which is solved by the method of orthogonal projection of the residual, where, as a finite element, the entire bounded domain of variation of elliptic coordinates is taken.