Open AccessAbout the intensification of convective heat transfer from combustion products to the walls of a cylindrical shaped pulsing combustion chamber
Author(s) -
О. Р. Ситников,
Г.И. Павлов,
Yu.I. Khakimzyanova
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/288/1/012117
Subject(s) - combustion chamber , combustion , mechanics , heat transfer , convection , convective heat transfer , boundary layer , range (aeronautics) , flow (mathematics) , materials science , thermodynamics , heat exchanger , chemistry , physics , composite material , organic chemistry
Franke’s critical dependence determines the theoretical relationship for the numbers Nu for pulsating and stationary flow regimes. It is based on the heat exchange intensification hypothesis due to the interaction of the pulsating velocity profile and the boundary layer near the heating surface. The article presents the results of studies to test the efficiency of the Franke’s ratio for a given range of pulsed combustion chamber diameters, as well as to determine the influence of the geometric parameters of the chamber on the convective heat transfer from the combustion products to the walls of the chamber