Article

Arhive, 2002, № 6

Heat and Mass Transfer and Physical Gasdynamics

2002. V. 40. № 6. P. 881–891

Kurganov V.A., Martynov S.B.

Calculation of Heat Transfer and Drag in Tubes under Conditions of Laminar Flow of Gases with Varying Properties

A numerical investigation is performed of the problem on heat transfer and hydraulic drag in the hydrodynamic and thermal initial sections of a round tube heated by the $q_w = \text{const}$ law, under conditions of laminar flow of gases with varying physical properties. Monatomic, diatomic, and polyatomic gases and gas mixtures are treated, as well as the range of heat loads $Q^+_{in}$ up to $20$. The obtained results are used to analyze disagreement between the available literature data; methods are suggested for improving the engineering procedure of thermohydraulic design under laminar flow of gases and the known model of stabilized flow and heat transfer.

Article reference:
Kurganov V.A., Martynov S.B. Calculation of Heat Transfer and Drag in Tubes under Conditions of Laminar Flow of Gases with Varying Properties, High Temp., 2002. V. 40. № 6. P. 881