Light-induced heat and mass transfer of gas in a plane channel

The paper deals with the processes of heat and mass transfer of a rarefied gas in a plane channel in the field of resonance radiation. The problem is solved using linearized kinetic equations with a first-order model integral of collisions. The surface and collision mechanisms of light-induced drift are investigated, as well as the mechanism of heat flux at arbitrary values of the Knudsen number. Analytical expressions for channel cross section-averaged flows are obtained at high and low values of the Knudsen number.Translated from Teplofizika Vysokikh Temperatur, Vol. 43, No. 1, 2005, pp. 127–135. Original Russian Text Copyright © 2005 by I. V. Chermyaninov, V. G. Chernyak, and E. P. Khinkina.     

Numerical method of simulation of the heat and mass transfer in different flows in a channel with penetrable walls

A mathematical model and a numerical method for calculating the dynamics of a fluid and the heat and mass transfer in it in a channel with penetrable walls are presented. Turbulent and transient flows in this channel were simulated on the basis of Navier-Stokes equations by the method of decreasing the rate of change in desired functions at certain nodes. The results of comparison of calculation and experimental data are presented. __________ Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 79, No. 3, pp. 91–101, May–June, 2006.     

Experimental study of heat transfer in a plane channel with semicylindrical projections

An experimental study was made of local heat transfer in a plane channel with semicylindrical projections arranged in staggered and unstaggered fashion. The study was conducted in the range of Reynolds numbers (1.5–170) · 10³ for the air flow.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 45, No. 4, pp. 533–537, October, 1983.     

Nonstationary heat transfer to the walls of a cylindrical channel filled with liquid

The results of an experimental investigation into the nonstationary (transient) heat transfer from an external medium to the walls of a dead-end cylindrical channel filled with liquid and closed by a copper bottom are presented. The experimental apparatus and method of conducting the experiments are described.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 17, No, 6, pp. 1005–1009, December, 1969.     

Piston-driven laminar flow and heat transfer in a plane channel with a sudden expansion

 This paper presents a numerical study of piston-driven heat transfer and fluid flow in a plane channel containing a sudden expansion. The numerical method employed is based on a control-volume-based finite element method for incompressible flow with a staggered and moving grid and SIMPLER algorithm for pressure-velocity coupling. The numerical results show a good agreement with the experimental data reported in the literature. Results concerning time and space evolution of the thermal and flow fields are presented for different values of the expansion ratio, the initial clearance volume, and the piston velocity. Received: 20 April 2002 / Accepted: 23 January 2003     

Unsteady heat transfer in a micropolar fluid flowing in a plane channel

Heat transfer in a micropolar fluid flowing in a plane channel following an abrupt change in the wall temperature is investigated. The obtained results indicate that in several cases the fluid microstructure has a considerable effect on the main heat-transfer characteristics.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 37, No. 6, pp. 994–999, December, 1979.     

Numerical solution of heat transfer in micropolar fluid flow in a channel with porous walls

Using the basic equations of heat conducting micropolar fluid, heat transfer through a channel of porous walls has been studied. The temperature distribution is obtained for different values of suction parameter $\text{S}$, convective parameter $\text{E}$ and micropolar parameter $\text{R}$.     

Friction and heat transfer in the turbulent flow of a compressible gas in a plane channel

Results are given of calculating the local friction and heat-transfer characteristics for the case of gas cooling. The calculations are compared with experiment.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 48, No. 1, pp. 19–23, January, 1985.     

Ultrafiltration in a plane channel with one permeable surface

A study is carried out to investigate unsteady-state concentration polarization in the case of laminar ultrafiltration in a plane channel with one permeable surface as a function of the selectivity properties of the membrane.     

Featurs of heat transfer in a flow of air in a plane channel with unstaggered half-cylindrical projections

A study was made of local heat transfer in a flow of air with Re=(1.5-170)-103, s₁/d=1.27; s₂/d=5.33; 3.04; 2.13. It was found that heat transfer is non-symmetrical on opposite sides of the channel.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 53, No. 6, pp. 949–954, December, 1987.     

Investigation of heat transfer in a plane channel with discrete heat supply with account for the axial thermal conductivity of the wall

We present an analytical solution for the problem of convective heat transfer and the results of calculations of heat transfer in channels with discrete heat release in laminar and slug flows.Institute of Precision Mechanics and Optics, St. Petersburg, Russia. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 67, Nos. 5–6, pp. 405–417, November–December, 1994.     

Motion of a rarefied gas in a plane channel in the presence of condensation on the channel walls

We examine the flow of a rarefied gas through a broad range of Knudsen numbers under the action of small pressure and temperature differences in a plane short channel, with provision made for the processes of evaporation and condensation at the channel walls.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 57, No. 6, pp. 906–912, December, 1989.     

Development of liquid flow in a plane channel with moving permeable walls

We determined the laws that govern the change in hydraulic resistance in viscous incompressible liquid flow between parallel permeable and moving walls. The laws are of great practical interest. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 70, No.2, pp. 200–204, March–April, 1997.     

Experimental study of heat transfer from the walls of a channel to a circulating fluidized bed

Results are presented from an experimental study of external heat transfer in a circulating fluidized bed.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 59, No. 6, pp. 975–979, December, 1990.     

Mass transfer in a cylindrical channel with evaporation and condensation at the walls

A model kinetic equation is used to investigate the transfer of material evaporated from the walls of a channel which has a temperature gradient along its axis.Translated from Tnzhenerno-Fizicheskii Zhurnal, Vol. 35, No. 1, pp. 82–86, July, 1978.     

Calculation of vibratory processes in liquids during heat transfer from hot channel walls

Vibration modes in liquids during heat transfer with phase transformations are classified here on the basis of generalized test data. Criterial equations of self-excitation and for the natural frequency of harmonic vibrations are derived analytically. These equations are in satisfactory agreement with test results.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 25, No. 2, pp. 217–226, August, 1973.     

Gel formation in ultrafiltration in a plane channel with one permeable surface

We investigate the unsteady-state laminar process of ultrafiltration in a plane channel with one permeable surface in the stage of stationary gelatination.     

Calculation of the temperature field in a plane channel with nonuniform heating of thermally conducting walls

A determination is made of the steady temperature of the walls of a channel with Poiseuille gas flow and with heat sources in the thermally conducting walls. The source power density has a parabolic distribution law.     

Nonstationary heat and mass transfer with a reduction of the heat load in a heat exchanger with twisted tubes

The results of an investigation of the nonstationary mixing of the heat-transfer agent accompanying the reduction of the heat load in a bundle of twisted tubes are presented, and a generalizing dependence for calculating the effective coefficient of diffusion is derived.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 54, No. 4, pp. 533–539, April, 1988.