A numerical investigation of wake deformation in density stratified fluids

Summary The collapse shape and internal velocity field of an initially circular homogeneous fluid mass surrounded by a linearly stratified fluid are computed. During the initial stage of collapse, the fluid is assumed to be irrotational and inviscid while in later stages the Navier-Stokes equations are solved numerically by a modification of Chorin's primitive variable decomposition method. The final stage is analyzed by means of an asymptotic viscous long-wave theory.     

Experimental investigation of heat transfer in a centrifugal heat pipe with an optimized layer of heat-transfer agent

This paper describes a technique and gives results of experimental investigations of special features of heat transfer in the evaporator and condenser sections of a centrifugal heat pipe with optimized thickness of the layer of heat transfer agent.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 43, No. 5, pp. 775–780, November, 1982.     

Boundary layer heat transfer with electromagnetic fields

Summary A laminar compressible magnetohydrodynamic boundary layer flow over a flat-plate has been studied. The effect on the behaviour of boundary layer heat transfer with electromagnetic fields are examined.With 4 Figures     

Heat transfer in enclosures with programmed heat release

The problems of calculating the indoor air temperature, heat consumption, and room temperatures with arbitrary thermal perturbations are examined.Translated from Inzhenerno-Fizicheskii Zhunal, Vol.43, No. 3, pp. 406–412, September, 1982.     

A frequency analysis of nonsteady heat transfer in a layer of disperse material with heat sources

In this paper we consider the possibility of solving problems of nonsteady heat transfer in a layer by a frequency method which makes it possible, comparatively simply, to automate the calculations by means of a digital computer, skipping the stage of an analytical determination of the unknown functions in the time domain.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 16, No. 1, pp. 72–76, January, 1969.     

Experimental investigation of local heat transfer in a turbulent boundary layer at supersonic speed

The authors present results of an experimental investigation of coefficients of local heat transfer in a turbulent boundary layer over a wide range of M and Re numbers and values of the temperature ratio.     

Experimental investigation of the hydrodynamic boundary layer and heat transfer on a stationary disk with radial-slit air injection

This paper gives the main results of an experimental investigation of the laws of flow and heat transfer for the case of a turbulent jet emerging from a radial source of finite dimensions and spreading along a wall in the Re_x range 10⁴-2 · 10⁵.     

Experimental investigation of turbulent heat transfer in a boundary layer on a cooled flat plate

Results are presented of an experimental investigation of the effect of the temperature factor on the law of heat transfer in turbulent boundary layers.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 19, No.2, pp. 185–189, August, 1970.     

Free-convection heat transfer in a horizontal cylindrical layer with variable heat source location

The method and results of an experimental investigation of free-convective heat transfer with variable heat source position are reported.     

Calculation of the temperature distribution in an eccentric annular layer with heat release

A solution is found for the problem of the steady temperature field in a uniform eccentric annular layer with constant internal heat release.     

多孔铝对流换热系数的反演分析

建立了多孔铝的一维瞬态对流换热模型,采用反演分析方法求得了多孔铝的体积对流换热系数.给出了多孔铝对流换热的无量纲准则关联式,并在较宽的孔结构范围内(孔隙率为60.0%～95.0%、孔径为2.5～6.0 mm)研究了孔结构对多孔铝换热系数的影响.结果表明:多孔铝的换热系数随着风速的增加而提高.在风速相同的条件下,换热系数随着孔径和孔隙率的减小而提高.在风机功率相同的条件下,换热系数随着孔隙率的增大而提高,在孔隙率约为85%时达到峰值.     

Hydrodynamics and heat and mass transfer in a solidifying melt

The effect of natural thermal convection in a solidifying melt on the distribution of an admixture in the liquid and solid phases as a function of the Lewis and Schmidt numbers is studied numerically.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 33, No. 5, pp. 922–930, November, 1977.     

Radiant-conductive heat transfer in a plane ammonia layer

Results of experimental and theoretical investigations of radiant-conductive heat transfer in a plane ammonia layer are presented.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 18, No. 2, pp. 216–223, February, 1970.     

Experimental heat transfer investigation in heat shield material test facilities

An experimental investigation has been made of the thermal interaction of the gas in a facility for testing heat shield materials. The results are presented in terms of the Nusselt number at the stagnation point of a flat plate, accounting for turbulent fluctuations of the oncoming stream. The data obtained are compared with the theory of reference [4].Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 23, No. 6, pp. 988–992, December, 1972.     

Experimental investigation of heat transfer in the evaporator of a water heat pipe

The applicability of Gilmour's correlation equation in describing the heat transfer in the evaporator of a low-temperature heat pipe was experimentally confirmed.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 33, No. 2, pp. 250–254, August, 1977.     

Conjugate problem of heat transfer in a laminar boundary layer with injection

The author examines two conjugate problems of heat transfer in the laminar boundary layer at the boundary of a semi-infinite porous medium on the assumption that fluid filters continuously through the porous surface and that the injection velocity varies as x^–1/2, where x is the distance in the direction of flow.     

Some extremal problems of heat transfer in a layer

Three extremal problems of heat transfer in a layer are formulated for the condition of reverse motion of the thermal medium. The results of numerical solutions of the problems are presented in graphical form.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol.21, No. 5, pp. 914–921, November, 1971.