A time-dependent coefficient of heat transfer is proposed for the computation of thermal power required, so that a room temperature reaches a desired value within a given time. A mathematical formulation of the room heating transient phenomenon is constructed in a dimensionless form. Using an integr...
Also, the rate of heat transfer varies with time due to the change in the internal energy of the system. Unsteady-state conditions are a predecessor to steady-state conditions. Heat can be transferred by three different mechanisms: conduction, convection, and radiation. Heat conduction is the ...
Experimental Determination of Heat Transfer and Fluid Flow over Drift-empiaced Canisters S Pattisam 被引量: 0发表: 1997年 On thermohydrologic conditions near high-level nuclear wastes emplaced in partially saturated fractured tuff: 1. Simulation studies with explicit considera... We have performed ...
The thermal transfer sheet (10) has an image receiving layer (3) made of a dyeable resin formed peelably together with a thermally transferable dye layer (2) on the surface of a substrate sheet (1). Before thermal transfer of the dye the image receiving layer is transferred to the surfac...
6. heat:he at-transfer; 传热 heat 双语例句 1. heat在线翻译 1. BNi-2 brazing filler metal is widely used to braze heat-resistant alloy s by most enterprises recently in China. 目前钎焊耐热合金类材料时,大多数企业采用进口BNi-2钎料,这不仅成本较高,有时由于供货不及时而延误工期。
A large-eddy simulation (LES) of the flow over a backward-facing step was conducted to investigate the heat transfer phenomena in the reattachment zone. The Navier-Stokes equations for an incompressible fluid with the temperature field considered as a passive scalar are solved using a second-order...
Examination of the velocity field shows that the instantaneous heat transfer rate on the target surface is highly dependent on the hydrodynamic and thermal boundary layer development with time. 展开 关键词: multiple impinging jets intermittent pulsation convective heat transfer nusselt number ...
Aheat exchangeris a heat transfer device that exchanges heat between two or more process fluids.Heat exchangershave widespread industrial and domestic applications. Many types ofheat exchangershave been developed for use in steam power plants, chemical processing plants, building heat and air conditionin...
Turbulence data from three Arctic drift station experiments demonstrate features of turbulent heat transfer in the oceanic boundary layer. Time series analysis of several w′T′ records shows that heat and momentum flux occur at nearly the same scales, typically by turbulent eddies of the order of...
Notes: F, fluctuating temperature BC; NF, nonfluctuating temperature BC; C, conjugate heat transfer simulation. Table 6.1.1.2. Details of various DNS, computational domain, grid, time step, averaging times of DNS, and friction Reynolds numbers achieved in simulations at Pr = 0.01 DNSDomainMesh ...