Convective heat transfer , often referred to simply as convection , is the transfer of heat from one place to another by the movement of fluids . Convection is usually the dominant form of heat transfer in liquids and gases. Although often discussed as a distinct method of heat transfer, ...
A first evaluation of a local convection coefficient formula during the intake stroke is then carried out. Thermal experimental data compared to this correlation demonstrate a great underestimation of the simulated coefficient during the intake stroke leading to an underestimation of the heat transfer ...
Keywords:mechanicalseal;convectiveheattransfer;empiricalformulae 机械密封是最常见的轴封装置,在机械密封运转 过程中,动环组件对流体的搅动,以及动、静环密封 面之间的滑动摩擦会产生大量的摩擦热,导致密封环 温度升高,严重情况下会导致密封迅速失效。对于一 般机械密封,可以忽略动环组件搅动流体产生的摩擦 热,密封的摩擦...
T he following equat io n iS t he discret ized formulat ion of E q .f11: oA ot ~- Cot ~V,Q= 一 (,Q一 ) w he re . d enot es t he c orresp ond ing dist rib ut ion fu nc t ion in t he 一d irect ion ,Cn is t he disc ret e v eloc it y in t he...
The step function factor for laminar heat transfer from a disk rotating in uniform forced stream, with its surface temperature changing step-wise was analysed by the profile method based on the energy integral equation. The velocity profile in a laminar boundary layer changes complicatedly by the ...
The modified Bae-Kim formula can describe the heat transfer deterioration. In addition, the frictional drag would increase dramatically when the fuel transforms to the supercritical state. 展开 关键词: aviation kerosene supercritical convective heat transfer numerical study ...
6.Development of kind of heat transfer coefficient sensor based on steady method基于稳态方法的对流换热系数传感器研制 7.Numerical study on adiabatic wall cooling effectiveness and convective heat transfer coefficient of effusion cooling致密孔阵气膜冷却绝热温比和对流换热系数的数值研究 8.A FORMULA FOR AVERA...
The result shows that in the first-order approximation the Nusselt number of heat transfer in a curved pipe does not differ for uniform wall temperature or uniform heat flux case, in both laminar and turbulent regions. In the latter part, the formulae of Nusselt numbers obtained by the ...
We derive a formula of the concentration Rayleigh number for isothermal processes. The formula include diffusive permeability coefficient (omega ks), concentration polarization coefficient ([symbol: see text] ki) and solution parameters: density (rho), kinematic viscosity (nu), diffusion coefficient (Dk...
Conjugate Problems in Convective Heat Transfer Review英文文献资料.doc,HindawiPublishingCorporation MathematicalProblemsinEngineering Volume2009,ArticleID927350,27pages doi:10.1155/2009/927350 ReviewArticle ConjugateProblemsinConvective HeatTransfer:Revie