Calculation of heat transfer in laminar pipe flow of liquids with structural viscosityExpressions have been obtained for the dimensionless heat-transfer criteria of liquids with structural viscosity for the conditions t w =const and q w =const in the case of laminar quasi-isothermal flow....
I did some basic calculation from heat transfer book (conduction+convection) for pipe in radia direction and found TSur = 400K. But when i tried this in CFX by giving the above boundary conditions plus wall with heat transfer coefficient (h = 1/R: from analytical convection+conduction), it...
Calculation of heat transfer and flow resistance in the turbulent pipe flow of cooled carbon dioxide in the supercritical region 来自 Semantic Scholar 喜欢 0 阅读量: 124 作者:VN Popov,NE Petrov 摘要: The results are given from a numerical solution of the flow and heattransfer problems in the ...
heat transferdrag reducing turbulent pipe flowsheat eddy diffusivityfriction drag reduction ratioWeissenberg numberA new semi-empirical equation of heat eddy diffusivity in terms of friction drag reduction ratio and Weissenburg number is presented. The proposed equation was validated with heat transfer ...
3.5.3 The number of transfer units (NTU)-effectiveness method This method for evaluating the performance of heat exchangers has the advantage that it does not require the calculation of the logarithmic mean temperature difference. Its main use is to calculate achievable outlet temperatures by an exi...
calculated,and the friction of pipe and partial friction had carried on the detailed discussion and calculation,and the total pressure dropped along the pipeline.Through the relevant data to calculate the flow rate of heat conduction oil,the pressure centrifugal pump selection scheme of ascension was...
CalculationandAnalysisofHeatTransferProcessinPipesAltitude l0 第24卷第4期 20l1年 11月 燃气涡轮试验与研究 GasTurbineExperimentandResearch Vo1.24,No. 4 Nov.,2011 摘要:分析了高空台加温试验时管网内部流动的动态换热特性,建立了管内气体和管壁的联合换热方程,在与试验 数据对比的基础上提 了数学模型的修正方...
An equation was derived for the calculation of heat and mass transfer coefficients in the case of pipe and channel flow, taking into account the experimental data for high Reynolds and Prandtl numbers. The equation is valid for the transition region and for the range of fully developed turbulent...
Calculate the Inside heat transfer coefficient The formula depends on the flow region For Laminar flow (Re < 2100) use Sieder and Tate For this illustration, assume viscosity at wall = bulk viscosity Laminar flow calculation N/A For Transition flow (2100 <= Re <= 10000), use Hilpert correl...