COMPUTATIONAL FLUID DYNAMICS ANALYSIS ON HEAT TRANSFER AND FRICTION FACTOR CHARACTERISTICS OF A TURBULENT FLOW FOR INTERNALLY GROOVED TUBES
作者： P. Selvaraj , J. Sarangan , S. Suresh
关键词: Computational fluid dynamics 、 Working fluid 、 Reynolds number 、 Pressure drop 、 Mechanics 、 Nusselt number 、 Tube (fluid conveyance) 、 Heat transfer 、 Materials science 、 Turbulence
摘要: The article presents computational fluid dynamics studies on heat transfer, pressure drop, friction factor, Nusselt number and thermal hydraulic performance of a plain tube equipped with the three types internal grooves (circular, square trapezoidal).Water was used as working fluid. Tests were performed for Reynolds ranges from 5000 to 13500 different geometry inside grooved tubes. maximum increase drop obtained numerical modeling 74% circular, 38% square, 78% trapezoidal tubes compared tube. Based analysis average increased up 37%, 26%, 42% tubes, respectively, while circular tube, 27% 40%
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