The purpose of this study is to implement a new analytical method which is a combination of the variational iteration method vim and the pade approximant for solving steady flow over a rotating disk in. Numerical modeling of conjugate heat transfer of a rotary disk. Pdf convective heat and mass transfer in rotating disk. Entropy generation and activation energy mechanism in. We presented dual solutions for the flow over a rotating cone and a rotating flat plate cases. Olander department of nuclear engineering, university of california, berkeley, california received 15 august 1961 and in revised form 16 february 1962 abstracthe transient heat and mass transfer behavior of various rotating disk revolvingfluid. Evans computational reactive processes department p. Chapter vi liquid crystal thermography on the fluid solid interface of rotating systems test case. The statistical tools, including probability density functions pdf and. Turbulent heat transfer on the stationary disk in a rotorstator system. To facilitate the experiments, the naphthalene sublimation technique was employed. Binary chemical reaction with activation energy in.
Flow, heat and mass transfer about a permeable vertical. On the as we use cookies to enhance your experience on our website. Arikoglu and ozkol 2006 studied mhd slip flow over a rotating disk with heat transfer. Because of that a simpler form for total coefficient of heat transfer, given by the relation 2 will be applied. Flow and heat transfer in rotating disc systems, vols 1 and 2 9780863801952 by owen. Convective heat and mass transfer in rotating disk systems. International journal of heat and mass transfer 46 2003 27152726. The book is devoted to investigation of a series of problems of convective heat and mass transfer in rotatingdisk systems. Convective heat and mass transfer in rotating disk systems free download as pdf file.
The effects of mass injection or removal at the surface of a rotating disk on heat transfer and on the flow field about the disk are studied. It is found that the experimental results agree very well with the values calculated theoretically. Heat and mass transfer can be encountered in many applications ranging from design and optimization of traditional engineering systems, such as heat exchangers, turbine, electronic cooling, heat pipes, and food processing equipment, to emerging technologies in sustainable energy, biological systems, security, information technology and. Nevertheless, to the best of the authors knowledge, very little survey on the heat transfer and sealing effects in the nonisothermal counter rotating disk cavities can be dated, 4 and there is also no report about the flow structures and heat transfer characteristics in the counter rotating disk cavity system with air inflow and outflow. The flow channel is considered to be a rotating disk with a slip which is different in span and streamwise directions, and heat transfer is investigated using dissipation term of the fluid. Time varying rotating disk flow with heat transfer of a non newtonian fluid in porous medium hazem ali attia 1, mostafa a. The heat transfer from a rotating disk maintained at a constant temperature is considered for large and small values of the prandtl number. In the following entry, rotating duct systems, parallel, heat transfer in, it is explained that rotation of a straight duct influences an internal pressuredriven flow via coriolis and centripetal buoyancy interactions with consequential modifications to the otherwise forced convection heat transfer between the duct wall and the flow.
In order to analyze the results, measurements of the heat mass transfer of a stationary disk with an impinging jet and a rotating disk without jet impingement were also made. Attia department of mathematics, college of science, alqasseem university, p. The rotating disk reactor rdr takes advantage of the uniform transport properties characteristic of an infinite rotating disk in an infinite medium see e. The system of non linear partial differential equations governing the unsteady flow, heat and mass transfer is first converted in to a system of ordinary. Request permission export citation add to favorites. Arora and stokes analyzed the heat transfer between two rotating disks. Experimental mass transfer at a forcedconvective rotating. Mass and heat transfer from drops in liquidliquid extraction. In this work, effects of prandtl number on the heat transfer characteristics of an unconfined rotating circular cylinder are investigated for varying rotation rate. Process waste heat recovery has been gaining attention in last decades in order to use resourcesefficiently. Hartnett and deland 1961 examined the influence of prandtl number on the heat transfer by rotating bodies.
Discussing fluid mechanics and heat transfer in rotating disc systems, this text simplifies and extends existing information to provide a basic understanding of the subject. The aim of this experimental study is to investigate the heat mass transfer of a rotating disk with an impinging circular jet. Abstract this article presents flow, heat and mass transfer phenomena in bingham plastic fluid. Mhd flow and heat transfer between coaxial rotating. New solution for steady flow over a rotating disk in porous. In this phase of the work mass transfer rates from a disk rotating at various speed in an.
Rotating disk heat transfer in a fluid swirling as a forced vortex 28 july 2005 heat and mass transfer, vol. Binary chemical reaction with activation energy in radiative rotating. The effects of rotating angular speed and pin configuration on the temperature maps and convective heat transfer characteristics on. Convective heat transfer to sisko fluid over a rotating disk asif munir1 and masood khan department of mathematics, quaidiazam university, islamabad 44000, pakistan abstract. Jaber safdari, prediction of mass transfer coefficients in an asymmetric rotating disk contactor using effective diffusivity, chinese journal of chemical engineering, 2017. By continuing to use our website, you are agreeing to our use of cookies. Physical insight, mathematical models and experimental data are used to explain the flow structure and provide theoretical methods and correlations which will be of use to. Box 969 sandia national laboratories cop the snbmitted authored by a livermore, california 9455 10969 states government nnder contrack usa. It is observed that both the slip factor and the magnetic flux decrease the velocity in all directions and. This monograph presents results of the analytical and numerical modeling of convective heat and mass transfer in different rotating flows caused by i system rotation, ii swirl flows due to swirl generators, and iii surface curvature in turns and bends. A threedimensional numerical study on the flow and heat transfer characteristics over a rotating disk with bottom wall subjected to uniform heat flux was conducted with the use of rng k turbulent model. Steady flow and heat transfer around a rotating cylinder. The heat transfer from a rotating disk the quarterly. Besides, heat and mass transfer must be jointly considered in some cases like evaporative cooling and ablation.
The book describes results of investigations of a series of convective heat and mass transfer problems in rotating disk systems, namely, over free rotating disks, under conditions of transient heat transfer, solidbody rotation of fluid, orthogonal flow impingement onto a disk, swirl radial flow between parallel co rotating disks, in cone disk. The book describes results of investigations of a series of convective heatandmass transfer problems in rotatingdisk systems, namely, over free rotating disks, under conditions of transient heat transfer, solidbody rotation of fluid, orthogonal flow impingement onto a disk, swirl radial flow between parallel corotating disks, in conedisk. Flow and heat transfer in cavities between rotor and stator disks. The study of boundary layer flow and heat transfer near a rotating disk with nanofluids is investigated numerically.
Closure to discussions of heat and mass transfer from a. The experiments are conducted for the various hub heights of 5, 10 and 15 mm in a single rotating disk and 4, 6 and 8 mm in co rotating disks and for the various rotating reynolds numbers of 5. And some experiments were also made for validation. This article explores the heat and mass transfer behaviour of magnetohydrodynamic free convective flow past a permeable vertical rotating cone and a plate filled with gyrotactic microorganisms in the presence of nonlinear thermal radiation, thermo diffusion and diffusion thermo effects. Papers from the 14th symposium of the international centre for heat and mass transfer, held september. The problem of flow, heat and mass transfer about a cone was investigated by many researchers. Meyer a department of mechanical and aeronautical engineering, university of pretoria, pretoria. T h e unsteady heat transfer from a rotating disk to low prandtl number fluids under condition of a step change in surface temperature has been analyzed convection transfer heat in rotating systems 149 by cess 39. The book is devoted to investigation of a series of problems of convective heat and mass transfer in rotating disk systems. The book describes results of investigations of a series of convective heat and mass transfer problems in rotating disk systems.
Convective heat and mass transfer in rotating disk systems igor. Pdf convective heat transfer on a rotating disk with. The usual way to make the best of both approaches is to first consider heat transfer without mass transfer, and present at a later stage a briefing of similarities and differences between heat transfer and mass transfer. Unsteady heat and mass transfer from a rotating vertical cone with a magnetic. Convective heat and mass transfer in rotating disk systems, berlin heidelberg. Igor v shevchuk the book describes results of investigations of a series of convective heat and mass transfer problems in rotating disk systems, namely, over free rotating disks, under conditions of transient heat. Rotating disk flow and heat transfer of a conducting non.
Stokes flow heat transfer in an annular, rotating heat exchanger. Turbulent flow between a rotating disk and a parallel wall. Three types of nanoparticles, namely, silver ag, copper cu and alumina al2o3 with water as the base fluid are considered. Review of fluid flow and convective heat transfer within rotating disk.
The book describes results of investigations of a series of convective heat and mass transfer problems in rotating disk systems, namely, over free rotating disks, under conditions of transient. The bottom plate is a stretching sheet and the top one is a solid porous plate. This article deals with study of the steady flow and heat transfer characteristics of sisko fluid over a rotating infinite disk. In this study, the local convective heat transfer from a rotating disk with a transverse air crossflow was evaluated using an infrared thermographic experimental setup. Heat transfer analysis in the timedependent slip flow over a. The flow field and disk heat flux were obtained over a range of operating conditions. The flow channel is considered to be a rotating disk with a slip which is.
An investigation is made to study the micropolar fluid flow of transient thermophoretic particle deposition of forced convective unsteady heat and mass transfer flow due to a rotating disk in the. New solution for steady flow over a rotating disk in porous medium with heat transfer hamed shahmohamadi1, mohammad mehdi rashidi1 abstract. Rotating disk flow with heat transfer of a non newtonian. Analysis of hydrodynamics and heat transfer in a thin liquid. Abdeen 2 and menna mahmoud elbarawy 1 1department of engineering mathematics and physics, faculty of engineering, elfayoum university, elfayoum 63514, egypt email. Rotating disk flow with heat transfer of a non newtonian fluid in porous medium hazem a. The effects of an axial magnetic field on the flow and heat transfer about a rotating disk have been analyzed by sparrow and cess 1962. The results show that the momentum boundary layer thicknesses shortens as the nanoparticle volume fraction increases, whereas thermal boundary layer. International journal of heat and mass transfer, 55 2012, 375383. Heat transfer to a free rotating disk cengiz camci the pennsylvania state university department of aerospace engineering summary list of symbols vi.
Previous studies on the use of screens to enhance the rate of mass transfer were limited to liquidsolid mass transfer 2729. Effect of chemical reaction on mass transfer due to a. Flow and heat transfer in rotatingdisc systems book. Mass transfer behaviour of a new liquidliquid rotating. Heat transfer in an electrically conducting fluid bounded by two parallel plates is also studied in the presence of viscous dissipation. The steady hydromagnetic flow in a porous medium of an incompressible viscous electrically conducting non newtonian fluid above an infinite rotating porous disk is studied with heat transfer. The present study investigates convective heat mass transfer and flow characteristics inside rotating disks.
Unsteady heat and mass transfer by mhd mixed convection flow. Full length article heat transfer analysis in the timedependent slip. The object of this study is the development of the fluid flow and resultant heat transfer caused by a rotating disk moving vertically upward or downward during. Convection heat transfer in rotating systems sciencedirect. The theoretical treatment of this system is greatly simpli. Mass and heat transfer behavior of a rotating disc with. Closure to discussions of heat and mass transfer from a rotating disk 1959, asme j.
Read convective heat and mass transfer in rotating disk systems by igor v. The book is devoted to investigation of a series of problems of convective heat and mass transfer in rotating disk syste. In an infinite rotating disk flow, the heat and mass transfer to the rotating surface are said to. Unsteadystate heat and mass transfer in the rotatingdisk. Centre for heat and mass transfer on free shipping on qualified orders. Lie group analysis of heat and mass transfer effects on steady mhd free convection dissipative fluid flow past an inclined porous surface with heat generation was studied by gnaneswara reddy 26. An external uniform magnetic field is applied perpendicular to the disk and a uniform injection or suction. Mass transfer, flow, and heat transfer about a rotating disk. The flow and heat transfer of nh3 and he have been studied in a rotating disk system with applications to chemical vapor deposition reactors. Rotating disk flow and heat transfer through a porous medium of a nonnewtonian fluid with suction and injection, communications in nonlinear science. Flow analysis of powelleyring fluid over an offcentered. Papers are presented on transient heat analysis of stator in aircooled turbine generators, numerical evaluation of single central jet for turbine disk cooling, film condensation on a rotating cone, flows of a gas in an abruptly rotating cylinder, developing turbulent flow in a curved duct with strong secondary motion, effects of turn region. Free convective heat and mass transfer of magnetic bio.
Even though the mechanisms of heat transfer in static systems such as cross flow heatexchangers are well understood, the situation is totally different for the heat transfer mechanisms insystems consisting of parallel, rotating discs. Unsteady heat and mass transfer from a rotating vertical cone. The rotating disks are simulated on the commonly used 3. Flow and heat transfer of nanofluids near a rotating disk. Stokes flow heat transfer in an annular, rotating heat exchanger, applied thermal engineering 2011, doi. The fluid flow and mass transfer or heat transfer near a rotating disk in the presence of an external forced flow is an. Review of fluid flow and convective heat transfer within. Auone and ramshaw 20 performed heat and mass transfer experiments on a liquid flowing over a rotating disk. They presented a numerical study of the system showing good agreement between heat transfer predictions and experimental data. Heat mass transfer between an impinging jet and a rotating disk. Awad, 1 sandile motsa, 2, and melusi khumalo 1 xiaodong wang, editor.
Consideration is given to gaseous systems which are composed of either one or two component gases. Mass and heat transfer from an enclosed rotating disc with and without source flow. Convective heat transfer to sisko fluid over a rotating disk. The freedisc case, rotorstator systems, rotating cavities and contra rotating discs are considered. International journal of heat and mass transfer 46. They predicted the heat transfer coefficients analytically by adapting the solution that nusselt 2 11 used for the film condensation under the influence. Methodologies elucidate experimental techniques most widely used for measurements in rotatingdisk systems of a heatmass transfer, such as naphthalene. Table 1 shows that rectangular parallel grooves enhances the rate of mass transfer at the rotating disc by a factor ranging from 1. Investigation of heat and mass transfer of rotating mhd. Numerical evaluation of heat transfer from rotating discs. The book describes results of investigations of a series of convective heatandmass transfer problems in rotatingdisk systems, namely, over free rotating disks, under conditions of transient heat transfer, solidbody rotation of fluid, orthogonal flow impingement onto a disk, swirl radial flow between parallel corotating disks, in conedisk systems and for prandtl and schmidt numbers larger than one. Heat and mass transfer in unsteady rotating fluid flow with binary chemical reaction and activation energy faiz g.
Mhd flow of fluid between stationary porous disk and solid rotating disk is studied by kumar et al. The purpose of this paper is to analyze hydromagnetic flow between two horizontal plates in a rotating system. Arrhenius activation energy and binary chemical reaction are the imperative features of the study of mass transfer. Effects of the rotation number on flow and heat transfer. International journal of heat and mass transfer 46 2003 22072218. Investigation on convective heat transfer over a rotating. Javed department of mathematics and statistics, international islamic university, islamabad 44000, pakistan. Heat and mass transfer in unsteady rotating fluid flow. On the mhd and slip flow over a rotating disk with heat transfer. Experiments on heat transfer in a thin liquid film flowing. I convective heat transfer and flow stability in rotating disk cvd reactors william s. Maximum heat transfer density rate enhancement from cylinders. The book describes results of investigations of a series of convective heat and mass transfer problems in rotating disk systems, namely, over free rotating disks, under conditions of transient heat transfer, solidbody rotation of fluid, orthogonal flow impingement onto a disk, swirl radial flow between parallel co rotating disks, in cone disk systems and for prandtl and schmidt numbers larger.
Local heat transfer characteristics in a single rotating. Modelling of convective heat and mass transfer in rotating. Rotating disk, convective heat transfer, irthermography, adiabatic wall temperature introduction the laminar flow due to an infinite fiat disk rotating in still air is one of the few exact solutions of the threedimensionalnavierstokesequations. Journal of heat transfer, transactions of the american society of mechanical engineers, vol.
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