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An Analysis Of Laminar Flow Heat Transfer In Uniform Temperature Circular Tubes With Tape Inserts
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Book Synopsis An Analysis of Laminar Flow Heat Transfer in Uniform Temperature Circular Tubes with Tape Inserts by : Raj Mitra Manglik
Download or read book An Analysis of Laminar Flow Heat Transfer in Uniform Temperature Circular Tubes with Tape Inserts written by Raj Mitra Manglik and published by . This book was released on 1986 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laminar Flow Forced Convection in Ducts by : R. K. Shah
Download or read book Laminar Flow Forced Convection in Ducts written by R. K. Shah and published by Academic Press. This book was released on 2014-06-28 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laminar Flow Forced Convection in Ducts is a sourcebook for compact heat exchanger analytical data. This book describes the analytical solutions for laminar fluid flow and forced convection heat transfer in circular and noncircular pipes, including applicable differential equations and boundary conditions involving velocity and temperature problems of fluid flow. The book also discusses fluid flow—how much power is required to pump fluids through the heat exchanger, as well as the heat transfer—the determination of q" distribution, and the temperature of fluid and walls. The text also analyzes the coolant or heat transfer fluid flows in a nuclear power reactor composed of a bundle of circular section fuel rods located inside a round tube. R.A. Axford addresses fluid flow and heat transfers results for the rod bundle geometry in "Heat Transfer in Rod Bundles." The book also provides an overview and guidelines that can be used for the designer and the applied mathematician. This book is suitable for engineers working in electronics, aerospace, instrumentation, and biomechanics that use cooling or heating exchanges or solar collection systems.
Book Synopsis Analysis of Turbulent Flow and Heat Transfer in Noncircular Passages by : Robert G. Deissler
Download or read book Analysis of Turbulent Flow and Heat Transfer in Noncircular Passages written by Robert G. Deissler and published by . This book was released on 1959 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laminar Flow Heat Transfer in Short Circular Tubes by : John Harry Lundell
Download or read book Laminar Flow Heat Transfer in Short Circular Tubes written by John Harry Lundell and published by . This book was released on 1955 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Modeling of Laminar Swirl Flows and Heat Transfer in Circular Tubes with Twisted-tape Inserts by :
Download or read book Computational Modeling of Laminar Swirl Flows and Heat Transfer in Circular Tubes with Twisted-tape Inserts written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A numerical study is carried out to predict the velocity and temperature distributions in fully developed, constant property, laminar flows in tubes containing twisted-tape inserts. The tape inserts are characterized by the twist ratio y (ratio of 180ʻ twist pitch of the tape H to the tube inner diameter d), and the ratio of tape thickness d to the tube diameter, d / d . The swirl flow is simulated by following the helically twisted flow path in the partitioned tube represented by a semi-circular cross-section geometry. In this model, the tape thickness is neglected (d = 0), which is a reasonable first-order approximation as d / d? [10 -2] for most inserts used in practice. For the numerical solution of the velocity problem, the stream function and vorticity formulation is employed. The corresponding non-linear governing differential equations for the stream function, vorticity, axial velocity and temperature distributions are discretized using the finite control-volume method. This procedure essentially retains the conservative forms of the governing equations, and provides second-order discretization accuracy for the numerical solution. For the heat transfer problem both the uniform wall temperature (UWT) and uniform heat flux (UHF) boundary conditions at the tube wall are considered. In addition, two variations of the tape surface condition are considered, namely, uniform temperature and zero heat flux. These two cases model the tape as having infinite and zero fin efficiency, respectively. Results for the variations in the velocity and temperature fields with flow Reynolds number Re and tape twist ratio y are presented; the temperature distributions also reflects the influence of fluid Prandtl number Pr. The twisted-tape induced swirl flow field is characterized by a single longitudinal vortex that breaks up into two counter-rotating helical vortices with increasing Re or decreasing y . Correspondingly, both the friction factor f and Nusselt number Nu increase substantially; in the case of heat transfer, Nusselt number also increases with Pr. The results for f and Nu are found to agree very well with the respective Manglik and Bergles (1993) correlations. This verifies the scaling of swirl flow effects by the parameter Sw as proposed by them.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Analysis of Turbulent Heat Transfer, Mass Transfer, and Friction in Smooth Tubes at High Prandtl and Schmidt Numbers by : Robert G. Deissler
Download or read book Analysis of Turbulent Heat Transfer, Mass Transfer, and Friction in Smooth Tubes at High Prandtl and Schmidt Numbers written by Robert G. Deissler and published by . This book was released on 1954 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: The expression for eddy diffusivity from a previous analysis was modified in order to account for the effect of kinematic viscosity in reducing the turbulence in the region close to a wall. By using the modified expression, good agreement was obtained between predicted and experimental results for heat and mass transfer at Prandtl and Schmidt numbers between 0.5 and 3000. The effects of length-to-diameter ratio and of variable viscosity were investigated for a wide range of Prandtl numbers.
Book Synopsis Heat Transfer to Laminar Non-Newtonian Flow in a Circular Tube with Variable Circumferential Wall Temperature Or Heat Flux by : Robert M. Inman
Download or read book Heat Transfer to Laminar Non-Newtonian Flow in a Circular Tube with Variable Circumferential Wall Temperature Or Heat Flux written by Robert M. Inman and published by . This book was released on 1965 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Transient Heat Transfer in Laminar Flow in the Entrance Region of Tubes with Heat Capacity by : Vedat S. Arpaci
Download or read book Transient Heat Transfer in Laminar Flow in the Entrance Region of Tubes with Heat Capacity written by Vedat S. Arpaci and published by . This book was released on 1959 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Solutions for Laminar Flow Heat Transfer in Circular Tubes by : Stanford University. Department of Mechanical Engineering
Download or read book Numerical Solutions for Laminar Flow Heat Transfer in Circular Tubes written by Stanford University. Department of Mechanical Engineering and published by . This book was released on 1953 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analytical and Experimental Study of Compressible Laminar-flow Heat Transfer and Pressure Drop of a Gas in a Uniformly Heated Tube by : Alden F. Presler
Download or read book Analytical and Experimental Study of Compressible Laminar-flow Heat Transfer and Pressure Drop of a Gas in a Uniformly Heated Tube written by Alden F. Presler and published by . This book was released on 1971 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Laminar Flow Forced Convection Heat Transfer Behavior of a Phase Change Material Fluid by : Gurunarayana Ravi
Download or read book Study of Laminar Flow Forced Convection Heat Transfer Behavior of a Phase Change Material Fluid written by Gurunarayana Ravi and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The heat transfer behavior of phase change material fluid under laminar flow conditions in circular tubes and internally longitudinal finned tubes are presented in this study. Two types of boundary conditions, including uniform axial heat flux with constant peripheral temperature and uniform axial and peripheral temperature, were considered in the case of circular tubes. An effective specific heat technique was used to model the phase change process assuming a hydrodynamically fully-developed flow at the entrance of the tube. Results were also obtained for the phase change process under hydro dynamically and thermally fully developed conditions. In case of a smooth circular tube with phase change material (PCM) fluid, results of Nusselt number were obtained by varying the bulk Stefan number. The Nusselt number results were found to be strongly dependent on the Stefan number. In the case of a finned tube two types of boundary conditions were studied. The first boundary condition had a uniform axial heat flux along the axis of the tube with a variable temperature on the peripheral surface of the tube. The second boundary condition had a constant temperature on the outer surface of the tube. The effective specific heat technique was again implemented to analyze the phase change process under both the boundary conditions. The Nusselt number was determined for a tube with two fins with different fin height ratios and fin thermal conductivity values. It was determined that the Nusselt number was strongly dependent on the Stefan number, fin thermal conductivity value, and height of the fins. It was also observed that for a constant heat axial flux boundary condition with peripherally varying temperature, the phase change slurry with the internally finned tube performed better than the one without fins. A similar trend was observed during the phase change process with internal fins under the constant wall temperature boundary condition.
Book Synopsis Numerical Investigation of Laminar Flow and Heat Transfer in Circular Duct with Twisted Tape Inserted for Non-Newtonian Fluid by : An Fu
Download or read book Numerical Investigation of Laminar Flow and Heat Transfer in Circular Duct with Twisted Tape Inserted for Non-Newtonian Fluid written by An Fu and published by . This book was released on 2016 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational modeling of fully developed laminar convection of shear thinning fluids in a straight circular pipe with a twisted tape insert is presented in this thesis. The non-Newtonian behavior is modeled by purely viscous power-law and modified power-law relationships. The twisted tape geometry is defined by twist ratio y and the non-Newtonian fluid is characterized by the power-law index n . Because of symmetry between both sides of the tape insert, only one half of the domain consisting of helically twisted semi-circular cross-sectional geometry is modeled. The governing equations of mass and momentum conservation are transformed in terms of stream function and vorticity. The vorticity transport and stream function equations are solved simultaneously with the axial velocity equation and the energy conservation equation using a finite volume method. Both uniform wall temperature (UWT) and uniform heat flux (UHF) boundary conditions are considered. The governing equation are solved with varying Reynolds number (100
Book Synopsis Summary of Experiments and Analysis for Gas Flow Heat Transfer and Friction in Circular Tubes by : Stanford University. Department of Mechanical Engineering
Download or read book Summary of Experiments and Analysis for Gas Flow Heat Transfer and Friction in Circular Tubes written by Stanford University. Department of Mechanical Engineering and published by . This book was released on 1954 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Heat Transfer by : Kambiz Vafai
Download or read book Numerical Heat Transfer written by Kambiz Vafai and published by . This book was released on 1990 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Turbulent Heat Transfer and Flow in the Entrance Regions of Smooth Passages by : Robert G. Diessler
Download or read book Analysis of Turbulent Heat Transfer and Flow in the Entrance Regions of Smooth Passages written by Robert G. Diessler and published by . This book was released on 1953 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: A previous analysis for fully developed turbulent heat transfer and flow with variable fluid properties is extended and applied to the entrance regions of smooth tubes and parallel flat plates. Integral heat-transfer and momentum equations are used for calculating the thicknesses of the thermal and flow boundary layers. The effect of variable properties is determined for the case of uniform heat flux, uniform initial temperature distribution, and fully developed velocity distribution. A number of ther cases in which the fluid properties are considered constant are analyzed. The predicted Nusselt numbers for air with a uniform wall temperature and uniform initial temperature and velocity distributions agree closely with experimentally determined values.
Book Synopsis The Influence of Temperature Dependent Properties on Gas Flow Heat Transfer in Circular Tubes by : William Burns Nicoll
Download or read book The Influence of Temperature Dependent Properties on Gas Flow Heat Transfer in Circular Tubes written by William Burns Nicoll and published by . This book was released on 1959 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
