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Numerical Investigation Of Laminar Flow And Heat Transfer In Circular Duct With Twisted Tape Inserted For Non Newtonian Fluid
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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 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.
Download or read book Physics Briefs written by and published by . This book was released on 1984-07 with total page 1526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fluid Mechanics and Fluid Power (Vol. 1) by : Suvanjan Bhattacharyya
Download or read book Fluid Mechanics and Fluid Power (Vol. 1) written by Suvanjan Bhattacharyya and published by Springer Nature. This book was released on 2023-05-10 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the select proceedings of the 48th National Conference on Fluid Mechanics and Fluid Power (FMFP 2021) held at BITS Pilani in December 2021. It covers the topics such as fluid mechanics, measurement techniques in fluid flows, computational fluid dynamics, instability, transition and turbulence, fluid‐structure interaction, multiphase flows, micro- and nanoscale transport, bio-fluid mechanics, aerodynamics, turbomachinery, propulsion and power. The book will be useful for researchers and professionals interested in the broad field of mechanics.
Book Synopsis Advances in Fluid and Thermal Engineering by : Basant Singh Sikarwar
Download or read book Advances in Fluid and Thermal Engineering written by Basant Singh Sikarwar and published by Springer Nature. This book was released on 2023-07-11 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises the select proceedings of the 3rd Biennial International Conference on Future Learning Aspects of Mechanical Engineering (FLAME-2022). It aims to provide a comprehensive and broad-spectrum picture of state-of-the-art research and development in thermal and fluid engineering. Various topics covered include flow analysis, thermal systems, flow instability, renewable energy, hydel and wind power systems, heat transfer augmentation, biomimetic/ bioinspired engineering, heat pipes, heat pumps, multiphase flow/ heat transfer, energy conversion, thermal hydraulics of nuclear systems, refrigeration, and HVAC systems, computational fluid dynamics, fluid-structure interaction, etc. This volume will prove a valuable resource for those in academia and industry.
Book Synopsis Advances in Heat Transfer by : James P. Hartnett
Download or read book Advances in Heat Transfer written by James P. Hartnett and published by Elsevier. This book was released on 2002-07-25 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Heat Transfer
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.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1987 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Convective Heat Transfer in Ducts: The Integral Transform Approach by : C.A.C.. Santos
Download or read book Convective Heat Transfer in Ducts: The Integral Transform Approach written by C.A.C.. Santos and published by Editora E-papers. This book was released on 2001 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of Fully Developed Laminar Flow and Heat Transfer in Isothermal Helically Twisted Tubes with Elliptical Cross-sections by : Fady Bishara
Download or read book Numerical Simulation of Fully Developed Laminar Flow and Heat Transfer in Isothermal Helically Twisted Tubes with Elliptical Cross-sections written by Fady Bishara and published by . This book was released on 2010 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Periodically fully-developed swirling laminar flows in twisted tubes with elliptical cross sections are numerically simulated. The tubes are helically twisted along the axis perpendicular to their cross-section. The helical twist geometry is described by the 180 degree twist ratio and the elliptical cross-section is described by the ellipse aspect ratio. The geometries considered for this study have twist ratios with values {3,4.5,6} and ellipse aspect ratios with values {0.3, 0.5, 0.7}. Constant-property flow with a nominal Prandtl number of 3 (e.g. water at 60 degree Celsius) and Reynolds numbers in the range 10 The analysis quantifies the improvement in the Nusselt number as well as the increase in friction factor in order to map the effective heat transfer enhancement due to the twisted-tube-geometry-induced swirl flows. To this effect, the numerical results are compared, for a given aspect ratio, with the case of a straight elliptical tube (i.e. twist ratio tends to infinity) for which well established correlations are available. The results were also compared with those of circular tubes with twisted tape inserts for any given twist ratio. Numerical results show that the friction factor and the Nusselt number are strong functions of the twist ratio, aspect ratio and the Reynolds number. The increase in the friction factor and Nusselt number is higher for more tightly twisted tubes and for tubes with a lower ellipse aspect ratio. For Reynolds numbers below 100, the heat transfer results do not deviate significantly from the straight-tube values, but at higher values of Re, significant enhancement in heat transfer is evident for all twist ratios considered here. For example, for tubes with aspect ratio alpha = 0.3 and a twist ratio y = 3, the enhancement of the Nusselt number relative to the straight tube Nusselt number Nu/Nu(y=infinity) = 2.7. For the same aspect ratio, but with a twist ratio $y=6$, the enhancement Nu/Nu(y=infinity) = 2. On the other hand, for nearly round cross sections (e.g. alpha = 0.7) and nearly straight tubes (e.g. y=6) the enhancement Nu/Nu(y=infinity) ~ 1; i.e. there is no enhancement. The friction factor and Nusselt number results provided in this paper will give practicing engineers the necessary data to integrate twisted elliptical tubes in various heat transfer applications.
Download or read book The Engineering Index Annual written by and published by . This book was released on 1992 with total page 2264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.
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 The Effect of Transverse Temperature Gradients on the Heat Transfer and Friction for Laminar Flow of Gases by : Monty E. Davenport
Download or read book The Effect of Transverse Temperature Gradients on the Heat Transfer and Friction for Laminar Flow of Gases written by Monty E. Davenport and published by . This book was released on 1962 with total page 124 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 Theoretical Chemical Engineering Abstracts by :
Download or read book Theoretical Chemical Engineering Abstracts written by and published by . This book was released on 1986 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Investigation of Turbulent Fluid Flow and Heat Transfer in Complex Ducts by : Masoud Rokni
Download or read book Numerical Investigation of Turbulent Fluid Flow and Heat Transfer in Complex Ducts written by Masoud Rokni and published by . This book was released on 1998 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laminar Fully-developed Fluid Flow and Heat Transfer in a Duct Containing a Twisted-tape Insert by : Cameron D. Hall
Download or read book Laminar Fully-developed Fluid Flow and Heat Transfer in a Duct Containing a Twisted-tape Insert written by Cameron D. Hall and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
