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Wednesday, July 22, 2020 | History

1 edition of Investigation of heat transfer in straight and curved rectangular ducts found in the catalog.

Investigation of heat transfer in straight and curved rectangular ducts

by James Claude Ballard

  • 146 Want to read
  • 23 Currently reading

Published by Naval Postgraduate School in Monterey, California .
Written in English

    Subjects:
  • Mechanical engineering

  • Edition Notes

    ContributionsNaval Postgraduate School (U.S.)
    The Physical Object
    Pagination1 v. :
    ID Numbers
    Open LibraryOL25411144M

    examine the convective heat transfer in straight and curved ducts of rectangular cross section. The experimental con-figuration was modeled as infinite parallel plates with one wall at BLa constant heat flux and the opposite wall adia-batic. Experiments were conducted at steady state for turbulent flow using average Nusselt numbers to compare the. Turbulent heat transfer in a square duct M. Hirota and H. Fujita Department of Mechanical Engineering, Nagoya University, Chikusa-ku, Nagoya, Japan H. Yokosawa School of Informatics and Sciences, Nagoya University, Chikusa-ku, Nagoya, Japan H. Nakai Chubu Electric Power Co. Ltd., Higashi-ku, Nagoya, Japan H. Itoh Nippon Steel Corp., Chiyoda-ku, Tokyo, Japan The characteristics of the flow Cited by:

    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. Numerical Investigation of the Thermally Developing Flow in a Curved Elliptic Duct With Internal Fins Fully Developed Viscous-Flow Heat Transfer in Curved Circular Tubes With Uniform Wall Temperature,” Effects of Pin-Fin Height on Flow and Heat Transfer in a Rectangular by: 6.

    The heat transfer coefficient is increased along with the velocity increases both plain duct and. Fig. 4. Effect of Velocity and Heat transfer coefficient. Duct with inserts. The vortex flows could wash up the flow trapped in the duct corner regions normally act as ineffective heat transfer areas,leading to higher heat transfer rate in the duct. In the following, Norouzi et al. [16][17][18] investigated the heat transfer related to the creeping and non-creeping flows of the viscoelastic fluid in a curved pipe and rectangular duct by the.


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Investigation of heat transfer in straight and curved rectangular ducts by James Claude Ballard Download PDF EPUB FB2

The convective heat transfer in straight and curved ducts of rectangular cross-section. The experimental configuration was modeled as infinite parallel plates with one wall at a constant temperature and the opposite wall adiabatic. The experiments were conducted at steady state for tur-bulent flow.

Average Nusselt numbers were used to compare the heat transfer characteristics of the straight and curved Size: 2MB. An experimental investigation was conducted to examine convection heat transfer in a duct of rectangular cross-section, having both a straight and curved flow passage.

One wall was kept at a constant temperature, with the opposite wall being : Robert George Holihan. A rectangular cross section channel with both straight and curved test sections was used to investigate the effect of Taylor-Goertler vortices on the heat transfer from the curved section by comparing the results with those obtained in the straight by: 2.

Experimental investigations have been conducted to examine the general problem of convective heat transfer in a rectangular cross section channel with both straight and curved passages.

The experimental configuration was modeled as infinite parallel plates with one wall at a constant heat flux and the opposite wall adiabatic. An experimental investigation was conducted to examine convection heat transfer in a duct of rectangular cross-section, having both a straight and curved flow.

Abstract Approved for public release; distribution is unlimitedExperimental investigations have been conducted to examine the general problem of convective heat transfer in a rectangular cross section channel with both straight and curved : III James Claude Ballard. TABLEOFSYMBOLS Symbol Ac *PL Cp d De Dh Fwo-wi h Kair K INS m Nu Nu Nu c Nu" s Pr P q Qair QLi Meaning crosssectionalareaofthechannel areaofthewallheater specificheatofairatconstant pressure Units m2 m2 KJ/Kg°C m m W/m2°C W/m°C W/m°C Kg/sec Lo heightofthechannel Deannumber.

LISTOFFIGURES Figure1 SchematicofTaylorvorticesbetween cylinders Figure2. SchematicofTaylor-Gortlervortices betweenparallelplates 14 Figure3. Calhoun: The NPS Institutional Archive Theses and Dissertations Thesis Collection Experimental investigation of turbulent heat transfer in straight and curved rectangular ducts.

Investigation of Heat Transfer in Straight and Curved Rectangular Ducts by James Claude Ballard, III Lieutenant, United States Navy B.S.M.E., Rensselaer Polytechnic Institute, Submitted in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE IN MECHANICAL ENGINEERING from the NAVAL POSTGRADUATE SCHOOL September Author: James Claude Ballard.

Approved for public release; distribution is unlimitedA rectangular cross section channel with both straight and curved test sections was used to investigate the effect of Taylor-Goertler vortices on the heat transfer from the curved section by comparing the results with those obtained in the straight section The flow was heated through the Joulean heating of one of the walls which was made of Author: Mario do Carmo Durao.

An experimental investigation was conducted to examine the convective heat transfer in straight and curved ducts of rectangular cross section. The experimental configuration was modeled as infinite parallel plates with one wall at a constant temperature and the opposite wall by: 1.

An experimental investigation was conducted to examine the convective heat transfer in straight and curved ducts of rectangular cross-section. The experimental configuration was modeled as infinite parallel plates with one wall at a constant temperature and the opposite wall adiabatic.

An experimental apparatus has been constructed and tested to examine the convective heat transfer in straight and curved ducts of rectangular cross-section. The channel can be configured with both walls independently heated at a constant heat flux, or one wall at a constant heat.

Hwang, J.J.: Heat transfer-friction characteristic comparison in rectangular ducts with slit and solid ribs mounted on one wall.

Heat Transf.– () CrossRef Google Scholar Liou, T.M., Chen, S.H., Shih, K.C.: Numerical simulation of turbulent flow field and heat transfer in a two-dimensional channel with periodic slit ribs Cited by: 3.

Present experimental investigation examines the local heat transfer and friction factor characteristics of pentagonal ribs mounted on bottom heated wall of a rectangular channel.

The emphasis is towards assessing and analysing the potential impact of varying chamfering angle (0 to 20°) and rib pitch to height ratio (6 to 12) on the overall Cited by: 7. unsteady heat transfer in sharp ° bends is important. The design and simulation are related to concept of fluid mechanics, heat transfer and thermodynamics.

Simulation study has been conducted on the response of turbulent flow in a rectangular duct in order to evaluate the heat transfer rate along by: 1. An experimental investigation has been conducted to examine the convective heat transfer in straight and curved ducts of rectangular cross section.

The experimental configuration was modeled as infinite parallel plates with one wall at a constant heat flux and the opposite wall adiabatic. heat transfer in straight and curved ducts of rectangular cross-section. The channel can be configured with both walls independently heated at a constant heat flux, or one wall at a constant heat flux and the opposite wall adiabatic.

Local and average Nusselt numbers can be calculated, and used to evaluate the effect of curvature on heat : George Gregory. Galyo. In the following, Norouzi et al. [16][17] [18] investigated the heat transfer related to the creeping and non-creeping flows of the viscoelastic fluid in a curved pipe and rectangular duct by the.

Forced convection heat transfer in a coiled annular duct was investigated experimentally. Average heat transfer coefficients were obtained for both laminar and transition flows. Two coiling diameters and two annulus radius ratios were used in the study. The data was correlated with Dean number and Reynolds separately and compared with the available studies of coiled circular tubes and straight Author: S.

Garimella, R. N. Christensen, D. E. Richards.Rectangular fins of different height were constructed and experimental investigation of heat transfer and flow with arrays of rectangular fins was conducted. Effect of velocity, attack angle, fin height and pitch ratio on local heat transfer coefficients is : Islam, I.

Barsoum.Sandeep Kumar Karolelshwar Singh, Heat Transfer and Friction Behaviours in Rectangular Duct with two Different Ribs, JJSTE -International Journal of Science Technology & Engineering, Volume I.