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1 edition of Experimental investigation of turbulent heat transfer in straight and curved rectangular ducts found in the catalog.

Experimental investigation of turbulent heat transfer in straight and curved rectangular ducts

Steven Floyd Daughety

Experimental investigation of turbulent heat transfer in straight and curved rectangular ducts

by Steven Floyd Daughety

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

    Subjects:
  • Mechanical engineering

  • ID Numbers
    Open LibraryOL25515048M

    Experimental investigation of turbulent heat transfer in straight and curved rectangular duct Year: OAI identifier: oai:   To quantify the wall heat transfer, the wall heat transfer coefficient and its dimensionless form the Nusselt number is utilized, shown in Eq.. (3) Nu = h d h λ. Below a few single-phase heat transfer correlations are introduced for comparison. Their primary focus are straight tubes with turbulent flow characteristics.

    Mehdi Ghobadi, Yuri Stephan Muzychka, A Review of Heat Transfer and Pressure Drop Correlations for Laminar Flow in Curved Circular Ducts, Heat Transfer Engineering, /, 37, 10, (), ().   For curved rectangular ducts, Ko et al. proposed to split the overall flow entropy into individual contributions from heat transfer and fluid viscous friction. The relative magnitudes of these components were appraised to determine the heat or viscous-biased irreversibility in the flow domain.

    Sudo, Sumida and Hibara [2] reviewed the experimental studies on curved ducts of both circular and rectangular cross-sections. Their review also included the numerical studies in the s such as.   Rectangular ducts are widely used in heat transfer devices, for instance, in compact heat exchangers, gas turbine cooling systems, cooling channels in combustion chambers and nuclear reactors. Forced turbulent heat convection in a square or rectangular duct is one of the fundamental problems in the thermal science and fluid mechanics.


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Experimental investigation of turbulent heat transfer in straight and curved rectangular ducts by Steven Floyd Daughety Download PDF EPUB FB2

Calhoun: The NPS Institutional Archive Theses and Dissertations Thesis Collection Experimental investigation of turbulent heat transfer in straight and curved rectangular ducts. Experimental Investigation of Turbulent Heat Transfer in Straight and Curved Rectangular Ducts by Steven Floyd Daughety Lieutenant, United States Navy B.S., United States Naval Academy, Submitted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN MECHANICAL ENGINEERING from the NAVAL POSTGRADUATE SCHOOL September 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. The experiments were conducted at steady state for turbulent flow.

Average Nusselt numbers were used to compare the heat transfer characteristics of the straight and curved sections. An illustration of an open book. Books. An illustration of two cells of a film strip. Video An illustration of an audio speaker. Experimental investigation of turbulent heat transfer in straight and curved rectangular ducts.

Item Preview remove-circlePages:   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 Author: J. Wilson. 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. Approved for public release; distribution is unlimitedAn experimental investigation was conducted to examine the convective heat transfer in straight and curved ducts of rectangular cross-section.

The experimental configuration was modeled at infinite parallel plates with one wall at a constant temperature and the opposite wall adiabatic. Experimental investigation of turbulent heat transfer in straight and curved rectangular ducts. By George Gregory.

Galyo distribution is unlimitedAn 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. An experimental investigation was conducted to examine convection heat transfer in a duct of rectangular cross-section, having both a straight and curved flow Skip to main content See what's new with book lending at the Internet Archive.

English 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. 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 rectangular. Key Words: Key word1, Key.

Experimental Investigation of Turbulent Heat Transfer in Straight and Curved Rectangular Ducts by George Gregory Galyo Lieutenant, United States Navy B.S., United States Naval Academy, Submitted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN MECHANICAL ENGINEERING.

The essential ideas of investigations of turbulent flow in a straight rectangular duct are chronologically presented. Fundamentally significant experimental and theoretical studies for. The turbulent flow and heat transfer is governed by continuity, momentum and energy equations.

Predicting turbulence and heat transfer in 3-D curved ducts. Experimental investigation on. The present study deals with the numerical prediction of turbulent flow and heat transfer in a aspect ratio rectangular duct with ribs on the two shorter sides.

The ribs are of square cross section, staggered and aligned normal (90 deg) to the main flow direction. 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.

Heat transfer and flow structure are described in a channel with a straight portion followed by a portion with mild curvature at Dean numbers from to The channel aspect ratio is 40, radius ratio isand the ratio of shear layer thickness to channel inner radius is Flow and heat transfer characteristics in curved ducts are different from that of straight ducts.

A numerical study of a steady and three dimensional laminar flow in a o curved square duct with. An experimental investigation on turbulent heat transfer and friction loss behaviors of airflow through a constant heat-fluxed channel fitted with different heights of triangular ribs was conducted by Thianpong et al with AR = 10 and height H = 30 mm with three uniform rib heights, e = 4, 6 and 8 mm and one non-uniform rib height e = 4, 6 mm alternately for a single rib pitch p = 40 mm.

Experiments were performed to ascertain the single-phase heat transfer enhancement provided by streamwise curvature. Curved and straight rectangular flow channels were fabricated with identical × mm cross-sections and mm heated lengths in which heat was applied to a mm radius concave wall in the curved channel and a side wall in the straight.

EXPERIMENTAL INVESTIGATION OF TURBULENT HEAT TRANSFER IN STRAIGHT AND CURVED RECTANGULAR DUCTS. By B Eiieeiieeiiee, W B Y Dt and Joel L.

Wilson El. Abstract. Thesis Advisor: M. D. Kelleher Approved for public release; distribution unlimited. *.-*Original colotd Pla~tes; All PTZC reprodiuctw ,0 10zns w1l1 be 14 black and 28Z.More in detail, their experimental study revealed that under laminar flow regime ( straight channel or section, the heat transfer performances deteriorate along the flow direction because the flow becomes more regular and the boundary layer thickens, so that temperature gradients become increasingly small.

However, by.Experimental Investigation of Turbulent Heat Transfer in Straight and Curved Rectangular Ducts." by Joel L. Wilson Lieutenant, United States Navy B.S., United States Naval Academy, Submitted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE IN MECHANICAL ENGINEERING from the NAVAL POSTGRADUATE SCHOOL December