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Article
Transient heating of opaque and semitransparent materials by radiation during processing
Analysis is presented of transient heating of opaque and semitransparent (translucent) materials by external radiation sources. Such problems arise in materials processing and manufacturing applications. Dyna...
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Article
Numerical simulation of convective heat transfer to a radial free surface jet im**ing on a hot solid
The convective heat transfer between a circular free surface im**ing jet and a solid surface has been studied numerically. The thin liquid film formed on the surface has been assumed to be in non-turbulent ...
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Chapter
Radiation Heat Transfer in Materials Processing and Manufacturing
During the last decade, thermal design and simulation of a wide range of materials processing and manufacturing (MPM) operations has taken a more prominent role. Careful consideration of transport phenomena ha...
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Article
Inverse optimal design of the radiant heating in materials processing and manufacturing
Combined convective, conductive, and radiative heat transfer is analyzed during heating of a continuously moving load in the industrial radiant oven. A transient, quasi-three-dimensional model of heat transfer...
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Article
A thermal system model for a radiant-tube continuous reheating furnace
A thermal system mathematical model developed for a gas-fired radiant-tube continuous reheating furnace is discussed. The mathematical model of the furnace integrates submodels for combustion and heat transfer...
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Article
Measurement of the turbulent flow field in a free-surface jet of water
Measurements of the mean velocity and turbulence intensity are presented for a rectangular jet of water ejecting into a gaseous ambient. Data are reported for streamwise locations up to 30 nozzle widths from t...
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Article
Flow characteristics of anisotropic structures constructed with porous layers
Artificial structures, serving as the solid matrix of anisotropic porous media and satisfying the requirement needed for flow visualization, were constructed with the perforated Polypropylene plates in order t...
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Article
Momentum and heat transfer on a continuous flat surface moving in a parallel counterflow free stream
Heat transfer from a surface in motion relative to either a stationary or moving fluid occurs in many material processing applications such as hot rolling, extrusion, and drawing. In this study, an analysis ha...
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Article
A laminar boundary layer model of heat transfer due to a nonuniform planar jet im**ing on a moving plate
A theoretical model is developed of planar jet im**ement heat transfer on a moving plate. Boundary layer equations in their integral forms are used in order to include, both near and away from the stagnation...
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Article
Determination of specific heat and true thermal conductivity of glass from dynamic temperature data
A method to determine the true specific heat and true thermal conductivity for glass and other semitransparent materials from dynamic temperature data is presented. A unique fabrication technique to obtain hig...
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Article
Modeling and parametric studies of heat transfer in a direct-fired continuous reheating furnace
A mathematical system model of a direct-fired continuous reheating furnace has been developed. The furnace is modeled as several well-stirred gas zones with one-dimensional (1-D) heat conduction in the refract...
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Article
Modeling and parametric studies of heat transfer in a direct-fired batch reheating furnace
A mathematical systems model of a batch reheating furnace has been developed to assist the furnace design and heat treatment engineer. The furnace was modeled as a well-stirred enclosure with one-dimensional t...
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Chapter
Steady-State Natural Convection in a Rectangular Cavity Filled with Low Prandtl Number Fluids
Time-independent natural convection in a two-dimensional, rectangular cavity containing a low Prandtl fluid is solved numerically using a finite-difference method. The numerical results reported in the paper w...
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Chapter
Direct Absorption Solar Radiation Collection Systems
The present article discusses the direct (solar radiation) absorption collection system concepts. A number of different solar energy collection systems such as shallow solar ponds, volume trap, free-flow, blac...
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Chapter
Solar Radiation Transfer in Semitransparent Materials
The present article discusses radiation transfer in materials used in solar energy collection systems. The review is largely focused on semitransparent solids such as different glasses which are used as optica...
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Article
Heat transfer during the melting of ice around a horizontal, isothermal cylinder
An experimental investigation of the melting of ice around a horizontal, isothermal cylinder is performed. Emphasis is placed on interpreting the heat transfer mechanisms which control solid-liquid interface p...
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Article
Interaction of external and double-diffusive convection in linearly salt-stratified systems
A series of experiments has been performed for a linearly salt-stratified system heated from below. The experiments were intended to investigate the relative influence of external and double-diffusive convecti...
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Article
Interaction of heat transfer by conduction and radiation in a nongray planar medium
This paper considers the problem of the steady energy transfer due to combined effects of conduction and radiation in a medium with frequency dependent properties. The particular problem studied is the one-dim...
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Chapter and Conference Paper
Radiative Characteristics of Cryodeposits for Room Temperature Black Body Radiation
Problems associated with the presence of condensed gases on low-temperature surfaces recently have begun to receive attention. The presence of soiid gas films could significantly change the radiative character...
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Article
Experimental study of steady and transient natural convection heat transfer of mercury
An experimental investigation of transient and steady-state natural convection in a narrow vertical rectangular channel following a step-change in uniform wall-heat-flux is presented. The construction and inst...
