Transient Heat Transfer In A Semitransparent Radiating Layer With Boundary Convection And Surface Reflections Nasa Tm 111963 May 30 1997
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Transient Heat Transfer In A Semitransparent Radiating Layer With Boundary Convection And Surface Reflections Nasa Tm 111963 May 30 1997
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Author :
language : en
Publisher:
Release Date : 1998
Transient Heat Transfer In A Semitransparent Radiating Layer With Boundary Convection And Surface Reflections Nasa Tm 111963 May 30 1997 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Combustion Of Energetic Materials
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Author : Kenneth K. Kuo
language : en
Publisher: Begell House Publishers
Release Date : 2002
Combustion Of Energetic Materials written by Kenneth K. Kuo and has been published by Begell House Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Combustion categories.
This edited book contains state-of-the-art information associated with energetic material combustion. There are twelve topical areas, including: Reaction Kinetics of Energetic Materials (Solid, Liquid, and Gel Propellants); Recycling of Energetic Materials; Combustion Performance of Hybrid and Solid Rocket Motors; Ignition and Combustion of Energetic Materials; Energetic Material Defects and Rocket Engine Flowfields; Metal Combustion; Pyrolysis and Combustion Processes of New Ingredients and Applications; Theoretical Modeling and Numerical Simulation of Combustion Processes of Energetic Materials; Combustion Diagnostic Techniques; Propellant and Rocket Motor Stability; Commercial Applications of Energetic Materials (Airbags, Gas Generators, etc.); and Thermal Insulation and Ablation Processes.
Agricultural Export Transportation Handbook
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Author : Ellen M. Welby
language : en
Publisher:
Release Date : 1997
Agricultural Export Transportation Handbook written by Ellen M. Welby and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Exports categories.
Cornwall Parish Registers
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Author :
language : en
Publisher:
Release Date : 1909
Cornwall Parish Registers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1909 with Church records and registers categories.
Radiation Effects In A Semitransparent Gray Coating Heated By Convection And Cooled By Radiation
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-19
Radiation Effects In A Semitransparent Gray Coating Heated By Convection And Cooled By Radiation written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-19 with categories.
A parametric study using a one dimensional model of a semitransparent gray thermal barrier coating was performed to gain an understanding of the role thermal radiation can play in the heat transferred. Some ceramic materials are semitransparent in the wavelength ranges were thermal radiation is important. Therefore, absorption, emission, and scattering of thermal radiation can affect the he at transfer through the coating. In this paper, a one dimensional layer was used to model the heat transfer process occurring, in a burner test rig. The semitransparent layer is heated by a hot gas flowing over its surface. The layer and substrate at a cooled by radiation to the surroundings. The back side of the substrate is insulated. The coating is assumed to be gray (absorption and scattering coefficients are not function of wavelength). An absorption coefficient of 0.3/cm and scatter a rig coefficients of 0 (no scattering) and 100/cm (isotropic scattering) were used. The thickness and thermal conductivity of the layer are varied. The results show that the temperatures are affected by the properties of the semitransparent .ever and the emissivity of the substrate. The substrate and surface temperatures are presented. The apparent temperature an optical pyrometer would read for the emitted energy is also given. An apparent thermal conductivity was calculated for the layer. Spuckler, Charles M. Glenn Research Center NASA/TM-2002-211554, NAS 1.15:211554, E-13329
The Effect Of An Arbitrary Surface Temperature Variation Along A Flat Plate On The Convective Heat Transfer In An Incompressible Turbulent Boundary Layer
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Author : Morris W. Rubesin
language : en
Publisher:
Release Date : 1951
The Effect Of An Arbitrary Surface Temperature Variation Along A Flat Plate On The Convective Heat Transfer In An Incompressible Turbulent Boundary Layer written by Morris W. Rubesin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1951 with Heat categories.
An analysis was performed to determine the effects on the rates of convective heat transfer produced by arbitrary variations of the surface temperature with distance along a flat plate. The analysis was confined to the case of a low-speed turbulent boundary layer on a flat plate oriented parallel to the free-stream velocity. It was found that a continuously variable surface temperature has, in general, a smaller effect on the local convective heat transfer than does a surface-temperature discontinuity.
Turbulent Boundary Layer Heat Transfer And Transition Measurements With Surface Cooling At Mach 6
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Author : Aubrey M. Cary
language : en
Publisher:
Release Date : 1970
Turbulent Boundary Layer Heat Transfer And Transition Measurements With Surface Cooling At Mach 6 written by Aubrey M. Cary and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Heat categories.
International Symposium On Transient Convective Heat Transfer
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Author : Faruk Arinç
language : en
Publisher: Begell House Publishers
Release Date : 1997-01-01
International Symposium On Transient Convective Heat Transfer written by Faruk Arinç and has been published by Begell House Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-01-01 with Heat categories.
Includes 51 paper presentations, lectures and a panel discussion that took place during a five-day International Symposium on convective heat transfer.
Heat Transfer In Thermal Radiation Absorbing And Scattering Media
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Author :
language : en
Publisher:
Release Date : 1960
Heat Transfer In Thermal Radiation Absorbing And Scattering Media written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with categories.
The problem of heat transfer from media that absorb and scatter thermal radiation was studied analytically, and the theory of thermal radiation is presented in a form useful for application to the radiant heat transfer problems. The basic equation of radiant heat transfer which governs the radiation field in a media that absorbs, emits, and scatters thermal radiation was derived. The mathematical analogy between thermal radiation and neutron transport is pointed out, and a few illustrations of the applicability of the solutions obtained for neutron transport problems to the radiative transfer problems are given. The derivation of the integral equations for radiant heat exchange in a geneal enclosure composed of a system of surfaces separated by an absorbing and scattering media are presented. The enclosure walls under consideration can reflect specularly and the scattering from the medium is not considered to be isotropic. The equation for the conservation of energy, including contributions due to thermal radiation, was derived by evaluating the energy transported into an imaginary closed surface fixed in space and then by applying Gauss's divergence theorem. The formulations developed are then used to gain insight into the problem by considering a few simple physical situations and obtaining numerical results for the grey case only. The Rosseland approximation for the radiant flux vector is employed in the study of Couette flow, and it is found that for large optical thicknesses the calculated temperature distributions agree well with those predicted by the exact formulation. Numerical solutions of the boundary layer equations for the flow of a radiating media along a wedge were obtained. The effect of radiation is to decrease the temperature gradient for both the hot and the cool walls; however, the heat transfer is affected only little. The validity of the diffusion approximation for radiation in boundary layer problems is limited, and should be used with caution only in situations where the mean free path of radiation is much smaller than the thermal bouadary layer thickness. The transport of radiant energy between two parallel plates separated by an absorbing and scattering media is studied. The temperature distributions were obtained by solving the nonhomogeneous Milne integral equation of the first kind. It was found that the polynomial approximation for the black body emissive power is satisfactory for all values of the optical thickness. The transport of energy by simultaneous conduction and radiation in a one-dimensional system was considered. A nonlinear integral equation governing the temperature distribution in an absorbing media was solved, and it is shown that the temperature distribution is strongly dependent on the optical thickness of the slab and on the dimensionless parameter, N, which determines the relative role of energy transfer by conduction to that by radiation. The presence of radintion generally increases the heat transfer by conduction. (auth).
Transient Conductive And Radiative Heat Transfer Through A Porous Layer With One Boundary Subject To A Time Varying Temperature Condition
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Author : Yung-Ming Hou
language : en
Publisher:
Release Date : 1986
Transient Conductive And Radiative Heat Transfer Through A Porous Layer With One Boundary Subject To A Time Varying Temperature Condition written by Yung-Ming Hou and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.