Author: C. Frederick Hansen
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 36
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Solutions are presented for the conduction of heat through a semi-infinite gas medium having a uniform initial temperature and a constant boundary temperature. The coefficients of thermal conductivity and diffusivity are treated as variables, and the solutions are extended to the case of air at temperatures where oxygen dissociation occurs. These solutions are used together with shock-tube measurements to evaluate the integral of thermal conductivity for air as a function of temperature.
Author: C. Frederick Hansen
Publisher:
ISBN:
Category : Dissociation
Languages : en
Pages : 50
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Author:
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 36
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Author: Tzy-Cheng Peng
Publisher: BiblioGov
ISBN: 9781289271268
Category :
Languages : en
Pages : 42
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The theoretical value of the integral of thermal conductivity is compared with the experimental values from shock-tube measurements. The particular case considered is the one-dimensional nonsteady flow of heat through air at constant pressure. This approach has been previously described in NASA TR R-27. experiment was uncertain because of the large scatter in the experimental data. In this paper, an attempt is made to improve the correlation by use of a more refined calculation of the integral of thermal conductivity, and by use of improved experimental techniques and instrumentation. As a result of these changes, a much closer correlation is shown between the experimental and theoretical heat-flux potentials. This indicates that the predicted values of the coefficient of thermal conductivity for high-temperature air may be suitably accurate for many engineering needs, up to the limits of the test (4600 K).
Author: A. F. Lietzke
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 7
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Results are presented of a theoretical and experimental investigation heat transfer involving laminar natural convection of fluids enclosed between parallel walls oriented in the direction of the body force, where one wall is heated uniformly and the other is cooled uniformly. For the experimental work, parallel walls were simulated by using an annulus with an inner-to-outer diameter ratio near 1.
Author: Martin Sommerfeld
Publisher: Springer Science & Business Media
ISBN: 3642185401
Category : Science
Languages : en
Pages : 354
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Book Description
The book summarises the outcom of a priority research programme: 'Analysis, Modelling and Computation of Multiphase Flows'. The results of 24 individual research projects are presented. The main objective of the research programme was to provide a better understanding of the physical basis for multiphase gas-liquid flows as they are found in numerous chemical and biochemical reactors. The research comprises steady and unsteady multiphase flows in three frequently found reactor configurations, namely bubble columns without interiors, airlift loop reactors, and aerated stirred vessels. For this purpose new and improved measurement techniques were developed. From the resulting knowledge and data, new and refined models for describing the underlying physical processes were developed, which were used for the establishment and improvement of analytic as well as numerical methods for predicting multiphase reactors. Thereby, the development, lay-out and scale-up of such processes should be possible on a more reliable basis.
Author: Kandula Mastanaiah
Publisher:
ISBN:
Category : Drops
Languages : en
Pages : 360
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Author: Tzy-Cheng Peng
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 44
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Author: William Jeffris Williamson
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 66
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 926
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