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Author : William A. Page
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (31 download)
Download or read book Shock-layer Radiation of Blunt Bodies at Reentry Velocities written by William A. Page and published by . This book was released on 1964 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William A. Page
Publisher :
ISBN 13 :
Total Pages : 41 pages
Book Rating : 4.:/5 (838 download)
Download or read book Shock-layer Radiation of Blunt Bodies written by William A. Page and published by . This book was released on 1964 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Canadian Armament Research and Development Establishment
Publisher :
ISBN 13 :
Total Pages : 35 pages
Book Rating : 4.:/5 (719 download)
Download or read book Radiation in Non-Equilibrium Shock Layers of Blunt Bodies in Hypersonic Flow written by Canadian Armament Research and Development Establishment and published by . This book was released on 1964 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Takeharu Sakai
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Calculation of Non-equilibrium Radiation from a Blunt Body Shock Layer written by Takeharu Sakai and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L. W. Spradley
Publisher :
ISBN 13 :
Total Pages : 43 pages
Book Rating : 4.:/5 (951 download)
Download or read book The Effects of Shock Layer Radiation and Viscous Coupling on the Total Heating Rate to a Reentering Blunt Body written by L. W. Spradley and published by . This book was released on 1968 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dikran S. Babikian
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Measured and Calculated Spectral Radiation from a Blunt Body Shock Layer in an Arc-jet Wind Tunnel written by Dikran S. Babikian and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L. E. Lasher
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (317 download)
Download or read book Effect of Shock Precursor Heating on Radiative Flux to Blunt Bodies written by L. E. Lasher and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Raymond K. Burns
Publisher :
ISBN 13 :
Total Pages : 414 pages
Book Rating : 4.:/5 (213 download)
Download or read book An Integral Method of Solution for a Hypersonic Blunt Body Shock Layer, Including Viscous and Nongray Radiation Effects written by Raymond K. Burns and published by . This book was released on 1968* with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D. Ellington
Publisher :
ISBN 13 :
Total Pages : 43 pages
Book Rating : 4.:/5 (11 download)
Download or read book Radiation Phenomena in Non-equilibrium Shock Layers of Blunt Bodies in Hypersonic Flow written by D. Ellington and published by . This book was released on 1964 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Walter B. Olstad
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (31 download)
Download or read book Blunt-body Stagnation-region Flow with Nongray Radiation Heat Transfer written by Walter B. Olstad and published by . This book was released on 1968 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: A singular perturbation solution to the blunt-body stagnation-region flow of an inviscid, radiating gas has been obtained by means of the Poincař-Lighthill-Kuo, or perturbation-of-coordinates, method. A number of results for a gray gas have been presented in order to provide some physical insight into the effects of various parameters on the shock-layer enthalpy profiles and the radiant heat-transfer rates. A nongray absorption-coefficient model was developed which includes, in an approximate way, the important vacuum-ultraviolet contributions of bound-free and line transitions. This model was used to obtain solutions pertinent to the case of reentry into the earth's atmosphere. While the results are restricted to small values of the radiation cooling parameter, which characterizes the relative importance of radiation and convection as energy-transport mechanisms, they cover broad ranges of vehicle velocity, altitude, and nose radius, which are of practical interest. The characteristic enthalpy variation of the model absorption coefficient was found to be nearly independent of altitude and nose radius for fixed vehicle velocity except for velocities lower than 10.67 km/sec. Thus it was possible to correlate certain quantities by plotting these quantities as functions of the nondimensional adiabatic radiant heat-transfer rate for various altitudes and nose radii at fixed vehicle velocity. Among the quantities correlated was the cooling factor (the ratio of the stagnation-point radiant heat-transfer rate to the adiabatic radiant heat-transfer rate). The cooling-factor correlation is particularly useful because it eliminates the need to perform nonadiabatic calculations whenever radiant heat-transfer rates are desired. Also correlated was the factor by which the convective heat-transfer rate is reduced because of radiation losses in the shock layer. Finally, upper-bound estimates were made of the effects of absorption of precursor radiation by the free-stream air on the radiant and convective heat-transfer rates.
Author :
Publisher :
ISBN 13 :
Total Pages : 540 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Technical Report written by and published by . This book was released on 1964 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jack Dougal Stephenson
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (31 download)
Download or read book Measurement of Optical Radiation from the Wake of Ablating Blunt Bodies in Flight at Speeds Up to 10 KM Per Second written by Jack Dougal Stephenson and published by . This book was released on 1965 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Linwood B. Callis
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (31 download)
Download or read book Solutions of Blunt-body Stagnation-region Flows with Nongray Emission and Absorption of Radiation by a Time-asymptotic Technique written by Linwood B. Callis and published by . This book was released on 1969 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: A second-order time-asymptotic solution to radiation-coupled stagnation-region flows is presented. The solution is applied to the hypervelocity flow over blunt vehicles of inviscid, nonconducting, equilibrium air, emitting and absorbing nongray radiation. Velocities, nose radii, and altitudes covered by the analysis are sufficient to bracket reentry trajectories of current interest. Radiative heat-transfer rates for the range of interest and typical profiles of pressure, density, enthalpy, temperature, and velocity are shown. The nature of time-asymptotic solution is discussed and it is shown o be a feasible means of achieving second-order accurate solutions to radiation-coupled shock-layer flows. Step-function models of the absorption coefficient are used in order to evaluate the divergence of the radiation flux vector. An analysis is carried out to determine what effect variations in the spectral complexity of the step model absorption coefficients used in the analysis will have on the thermodynamic and flow profiles of interest and on the nongray radiative heat-transfer rates. In this connection use is made of consistent model absorption coefficients having one to nine spectral steps with free-free, free-bound (including atomic line transitions), and molecular transitions taken into account. Relatively simple models of the absorption coefficient can be used with no significant loss of accuracy. An existing correlation for the cooling factor, the ratio of the radiation heat-transfer rate to the adiabatic radiation heat-transfer rate, is extended to larger velocities than heretofore considered.
Author :
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (319 download)
Download or read book NASA Technical Note written by and published by . This book was released on 1966 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : K. H. Wilson
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.:/5 (227 download)
Download or read book Inviscid, Nonadiabatic Flow about Blunt Bodies written by K. H. Wilson and published by . This book was released on 1964 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problem considered is that of determining the inviscid, nonadiabatic flow field which results when energy loss by radiation becomes significant. The approach taken is to include the radiation term in the energy equation and solve the resulting conservation equations for the flow past a blunt body. The direct blunt-body problem is solved using an integral method of solution. The flow field is determined in an iterative manner in which the shock shape from the previous iteration is used in the current iteration. Hence, in the final analysis, no a priori information about the shock shape is required. Results have been obtained for the flow about a sphere and a hemispherecone under conditions where large energy loss from the shock layer occurs. The nonadiabatic nature of such a flow was found to significantly reduce the shock layer thickness about the body and alter the enthalpy profiles within the shock layer. As expected, the radiative heating is reduced considerably from the adiabatic value for cases where large nonadiabatic effects are present.
Author :
Publisher :
ISBN 13 :
Total Pages : 440 pages
Book Rating : 4.:/5 (3 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher :
ISBN 13 :
Total Pages : 1156 pages
Book Rating : 4.E/5 ( download)
Download or read book A Selected Listing of NASA Scientific and Technical Reports for ... written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1964 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
