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Empirical Stagnation Point Heat Transfer Relation In Several Gas Mixtures At High Enthalpy Levels
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Book Synopsis Empirical Stagnation-point Heat-transfer Relation in Several Gas Mixtures at High Enthalpy Levels by : Ernest V. Zoby
Download or read book Empirical Stagnation-point Heat-transfer Relation in Several Gas Mixtures at High Enthalpy Levels written by Ernest V. Zoby and published by . This book was released on 1968 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A General Stagnation-point Convective-heating Equation for Arbitrary Gas Mixtures by : Kenneth Sutton
Download or read book A General Stagnation-point Convective-heating Equation for Arbitrary Gas Mixtures written by Kenneth Sutton and published by . This book was released on 1971 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: The stagnation-point convective heat transfer to an axisymmetric blunt body for arbitrary gases in chemical equilibrium was investigated. The gases considered were base bases of nitrogen, oxygen, hydrogen, helium, neon, argon, carbon dioxide, ammonia, and methane and 22 gases mixtures composed of the base gases. In the study, enthalpies ranged from 2.3 to 116.2 MJ/kg, pressures ranged from 0.001 to 100 atmospheres, and the wall temperatures were 300 and 1111 K. A general equation for the stagnation-point convective heat transfer in base gases and gas mixtures was derived and is a function of the mass fraction, the molecular weight, and a transport parameter of the base gases. The relation compares well with present boundary-layer computer results and with other analytical and experimental results. In addition, the analysis verified that the convective heat transfer in gas mixtures can be determined from a summation relation involving the heat-transfer coefficients of the base gases. The basic technique developed for the prediction of stagnation-point convective heating to an axisymmetric blunt body could be applied to other heat-transfer problems.
Download or read book NASA Technical Note written by and published by . This book was released on 1974 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Report written by and published by . This book was released on 1971 with total page 1054 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 :478 pages Book Rating :4.F/5 ( download)
Book Synopsis NASA Scientific and Technical Reports by : United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on 1968 with total page 478 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 :470 pages Book Rating :4.E/5 ( download)
Book Synopsis A Selected Listing of NASA Scientific and Technical Reports by : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Download or read book A Selected Listing of NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1969 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1968 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Char Formation and Surface Recession of a Composite Ablation Material with a Silicone-resin Base by : Allen G. McLain
Download or read book Investigation of Char Formation and Surface Recession of a Composite Ablation Material with a Silicone-resin Base written by Allen G. McLain and published by . This book was released on 1970 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: A composite ablation material containing a silicone- resin base, silica fibers, and phenolic and silica hollow microspheres has been subjected to a wide range of test conditions to study its charring behavior. The ablation tests were performed at stagnationpoint pressures ranging from 0.016 to 1.3 atm and heating rates ranging from 1.34 MW/m2 to 14.8 MW/m2 in air and nitrogen. The resulting char-layer surfaces fell into three categories - black char, glassy-coated char, and gray char - as heating rates (and char surface temperatures) were increased. The char layers formed contained large percentages by weight of silicon dioxide. Silicon carbide was found to be in chars formed at high heating rates. Empirical correlations of surface recession were determined. For the higher heating rates where steady-state ablation was approached, char-layer constituents and mass loss could be predicted adequately with chemical equilibrium in the reactions at the surface assumed.
Book Synopsis Monthly Catalog of United States Government Publications by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications, Cumulative Index by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications, Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1983 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flight- and Ground-test Evaluation of Pyrrone Foams by : Allen G. McLain
Download or read book Flight- and Ground-test Evaluation of Pyrrone Foams written by Allen G. McLain and published by . This book was released on 1972 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two Pyrrone materials, pure Pyrrone foam with a density of 481 kg/cu m and hollow glass microsphere-Pyrrone composite with a density of 962 kg/cu m, were tested in the Langley 20-inch hypersonic arc heated tunnel at pressure levels from 0.06 to 0.27 atm and heating rates from 1.14 to 11.4 MW/sq m. The 481-kg/cu m Pyrrone foam was also flight tested as an experiment aboard a Pacemaker test vehicle. The results of the ground tests indicated that the thermal effectiveness of the 481-kg/cu m Pyrrone foam was superior to the 962-kg/cu m glass sphere-Pyrrone composite. The 481-kg/cu m Pyrrone foam had approximately one-half the thermal effectiveness of low density phenolic nylon. The 481-kg/cu m Pyrrone foam experienced random mechanical char removal over the entire range of test conditions. Char thermal property inputs for an ablation computer program were developed from the ground test data of the 481-kg/cu m Pyrrone foam. The computer program using these developed char thermal properties, as well as the measured uncharred material properties, adequately predicted the in-depth temperature histories measured during the Pacemaker flight.
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Space Simulation by : Joseph C. Richmond
Download or read book Space Simulation written by Joseph C. Richmond and published by . This book was released on 1970 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1980 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1969 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
