Surface Catalysis and Characterization of Proposed Candidate Tps for Access-To-Space Vehicles PDF Download
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722792640
Category :
Languages : en
Pages : 62
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Book Description
Surface properties have been obtained on several classes of thermal protection systems (TPS) using data from both side-arm-reactor and arc-jet facilities. Thermochemical stability, optical properties, and coefficients for atom recombination were determined for candidate TPS proposed for single-stage-to-orbit vehicles. The systems included rigid fibrous insulations, blankets, reinforced carbon carbon, and metals. Test techniques, theories used to define arc-jet and side-arm-reactor flow, and material surface properties are described. Total hemispherical emittance and atom recombination coefficients for each candidate TPS are summarized in the form of polynomial and Arrhenius expressions. Stewart, David A. Ames Research Center...
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 66
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Book Description
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722792640
Category :
Languages : en
Pages : 62
Get Book Here
Book Description
Surface properties have been obtained on several classes of thermal protection systems (TPS) using data from both side-arm-reactor and arc-jet facilities. Thermochemical stability, optical properties, and coefficients for atom recombination were determined for candidate TPS proposed for single-stage-to-orbit vehicles. The systems included rigid fibrous insulations, blankets, reinforced carbon carbon, and metals. Test techniques, theories used to define arc-jet and side-arm-reactor flow, and material surface properties are described. Total hemispherical emittance and atom recombination coefficients for each candidate TPS are summarized in the form of polynomial and Arrhenius expressions. Stewart, David A. Ames Research Center...
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Category : Government publications
Languages : en
Pages :
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Author:
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Category : Fluid dynamics
Languages : en
Pages : 480
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Author: David A. Stewart
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Category :
Languages : en
Pages :
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ISBN:
Category : Thermodynamics
Languages : en
Pages : 624
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Author: American Institute of Aeronautics and Astronautics
Publisher:
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Category : Aeronautics
Languages : en
Pages : 990
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Author: Jochen Marschall
Publisher:
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Category :
Languages : en
Pages : 48
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This report summarizes the activities and results of experimental and modeling activities performed for the Air Force Office of Scientific Research (AFOSR) under Contract F49620-01-C-0026, "Oxidation and Catalytic Efficiency of ZrB2 and HfB2 Based Ultra-High-Temperature Ceramic (UHTC) Composites Exposed to Supersonic Air Plasma." The goals of this project were to (1) experimentally investigate UHTC oxidation in a supersonic oxidizing flow environment, (2) develop oxidation models that could be incorporated into aerothermal heating and trajectory codes, and (3) experimentally characterize the catalytic efficiency of UHTC samples for surface recombination of dissociated oxygen and nitrogen. Given the importance of impact damage to the leading edges of hypersonic vehicles, a task was added during the third year of the project to (4) begin preliminary high-velocity impact experiments on UHTC materials. Research efforts and accomplishments in each of these four areas are summarized below. The results of this research have led to eight presentations at various conferences and meetings, and have been written up in three technical publications 1-3. Manuscripts of these technical papers are included in this report as Appendixes I, II, and III.
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Category : Aeronautics
Languages : en
Pages : 318
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Author:
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ISBN:
Category : Fluid dynamics
Languages : en
Pages : 442
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