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  • AERODYNAMICS  (3,271)
  • BIOTECHNOLOGY
  • NAVIGATION
  • SPACE SCIENCES
  • 1985-1989  (2,967)
  • 1960-1964  (1,650)
  • 1940-1944  (8)
  • 1935-1939  (2)
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Keywords
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Year
  • 11
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    Aeronautical engineering: A cumulative index to a continuing bibliography (1988)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: This bibliography is a cumulative index to the abstracts contained in NASA SP-7037(210) through NASA SP-7037(221) of Aeronautical Engineering: A Continuing Bibliography. NASA SP-7037 and its supplements have been compiled through the cooperative efforts of the American Institute of Aeronautics and Astronautics (AIAA) and the National Aeronautics and Space Administration (NASA). This cumulative index includes subject, personal author, corporate source, foreign technology, contract number, report number, and accession number indexes.
    Keywords: AERODYNAMICS
    Type: NASA-SP-7037(222) , NAS 1.21:7037(222)
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 12
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    The interference of the model support mast with measurements of the longitudinal and lateral aerodynamic coefficients (1987)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The effects the single-bottom support masts used in the ONERA S1 and S4 wind tunnels have on aerodynamic data collected with scale model aircraft were examined experimentally and analytically. Systematic studies were performed on the flow characteristics around different diameters for the mounts. Scaling methods used to make data from one wind tunnel correspond to data from the other are described. Airbus 320 models were introduced into the tests and mast-body flow interactions were observed. A summary is presented of restrictions on the mast diameters, relative to cylindrical model diameters, which will minimize the effects the masts have on longitudinal and lateral aerodynamic stability data.
    Keywords: AERODYNAMICS
    Type: NASA-TT-20079 , NAS 1.77:20079 , ONERA-TP-1986-181
    Format: text
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    NASA TECHNICAL REPORTS
  • 13
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    Hypersonic aerodynamic coefficients and convection flow estimation in a HERMES type project (1987)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: An analysis of all the experimental and computation requirements of the HERMES project is presented. The discussion includes the influence of the upper atmosphere composition and possible chemical reactions, the information collected in Orbiter experiments, the possibility of utilizing plasma generators and CF4 in wind tunnel tests, the development of parabolized Navier-Stokes models and solutions, and the computing capacity requirements.
    Keywords: AERODYNAMICS
    Type: NASA-TT-20019 , NAS 1.77:20019
    Format: text
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    NASA TECHNICAL REPORTS
  • 14
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    Aerodynamics of the Viggen 37 aircraft. Part 1: General characteristics at low speed (1986)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A description of the aerodynamics of the Viggen 37 and its performances, especially at low speeds is presented. The aerodynamic requirements for the design of the Viggen 37 aircraft are given, including the basic design, performance requirement, and aerodynamic characteristics, static and dynamic load test results and flight test results. The Viggen 37 aircraft is designed to be used for air attack, surveillance, pursuit, and training applications. It is shown that this aircraft is suitable for short runways, and has good maneuvering, acceleration, and climbing characteristics. The design objectives for this aircraft were met by utilizing the effect produced by the interference between two triangular wings, positioned in tandem.
    Keywords: AERODYNAMICS
    Type: NASA-TM-88403 , NAS 1.15:88403
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 15
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    Formation of asymmetric separated flow past slender bodies of revolution at large angles of attack (1986)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The paper examines the problem of determining stationary positions of pairs of vortices of unequal intensity in the flow behind a cylinder modeling the axisymmetric separated flow past a slender body at large angles of attack. The possible asymmetric stationary positions of two vortices are calculated, and their stability with respect to small perturbations is determined. Bifurcations of the flow field with changes in vortex intensity are analyzed.
    Keywords: AERODYNAMICS
    Type: NASA-TM-88441 , NAS 1.15:88441 , (ISSN 0321-3249)
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    NASA TECHNICAL REPORTS
  • 16
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    Mutual effect of thermochemical surface decomposition and viscous interaction during hypersonic flow past a sharp cone (1986)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Numerical results on the hypersonic gas flow in viscous interaction regime past sharp circular cones with thermally destructible Teflon surface are presented. Characteristics of the mutual influence between the thermochemical decomposition of the surface and the viscous interaction are revealed.
    Keywords: AERODYNAMICS
    Type: NASA-TM-78015 , NAS 1.15:78015
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 17
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    Three-dimensional boundary layer analysis program Blay and its application (1986)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The boundary layer calculation program (BLAY) is a program code which accurately analyzes the three-dimensional boundary layer of a wing with an undefined plane. In comparison with other preexisting programs, the BLAY is characterized by the following: (1) the time required for computation is shorter than any other; (2) the program is adaptable to a parallel processing computer; and (3) the program is associated with a secondary accuracy in the z-direction. As a boundary layer modification to transonic nonviscous flow analysis programs, it is used to adjust viscous and nonviscous interference problems repeatedly. Its efficiency is an important factor in cost reduction in aircraft designing.
    Keywords: AERODYNAMICS
    Type: NASA-TM-77962 , NAS 1.15:77962 , Jun 30, 1983 - Jul 01, 1983; Tokyo; Japan
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    NASA TECHNICAL REPORTS
  • 18
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    Comparison of computational results of a few representative three-dimensional transonic potential flow analysis programs (1986)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The development of transonic aerodynamic computation methods and specific examples, as well as examples of three-dimensional transonic computation in design, are discussed. The case of the transonic transport and the case of the small transport are analyzed. Requirements for programs of the future are itemized.
    Keywords: AERODYNAMICS
    Type: NASA-TM-77963 , NAS 1.15:77963 , Jun 30, 1983 - Jul 01, 1983; Tokyo; Japan
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 19
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    NASA's hypersonic fluid and thermal physics program (Aerothermodynamics) (1985)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: This survey paper gives an overview of NASA's hypersonic fluid and thermal physics program (recently renamed aerothermodynamics). The purpose is to present the elements of, example results from, and rationale and projection for this program. The program is based on improving the fundamental understanding of aerodynamic and aerothermodynamic flow phenomena over hypersonic vehicles in the continuum, transitional, and rarefied flow regimes. Vehicle design capabilities, computational fluid dynamics, computational chemistry, turbulence modeling, aerothermal loads, orbiter flight data analysis, orbiter experiments, laser photodiagnostics, and facilities are discussed.
    Keywords: AERODYNAMICS
    Type: AIAA PAPER 85-0922
    Format: text
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    NASA TECHNICAL REPORTS
  • 20
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    Deceleration of a supersonic flow behind a curved shock wave with isentropic precompression (1985)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Three-dimensional supersonic flows of an ideal fluid in the neighborhood of bodies formed by being cut out along the streamlines of an axisymmetric flow are investigated. The flow consists of a region of isoentropic compression and a region of vortex flow. An exact solution with variable entropy is used to describe the flow in the vortex region. In the continuous flow region an approximate solution is constructed by expanding the solution in a series in a small parameter. The effect of the shape of the excision and the vorticity of the flow on compression of the jet and and the total pressure loss coefficient is studied.
    Keywords: AERODYNAMICS
    Type: NASA-TM-77920 , NAS 1.15:77920
    Format: application/pdf
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