Results 51 to 60 of about 2,285 (153)

A quiet flow Ludwieg tube for study of transition in compressible boundary layers: Design and feasibility [PDF]

open access: yes
Laminar-turbulent transition in high speed boundary layers is a complicated problem which is still poorly understood, partly because of experimental ambiguities caused by operating in noisy wind tunnels.
Schneider, Steven P.
core   +4 more sources

Cryogenic wind-tunnel technology [PDF]

open access: yes
The cryogenic concept and the advantages it offers with respect to achieving full scale Reynolds number in a moderate size tunnel at reasonable levels of dynamic pressure are described.
Kilgore, R. A.
core   +1 more source

The cryogenic wind tunnel concept for high Reynolds number testing [PDF]

open access: yes
Theoretical considerations indicate that cooling the wind-tunnel test gas to cryogenic temperatures will provide a large increase in Reynolds number with no increase in dynamic pressure while reducing the tunnel drive-power requirements.
Adcock, J. B.   +3 more
core   +1 more source

Wind tunnel requirements for computational fluid dynamics code verification [PDF]

open access: yes
The role of experiment in the development of Computational Fluid Dynamics (CFD) for aerodynamic flow field prediction is discussed. Requirements for code verification from two sources that pace the development of CFD are described for: (1) development of
Marvin, Joseph G.
core   +1 more source

The future of wind tunnel technology in Germany [PDF]

open access: yes
The practical value of a wind tunnel which is not dependent solely on size or achievable Reynolds number was examined.
Ewald, B.
core   +1 more source

Comparison of NAE porous wall and NASA adaptive wall test results using the NAE CAST-10 airfoil model [PDF]

open access: yes
Wind tunnels can now simulate flows over airfoils at high Reynolds numbers and high subsonic speeds. Methods to correct for (or reduce) test section wall interference at these test conditions must be validated. The National Aeronautics Establishment (NAE)
Mineck, Raymond E.
core   +1 more source

Supersonic wind tunnel nozzles: A selected, annotated bibliography to aid in the development of quiet wind tunnel technology [PDF]

open access: yes
This bibliography, with abstracts, consists of 298 citations arranged in chronological order. The citations were selected to be helpful to persons engaged in the design and development of quiet (low disturbance) nozzles for modern supersonic wind tunnels.
Wolf, Stephen W. D.
core   +1 more source

Solar pumped laser [PDF]

open access: yes, 1984
A solar pumped laser is described in which the lasant is a gas that will photodissociate and lase when subjected to sunrays. Sunrays are collected and directed onto the gas lasant to cause it to lase.
Hohl, F., Lee, J. H., Weaver, W. R.
core   +1 more source

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