Results 71 to 80 of about 116 (92)

Modification of a Transonic Blowdown Wind Tunnel to Produce Oscillating Freestream Mach Number

48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, 2010
This paper details the design, construction, and evaluation of a modification to Ohio State’s 6” × 22” Transonic Wind Tunnel to enable modulation of the freestream Mach number. The test section Mach number in this blowdown facility is dynamically set by varying the choke area in a harmonic fashion.
Kyle Gompertz, Christopher Jensen, Pradeep Kumar, Di Peng, James W. Gregory, Jeffrey P. Bons   +5 more
openaire   +1 more source

The Impact of Pressure Regulators on the Runtime and Energy Savings of Supersonic Blowdown Wind Tunnels

Applied Mechanics and Materials, 2016
Pressure regulators have a great impact on the runtime and energy savings of supersonic wind tunnels. In order to investigate this impact quantitatively the theoretical isentropic (ideal) equations for the supersonic wind tunnel flow were compared with viscous CFD computations.
Philipp Epple, Michael Steppert, Michael Steber   +2 more
openaire   +1 more source

A study of pressure control for a blowdown wind tunnel

2012
http://archive.org/details ...
Kanaga, F. N., Rice, D. B.
openaire   +1 more source

Visualization of sidewall vortices in rectangular nozzle supersonic blowdown wind tunnel

Physics of Fluids
This study focuses on the details of the geometry and dynamics of sidewall vortices observed in supersonic wind tunnels with a rectangular cross section of the nozzle and the test section. The formation of sidewall vortices limits the accuracy of the data measured during wind tunnels' testing due to a reduced area of uniform core flow results.
Philip S. Andrews, Philip A. Lax, Flint O Thomas, Sergey B. Leonov   +3 more
openaire   +1 more source

System design and Flow simulation of a Blowdown Sliding-block Supersonic Wind tunnel

Journal of Science and Transport Technology
This study presents the design, simulation and performance evaluation of a blowdown sliding-block supersonic wind tunnel having a test section sized 20 × 20 cm, capable of operating in the range of Mach number from 2 to 4. This sliding-block mechanism allows precise control of Mach number by adjusting the nozzle throat area.
null Vu-Hoang-Long Nguyen, null Thi-Kim-Dung Hoang   +1 more
openaire   +1 more source

Stagnation Temperature Control in Blowdown Wind Tunnels

Journal of the Aerospace Sciences, 1958
J. S. MURPHY, DUNCAN RANNIE, G. W. TIMSON   +2 more
openaire   +1 more source

Numerical and Experimental Investigation of the Flowfield in a Blowdown Wind Tunnel Contraction and Nozzle

2009
CFD 2002 from 06/09/2002 to 06/11 ...
Rebaine, A., Khalid, M., Broughton, C., Ellis, F.   +3 more
openaire   +1 more source

Flow quality improvement in a high speed blowdown wind tunnel

31st Aerospace Sciences Meeting, 1993
PAUL HERRING, JOE SMITH
openaire   +1 more source

Dynamic stability testing in a mach-14 blowdown wind tunnel

Journal of Spacecraft and Rockets, 1964
OTTO WALCHNER, FRANK M. SAWYER, STEPHEN J. KOOB   +2 more
openaire   +1 more source

Combination of Pressure Sensitive Paint and Schlieren Techniques in the 1.5m Trisonic Blowdown Wind Tunnel

2009
101st Meeting of the Supersonic Tunnel Association (from 5/2/2004 to 5/4/2004)
Mebarki, Y., Grenier, M., Ellis, F., Bureau, J., Orchard, D., Tang, F. C., Thain, J.   +6 more
openaire   +1 more source