Results 81 to 90 of about 17,927 (212)

Investigation of Vortex Clouds and Droplet Sizes in Heated Water Spray Patterns Generated by Axisymmetric Full Cone Nozzles

The Scientific World Journal, 2013
The hot water sprays are an important part of many industrial processes, where the detailed knowledge of physical phenomena involved in jet transportation, interaction, secondary breakup, evaporation, and coalescence of droplets is important to reach ...
M. Y. Naz, S. A. Sulaiman, B. Ariwahjoedi, Ku Zilati Ku Shaari   +3 more
doaj   +1 more source

Convergent-divergent nozzle flows [PDF]

Uniform two-zone perfect gas expansions in convergent-divergent ...
Kliegel, J. R., Quan, V.
core   +1 more source

Modern developments in shear flow control with swirl [PDF]

Passive and active control of swirling turbulent jets is experimentally investigated. Initial swirl distribution is shown to dominate the free jet evolution in the passive mode.
Farokhi, Saeed, Taghavi, R.
core   +1 more source

3D analysis of gas flow behavior and particle acceleration characteristics in cold spray additive manufacturing based on non-axisymmetric numerical models

Journal of Materials Research and Technology
Cold spraying has been recognized as a promising additive manufacturing technology due to its inherent characteristics of solid-state and high deposition rate.
Wenpeng Wan, Wenya Li, Dong Wu, Zhengmao Zhang, Bo Ning   +4 more
doaj   +1 more source

Reduction of acoustic disturbances in the test section of supersonic wind tunnels by laminarizing their nozzle and test section wall boundary layers by means of suction [PDF]

The feasibility of quiet, suction laminarized, high Reynolds number (Re) supersonic wind tunnel nozzles was studied. According to nozzle wall boundary layer development and stability studies, relatively weak area suction can prevent amplified nozzle wall
Pfenninger, W., Syberg, J.
core   +1 more source

A review of instability and noise propagation in supersonic flows [PDF]

Originally analytical and numerical models were to be developed for noise production in supersonic jets, wakes and free shear layers. While the effort was concentrated initially on these aspects, other topics were also pursued, most were of interest to ...
Daudpota, Q. Isa, Lakin, William D.
core   +1 more source

Naturally occurring and forced azimuthal modes in a turbulent jet [PDF]

Naturally occurring instability modes in an axisymmetric jet were studied using the modal frequency technique. The evolution of the modal spectrum was obtained for a jet with a Reynolds number based on a diameter of 400,000 for both laminar and turbulent
Raman, Ganesh, Reshotko, Eli, Rice, Edward J.   +2 more
core   +1 more source

Research of a Novel Non-Axisymmetric Side-Compressed Variable Polarity Plasma Arc and Its Pressure Distribution Characteristics

Metals
In the keyhole variable polarity plasma arc weldng (VPPAW) process at horizontal position, the metal driven by gravity gathered on one side of the molten pool, and the weld formation is difficult, especially for thick workpiece welding.
Hongxing Zhao, Chunli Yang, Chenglei Fan
doaj   +1 more source

An improved analytical model of the separation region on boattail nozzles at subsonic speeds [PDF]

A practical engineering calculation was developed to model the viscous effects of a separated, reverse flow region on afterbody pressures and drag.
Buteau, J. D., King, R. W., Presz, W. M., Jr.   +2 more
core   +1 more source

Static internal performance of an axisymmetric nozzle with multiaxis thrust-vectoring capability [PDF]

An investigation was conducted in the static test facility of the Langley 16 Foot Transonic Tunnel in order to determine the internal performance characteristics of a multiaxis thrust vectoring axisymmetric nozzle.
Capone, Francis J., Carson, George T., Jr.   +1 more
core   +1 more source