Results 111 to 120 of about 13,886 (219)

An overview of microflown technologies [PDF]

open access: yes, 2003
The Microflown is an acoustic sensor measuring particle velocity instead of sound pressure, which is usually measured by conventional microphones.
Bree, Hans-Elias de
core   +1 more source

Tethered Balloon-Borne Turbulence Measurements in Winter and Spring during the MOSAiC Expedition. [PDF]

open access: yesSci Data, 2023
Akansu EF   +5 more
europepmc   +1 more source

Performance and test section flow characteristics of the National Full-Scale Aerodynamics Complex 80- by 120-Foot Wind Tunnel [PDF]

open access: yes
Results from the performance and test section flow calibration of the 80- by 120-Foot Wind Tunnel are presented. Measurements indicating the 80- by 120-ft test section flow quality were obtained throughout the tunnel operational envelope and for ...
Zell, Peter T.
core   +1 more source

An experimental study of a self-confined flow with ring-vorticity distribution [PDF]

open access: yes
A new form of self-confined flow was investigated in which a recirculation zone forms away from any solid boundary. An inviscid flow analysis indicated that in a purely meridional axisymmetric flow a stationary, spherical, self-confined region should ...
Lin, K. M., Moore, F. K.
core   +1 more source

LES Simulation of Hot-wire Anemometers

open access: yes, 2017
Hot wire anemometers have been used in several wind velocity sensors deployed in Mars. They are based in keeping the temperature of a surface at a constant value, above the ambient. This is done by means of a heater controlled with an electronic system.
openaire   +1 more source

Transient hot-film sensor response in a shock tube [PDF]

open access: yes
Shock tube experiments were performed to determine the response of a hot-film sensor, mounted flush on the side wall of a shock tube, to unsteady flow behind a normal shock wave.
Gartenberg, E.   +2 more
core   +1 more source

A radionuclide counting technique for measuring wind velocity [PDF]

open access: yes
A technique for measuring wind velocities of meteorological interest is described. It is based on inverse-square-law variation of the counting rates as the radioactive source-to-counter distance is changed by wind drag on the source ball.
Khandelwal, G. S.   +2 more
core   +1 more source

Correcting for particle counting bias error in turbulent flow [PDF]

open access: yes
An ideal seeding device is proposed generating particles that exactly follow the flow out are still a major source of error, i.e., with a particle counting bias wherein the probability of measuring velocity is a function of velocity.
Baratuci, W., Edwards, R. V.
core   +1 more source

Further development of the dynamic gas temperature measurement system. Volume 1: Technical efforts [PDF]

open access: yes
A compensated dynamic gas temperature thermocouple measurement method was experimentally verified. Dynamic gas temperature signals from a flow passing through a chopped-wheel signal generator and an atmospheric pressure laboratory burner were measured by
Elmore, D. L.   +2 more
core   +1 more source

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