Results 81 to 90 of about 60,736 (209)

An experimental investigation of gas jets in confined swirling air flow [PDF]

The fluid dynamics of jets in confined swirling flows which is of importance to designers of turbine combustors and solid fuel ramjets used to power missiles fired from cannons were examined.
Ahmed, S. A., Mongia, H., Mongia, H. C.
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Rayleigh scattering temperature measurements in a swirl stabilized burner [PDF]

, 2013
Rayleigh scattering temperature measurements were obtained in a turbulent reactive swirling coaxial jet discharged from a swirl-stabilized burner along the jet-flame centerline.
Hardalupas, Y., Soulopoulos, N., Stetsyuk, V., Taylor, A. M. K. P.   +3 more
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Speed sensorless field oriented control of ac induction motor using model reference adaptive system [PDF]

, 2020
In order implement the vector control technique, the motor speed information is required. Incremental encoder, resolvers and tachogenerator, are used to reveal the speed.
Ismael, Ahmed Jameel
core  

Flow and Flame Mechanisms for Swirl-Stabilized Combustors

Aerospace
This article reviews the physical and chemical mechanisms associated with unsteady swirl-stabilized partially or fully lean premixed combustion.
Paul Palies
doaj   +1 more source

Aerothermal modeling program. Phase 2, element B: Flow interaction experiment [PDF]

NASA has instituted an extensive effort to improve the design process and data base for the hot section components of gas turbine engines. The purpose of element B is to establish a benchmark quality data set that consists of measurements of the ...
Mongia, H. C., Murthy, S. N. B., Nikjooy, M., Sullivan, J. P.   +3 more
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Numerical Simulation Study on the Descaling Mechanism of High-Pressure Swirling Jet

Shiyou jixie
To further explore the active mechanism of swirling jet， a numerical model of swirling jet descaling was built， and its effectiveness was verified by comparing with experimental results. Then， the difference in flow field characteristics between swirling
Zhong Yin, Chen Shu, Zhao Yuhong, Xue Yongzhi, Yao Lin   +4 more
doaj   +1 more source

Experimental study of precessing vortex core in two-phase flow

EPJ Web of Conferences, 2015
The work is devoted to the study of a precessing vortex core (PVC) in a swirling gas-liquid flow in an axisymmetric hydrodynamic chamber. The influence of the dispersed gas phase on the frequency of PVC precession and on the pressure in the hydrodynamic ...
Vinokurov Alexey, Shtork Sergey, Alekseenko Sergey   +2 more
doaj   +1 more source

Effect of initial tangential velocity distribution on the mean evolution of a swirling turbulent free jet [PDF]

An existing cold jet facility at NASA-Lewis was modified to produce swirling flows with controllable initial tangential velocity distribution. Distinctly different swirl velocity profiles were produced, and their effects on jet mixing characteristics ...
Farokhi, S., Rice, E. J., Taghavi, R.
core   +1 more source

Investigations on Hot Air Anti-Icing Characteristics with Internal Jet-Induced Swirling Flow

Aerospace
The tangential jet-induced swirling flow is a highly efficient technology for enhancing heat transfer. This paper explores the application of swirling flow of an airfoil/aero-engine in a hot air anti-icing chamber, aiming to improve the anti-icing ...
Yuyang Liu, Xian Yi
doaj   +1 more source

Effervescent Breakup and Combustion of Liquid Fuels: Experiment and Modelling [PDF]

, 2014
Tato práce se zaměřuje na oblast effervescentních sprejů a jejich aplikace na kapalné spalování s důrazem na průmyslové spalovací komory. Oba aspekty – modelování a experiment – jsou řešeny.
Broukal, Jakub
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