نتایج جستجو برای: synthetic jet

تعداد نتایج: 177905  

Journal: :Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 2020

Journal: :مکانیک سیالات و آیرودینامیک 0
حسن ملکی قاسم حیدری نژاد فتح ا... امی

one of the most common methods for controlling and increasing maneuverability of projectiles, especially the ones which move at high altitude and in low density air, is using lateral or reaction jets. the resultant force of the reaction jet is related to the jet and flow parameters. for finding their relation experimental, numerical, and analytical methods have been used. in order to change the...

Journal: :پژوهش فیزیک ایران 0
فرشاد صحبت زاده f. sohbatzadeh اباصلت حسین زاده کلاگر a. hossienzadeh colagar سعید میرزانژاد s. mirzanejhad سمانه مطلبی s. motallebi معصومه فرهادی m. farhadi مولود باقری m bagheri حامد معماریانی

in this paper, construction of triplet atmospheric plasma jet using argon, air, oxygen and nitrogen gases is reported. bactericidal effect of the plasma jet is also investigated. to that end, longitudinal geometric configuration for the electrodes was chosen because it would increase the jet length. electrical characteristics, jet length dependencies on the applied voltage and gas flow rate wer...

2004
Karen R. Heavey

This paper describes a computational study undertaken to determine the aerodynamic effect of tiny unsteady synthetic jets as a means to provide the control authority needed to maneuver a spinning projectile at low subsonic speeds. Advanced Navier-Stokes computational techniques have been developed and used to obtain numerical solutions for the unsteady jet-interaction flow field at subsonic spe...

2016
J. Szente G. Toth M. Ward B. van der Holst E. Landi C. R. DeVore T. I. Gombosi

In this paper we carry out numerical modeling of coronal jets to understand their effects on the global corona and their contribution to the solar wind. We simulated jet models implemented within a well established three dimensional, two-temperature magneto-hydrodynamic (MHD) solar corona model that is built upon kinetic Alvén wave dissipation, producing realistic solar wind background. The jet...

2000
Philip E. Hardee Enrique A. Gomez

Three dimensional numerical simulations of the response of a Lorentz factor 2.5 relativistic jet to precession at three different frequencies have been performed. Low, moderate and high precession frequencies have been chosen relative to the maximally unstable frequency predicted by a Kelvin-Helmholtz stability analysis. Transverse motion and velocity decreases as the precession frequency incre...

2016
Evan Gardner Buchanan Timothy Zwier Scott A. McLuckey Dor Ben-Amotz Lyudmila Slipchenko

Buchanan, Evan Gardner. Ph.D., Purdue University, December 2014. Supersonic Jet Spectroscopy of Synthetic Foldamers, Multichromophores, and Their Water Containing Clusters. Major Professor: Timothy S. Zwier. A central theme specific to this dissertation concerns the conformation-specific spectroscopy of flexible molecules in an effort to bridge the complexity gap. Generally, molecules in the co...

2015
Ramakalavathi Marapareddy James Aanstoos Nicolas H. Younan

Fully polarimetric Synthetic Aperture Radar (polSAR) data analysis has wide applications for terrain and ground cover classification. SAR technology, due to its high spatial resolution and soil penetration capability, is a good choice to identify problematic areas on earthen levees. In this paper, using the entropy (H), alpha angle ( ), and eigenvalue parameters (λ), we implemented several unsu...

آزاده محمود آبادی, , محمد ابراهیم زمردیان, ,

 Analysis of electron – positron annihilation into hadrons in the range of energies above 60 GeV shows that apart from two jet events, there are evidence for three jet events that according to the QCD theory interpreted as a gluon radiation by a quark. However, the higher order diagrams lead to four jet events. In this paper, we study the fragmentation of quarks and gluons into hadronic jets . ...

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