نتایج جستجو برای: jet pump

تعداد نتایج: 99772  

Journal: :Energies 2022

Jet fish pumps are efficient hydraulic machinery for transportation. Yet, the complex flow phenomenon in it is major potential risk damage to fish. The dangerous phenomena fish, such as radial pressure gradient and exposure strain rate, usually controlled by structural parameters of jet pumps. Therefore, injury rate can be theoretically decreased optimization design However, there a nonlinear r...

Introduction: Coronary artery bypass grafting is a surgical operation that bypasses atherosclerotic coronary vessels and restores blood flow to the ischemic zone of hearts. And two different conventional methods are ON-pump CABG, and Off-pump CABG.  Altogether, the efficacy and safety of these two types of surgical procedures are still under debate. In this study, we aim to com...

ژورنال: مجله طب نظامی 2020

Background and Aim: Autotoxic substances such as JP-4 jet fuel can have negative effects on the auditory system by the various means such as cochlear dysfunction. The purpose of this study was to investigate the combined effects of exposure to JP-4 jet fuel and noise on hearing loss in rats, to determine the possible interference effects of these two risk factors on rat auditory system. Methods...

Mohamad Hojaji Saeed Toolani,

Designing and manufacturing the multiple jets simulator and experimental investigation of the multiple jets in crossflow at low velocity ratios have been studied Together with design and build a low-speed wind tunnel. A specific rake is used to determine the flow field pressure and changes in static pressure measured by pressure taps in the near field of the jets. There are generally three regi...

A. R. Pishehvar and H. Ahmadi Kia,

In this study, the missile staging process by implementing a side-injected jet is simulated numerically. The problem is considered to be axisymmetric and the thin shear layer approximation of Navier-Stokes equations along with an algebraic turbulence model is used in a quasi-static form for the calculations. The free stream corresponds to a very high altitude flight condition with a Mach number...

Journal: :Transactions of the Japan Society of Mechanical Engineers 1964

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 2008

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