Results 21 to 30 of about 1,997,150 (223)
Experimental study on regaining the tangential velocity energy of axial flow pump
Energy Conversion and Management, 2003 Axial flow pumps are widely used in a wide range of applications. Although a different range of axial pump designs can be observed, axial flow pumps are usually designed for high flow rate and low pressure applications. In this study, two different axial flow pump impellers with and without guide vanes are experimentally investigated.
D. Kaya
openaire +3 more sources
The three-dimensional distributions of tangential velocity and total-temperature in vortex tubes
Journal of Fluid Mechanics, 1971 The axial and radial gradients of the tangential velocity distribution are calculated from prescribed secondary flow functions on the basis of a zero-order approximation to the momentum equations developed by Lewellen. It is shown that secondary flow functions may be devised which meet pertinent physical requirements and which at the same time lead to ...
C. U. Linderstrøm-Lang
openaire +2 more sources
Velocity distribution and hydrodynamic drag in turbulent flow [PDF]
E3S Web of Conferences, 2023 This work aims to study the vertical velocity distribution in the near-wall layer of a pipe, channel, and boundary layer of a flat plate because these issues are of great practical and theoretical importance.
Ignatenko Evgenii +2 more
doaj +1 more source
Energy Reports, 2023 Numerical simulations of axial hydraulic turbines away from the best efficiency point are challenging. Previous studies especially show difficulties predicting the tangential velocity at Part Load (PL) operating conditions, where the swirl is high, in ...
J. Kranenbarg +3 more
doaj +1 more source
Hydrodynamic flow between rotating stretchable disks in an orthotropic porous medium [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2020 A mathematical model of convective steady flow over rotating disks in an orthotropic porous medium has been developed and solved the non-dimentional governing equations for flow by the shooting method that uses fourth order Runge- Kutta integration ...
K. Gowthami +3 more
doaj +1 more source
Flow Field Simulation of Swirling Abrasive Jet Nozzle for Hard Rock Breaking
Geofluids, 2022 Radial jet drilling (RJD) technology has been proved to be an economical and efficient stimulation technology for oil and gas, geothermal, hydrate, etc. but conventional RJD technology adopts pure water jet to break rock and form laterals, which has low ...
Zhang Dongqing +4 more
doaj +1 more source
Nihon Kikai Gakkai ronbunshu, 2022 This paper describes the relationship between a tangential contact force and a slip ratio under various wet condition. In previous studies, the effect of difference in watering amount on the tangential contact force characteristics under wheel/rail ...
Daisuke YAMAMOTO
doaj +1 more source
Galaxy Models with Tangentially Anisotropic Velocity Distributions [PDF]
The Astronomical Journal, 2006 to appear in AJ, extended appendix, typo corrected from the 2nd version (completely rewritten from the 1st version, see also astro-ph/0508419 for some materials split from the 1st version)
an, J. H., Evans, N. W.
openaire +2 more sources
Demonstrating Tangential Velocity by a Self-Coded Robot
Journal of Student Research, 2021 Tangential velocity is a concept that is often taught as a part of rotation, and is the linear velocity an object has as it turns about a fixed axis. The main goal of this research project was to examine this concept and demonstrate it on a self-coded robot.
Pete Hwang, Danilo JR Tadeo
openaire +2 more sources