نتایج جستجو برای: cross flow

تعداد نتایج: 955708  

Journal: :Experiments in Fluids 2021

Abstract State-of-the-art technologies for wind and tidal energy exploitation focus mostly on axial turbines. However, cross-flow hydrokinetic turbines possess interesting features, such as higher area-based power density in array installations shallow water, well a generally simpler design. Up to now, the highly unsteady flow conditions cyclic blade stall have hindered deployment at large scal...

Journal: :Transactions of the Japan Society of Mechanical Engineers 1975

2014
Caroline W Kanyiri Mathew Kinyanjui Kang’ethe Giterere

In this research study, fluid flow through a cylindrical collapsible tube has been investigated. Of particular interest is the effect of flow parameters on the cross sectional area of a collapsible tube, flow velocity and internal pressure of the fluid. The flow parameters considered are longitudinal tension and volumetric flow rate. The tube is considered collapsible in the transverse directio...

2017
Matt Stickland William Dempster Lee Lothian Andrew Oldroyd

An understanding of bubble flows is important in the design of process equipment, particularly in the chemical and power industries. In vapour-liquid processes the mass and heat transfer between the phases is dominated by the liquid-vapour interface and is determined by the number, size and shape of the bubbles. For bubble flows these characteristics are often controlled by the generation mecha...

ژورنال: :مکانیک سازه ها و شاره ها 2012
محمد کلته عباس عباسی مجید بهرامی

in this paper, a novel approximate solution to determine the nusselt number for thermally developed, slug (low-prandtl), laminar, single phase flow in channels of arbitrary cross section is presented. using the saint-venant principle in torsion of beams, it is shown that the thermally developed nusselt number for low-prandtl flow is only a function of the geometrical parameters of the channel c...

Journal: :مکانیک سیالات و آیرودینامیک 0
محمد حججی محمدرضا سلطانی محمد طیبی رهنی

an experimental study has been performed to investigate the flow physics of an under-expanded axisymmetric supersonic jet exhausting transversely from a flat plate into a subsonic compressible cross flow. the goal was to study the effects of boundary layer thickness ratio (δ/d) and the jet to free stream dynamic pressure ratio (j) on surface pressure. the resulting measurements distinctly show ...

Journal: :Micromachines 2013
Klaus Mathwig Serge G. Lemay

This paper presents improvements in flow detection by electrical cross-correlation spectroscopy. This new technique detects molecular number fluctuations of electrochemically active analyte molecules as they are transported by liquid flow through a nanochannel. The fluctuations are used as a marker of liquid flow as their time of flight in between two consecutive transducers is determined, ther...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2004
Amalendu Sau Tony W H Sheu Robert R Hwang W C Yang

Direct numerical simulations are performed to predict the three-dimensional unsteady flow interactions in the near-field of a square jet issuing normal to a cross-flow. The simulated flow features reveal the formation of an upstream horseshoe vortex system, which is the result of an interaction between the oncoming channel floor shear layer and the transverse jet; the growth of a sequence of Ke...

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