Results 21 to 30 of about 1,344,359 (262)

Secondary instability in boundary-layer flows [PDF]

open access: yesThe Physics of Fluids, 1979
The stability of a secondary Tollmien–Schlichting wave, whose wavenumber and frequency are nearly one half those of a fundamental Tollmien–Schlichting instability wave, is analyzed using the method of multiple scales. Under these conditions, the fundamental wave acts as a parametric exciter for the secondary wave. The results show that the amplitude of
Nayfeh, Ali H., Bozatli, A. N.
openaire   +3 more sources

Stability of an Axisymmetric Liquid Metal Flow Driven by a Multi-Pole Rotating Magnetic Field

open access: yesFluids, 2019
The stability of an electrically conducting fluid flow in a cylinder driven by a multi-pole rotating magnetic field is numerically studied. A time-averaged Lorentz force term including the electric potential is derived on the condition that the skin ...
Toshio Tagawa, Kewei Song
doaj   +1 more source

Flow structure of the confluence between an open channel and a pipe

open access: yesWater Science and Technology, 2023
It is common that the sewage is discharged into rivers through a municipal drainage network. The hydraulic properties of the confluence between a lateral drainage pipe and a rectangular open channel are investigated using numerical simulation.
Zhiwei Li   +4 more
doaj   +1 more source

Numerical Study on Flow and Heat Transfer of Supercritical Hydrocarbon Fuel in Curved Cooling Channel

open access: yesApplied Sciences, 2022
The fluid flow and heat transfer of hydrocarbon fuel play a significant role in developing regenerative cooling technology for advanced aeroengines. Numerical simulations have been conducted to investigate the flow and heat transfer characteristics of ...
Ying Zhang   +5 more
doaj   +1 more source

Fluid Flow in Helically Coiled Pipes

open access: yesFluids, 2023
Helically coiled pipes are widely used in many industrial and engineering applications because of their compactness, larger heat transfer area per unit volume and higher efficiency in heat and mass transfer compared to other pipe geometries.
Leonardo Di G. Sigalotti   +2 more
doaj   +1 more source

E‌X‌P‌E‌R‌I‌M‌E‌N‌T‌A‌L A‌N‌D N‌U‌M‌E‌R‌I‌C‌A‌L M‌O‌D‌E‌L‌I‌N‌G O‌F F‌L‌O‌W F‌I‌E‌L‌D W‌I‌T‌H‌I‌N A V‌O‌R‌T‌E‌X S‌E‌T‌T‌L‌I‌N‌G B‌A‌S‌I‌N [PDF]

open access: yesمهندسی عمران شریف, 2020
A v‌o‌r‌t‌e‌x s‌e‌t‌t‌l‌i‌n‌g b‌a‌s‌i‌n (V‌S‌B) i‌s a‌n e‌f‌f‌i‌c‌i‌e‌n‌t c‌o‌n‌t‌i‌n‌u‌o‌u‌s f‌l‌u‌s‌h‌i‌n‌g s‌y‌s‌t‌e‌m t‌o r‌e‌m‌o‌v‌e s‌e‌d‌i‌m‌e‌n‌t i‌n w‌a‌t‌e‌r a‌n‌d w‌a‌s‌t‌e‌w‌a‌t‌e‌r t‌r‌e‌a‌t‌m‌e‌n‌t p‌l‌a‌n‌t‌s. A‌l‌t‌h‌o‌u‌g‌h m‌a‌n‌y r‌e‌
N. sheikh rezazadeh nikou, A.N Ziaei
doaj   +1 more source

Viscoelastic Effects in Multilayer Polymer Extrusion

open access: yesApplied Rheology, 2006
The effect of viscoelasticity on multilayer polymer extrusion is discussed. In these coextrusion processes predetermined patterns are created with a remarkable breadth of complexity even in geometrically simple dies via elastic rearrangements caused by ...
Anderson Patrick D.   +2 more
doaj   +1 more source

Velocity distribution of nonuniform flow on the stoss side over dunes

open access: yesShui kexue jinzhan, 2015
In order to further reveal the flow characteristics over dunes and thus improve the calculation accuracy of velocity,the time-mean velocity profile was analyzed both experimentally and theoretically,and the instantaneous velocities were measured over two
MA Dianguang, DONG Weiliang, XU Junfeng
doaj   +1 more source

Analytical Model of Hydraulic Geometry Functions in Meander River [PDF]

open access: yesعلوم و مهندسی آبیاری, 2018
Regime and hydraulic geometry are two of the most important proposed models  over the past century in the related disciplines of river engineering and fluvial geomorphology.
Mojgan Shahosainy   +2 more
doaj   +1 more source

Numerical simulation of effect of outer bank slope types on the hydraulic characteristics in sharp bends

open access: yesShui kexue jinzhan, 2023
To study the effect of the outer bank slope types on the hydraulic characteristics in sharp bends, a three-dimensional hydrodynamic mathematical models was developed to simulate the flow structures under different slope types of the outer bank in the ...
Qian LI   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy