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Secondary Injection of Gases into a Supersonic Flow [PDF]

open access: yes, 1964
The flow field around the injection port for secondary injection of a gas normal to a supersonic stream has been studied in a series of wind-tunnel experiments. The experiments were conducted at freestream Mach numbers of 1.38 to 4.54.
Spaid, Frank W., Zukoski, Edward E.
core   +1 more source

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

Travelling-waves consistent with turbulence-driven secondary flow in a square duct [PDF]

open access: yes, 2010
We present numerically determined travelling-wave solutions for pressure-driven flow through a straight duct with a square cross-section. This family of solutions represents typical coherent structures (a staggered array of counter-rotating streamwise ...
Alfredo Pinelli   +6 more
core   +3 more sources

Numerical simulation of a supersonic ejector for vacuum generation with explicit and implicit solver in openfoam [PDF]

open access: yes, 2019
Supersonic ejectors are used extensively in all kind of applications: compression of refrigerants in cooling systems, pumping of volatile fluids or in vacuum generation. In vacuum generation, also known as zero-secondary flow, the ejector has a transient
Camacho, Sergi   +4 more
core   +2 more sources

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

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

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

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

Compressibility Effects on Secondary Flows [PDF]

open access: yesJournal of the Aeronautical Sciences, 1956
The method of W. R. Hawthorne for the calculation of the secondary vorticity is generalized for compressible flow. It is shown that in the linearized theory (small vorticity) the influence of compressibility upon the secondary vorticity is due to (1) the entropy gradient in the approaching flow and (2) the compression of the fluid during the ...
openaire   +2 more sources

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