Results 21 to 30 of about 3,130,306 (355)
Secondary Injection of Gases into a Supersonic Flow [PDF]
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.
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Secondary instability in boundary-layer flows [PDF]
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.
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Travelling-waves consistent with turbulence-driven secondary flow in a square duct [PDF]
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
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Numerical simulation of a supersonic ejector for vacuum generation with explicit and implicit solver in openfoam [PDF]
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
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Flow structure of the confluence between an open channel and a pipe
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]
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
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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
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Fluid Flow in Helically Coiled Pipes
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
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Stability of an Axisymmetric Liquid Metal Flow Driven by a Multi-Pole Rotating Magnetic Field
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
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Compressibility Effects on Secondary Flows [PDF]
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 ...
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