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Showing 1 to 10 of 10 for “"vortex tube"”.
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Aerodynamic Interactions in Vortex Tube Separator Arrays
… device for engine air-particle separation is the vortex tube separator (VTS), which uses centrifugal forces in a vortical flow to radially filter foreign particles from a duct with an annular exit. Dozens or hundreds of these devices are linked together on a shared manifold known as a VTS array. …
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Gas liquefaction using a Ranque-Hilsch vortex tube : design criteria and bibliography
Thesis (Chem.E)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1980.
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Cop and capacity improvement through work and heat recovery by using vortex tube
The vortex tube is an intriguing device that separates an incoming high-pressure fluid stream into two low-pressure streams. Work interaction during the expansion process causes a temperature decrease in one of the two exit streams, while the other one experiences a temperature increase. The …
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An Experimental Study on the Impact of Pressure Drop in the Ranque-Hilsch Vortex Tube
A vortex tube converts a single stream of compressed gas into two outlet streams; one heated, and the other cooled. This phenomenon, referred to as energy separation, is not fully understood, thereby requires further experimentation and analysis. CFD can provide insight, however, such simulations …
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Experimental investigation of vortex tube and vortex nozzle for applications in air-conditioning, refrigeration, and heat pump systems
The Ranque-Hilsch vortex tube can separate an incoming high pressure fluid stream into two low pressure fluid streams with different temperatures. In this project, the applicability of expansion work recovery through vortex tube in heating and cooling cycles has been examined. Vortex tube thermal …
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Large Eddy Simulation of Supersonic Twin-Jet Impingement Using a Fifth-Order WENO Scheme
… formed by the alternating merging of a primary vortex tube with a secondary vortex tube induced by the neighboring primary vortex tube. The nondimensional period of flapping is found to be 7𝐷*/𝑊ₒ*. High unsteadiness and strong interaction between the fountain and the jets are also observed. Due …
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The evolution of vortices in a turbulent boundary layer
… this investigation, the evolution of a perturbed vortex tube near a boundary is examined in order to gain insight into turbulent boundary layer phenomena. A Lagrangian vortex model is used to describe the vortex tube evolution, including the influence of shear. Based on numerical calculations, it …
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Mechanisms of turbulent flame propagation
… approach, laminar flame propagation across a vortex tube is employed, whilst in the second the concept of reaction time in the vortex tube is used. It is shown that the rate of burning in small eddies can be many times greater than that in large eddies. Theoretical values are obtained for the …
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Understanding Vortex Reconnection in Complex Fluid Flows
… the reconnection process for three initial vortex tube set-ups; anti-parallel, orthogonal and anti-parallel with axial flow. From these we are able to identify each of the different reconnection processes observed and discussed for the magnetic reconnection case but not necessarily the …
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Computational Assessment of Axial Compressor Flowfield Instability
… circumferentially propagating disturbances of a vortex tube nature with a circumferential spacing of between 1.16 to 1.65 blade pitches. This range in circumferential spacing of the Rotating Instabilities vortex tubes gives rise to the characteristic “hump” in the frequency spectra. These …