Generating Mechanism of Longitudinal Vortices Using Pulsed Vortex Generator Jets.

Improved Fiber Hydroentanglement Using Pulsed Elliptical Jets

Recent studies of impinging jet flows have shown that momentum and heat transfer can be significantly improved if the jet flow is pulsed (Zumbrunnen, 1996). Moreover, when the jet holes are elliptical, jet free surfaces are formed into a helical structure. These helical structures in a jet flow can be readily observed by squeezing a garden hose into an elliptic shape. Upon pulsating the jet flo...

Pulsed corona generation using a diode-based pulsed power generator

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Single and Two-Phase Heat Transfer Enhancement Using Longitudinal Vortex Generator in Narrow Rectangular Channel

Fundamental Studies of Vortices Induced by a Vortex-generator for Automotive Applications

For automotive applications, passive flow control devices can be used to reduce, delay or prevent flow separation. This study explores the nature of vortex generation and behaviour, numerically and experimentally, for a simple geometry at a Reynolds Number (Rex) of 5×10 5 and 1.945×10 6 . The setup comprised a triangular vane vortex-generator mounted on a shallow ramp referenced from literature...

Optical Vortices and Vortex Solitons

Optical vortices are phase singularities nested in electromagnetic waves that constitute a fascinating source of phenomena in the physics of light and display deep similarities to their close relatives, quantized vortices in superfluids and Bose-Einstein condensates. We present a brief overview of the major advances in the study of optical vortices in different types of nonlinear media, with em...