Chain-link-fence structures produced in a plane jet

Leaving on a plane jet

This is a continuation of our research on the Universal Planar Manipulator (UPM), a device capable of manipulating multiple generic objects (cans, chess pieces, poker chips, tools, etc.) with a single horizontally-vibrating, rigid plate (3 dofs). Objects are propelled by sliding frictional forces developed against the vibrating plate. A special plate vibration creates an average force field cal...

Downstream subsonic jet noise: link with vortical structures intruding into the jet core

A subsonic circular jet with a Mach number of 0.9 and a Reynolds number of 65 000 is computed by a compressible Large Eddy Simulation (LES) to determine both the flow field and the sound field in the same calculation. The noise radiated by the jet, provided by LES, is in good agreement with experimental data of the literature in terms of sound pressure spectra, levels and directivity, showing t...

Large eddy simulation of a plane jet

Modelling the Attached Plane Jet in a Room

OF DOCTORAL DISSERTATION HELSINKI UNIVERSITY OF TECHNOLOGY P.O. BOX 1000, FI-02015 TKK http://www.tkk.fi Author Guangyu Cao Name of the dissertation Modelling the attached plane jet in a room Manuscript submitted 25.02.2009 Manuscript revised 31.08.2009 Date of the defence 13.11.2009 Monograph Article dissertation (summary + original articles) Faculty Faculty of Engineering and Architecture Dep...

Plane Turbulent Jet Flow in a Favourable Pressure Gradient

SUMMARY An experimental study has been made of an incompressible turbulent plane jet exhausting downstream into an external flow having a favourable longitudinal pressure gradient approximating that of two-dimensional sink flow. Four flows were studied, for which the ratios of mainstream and jet velocities at the exit plane of the jet were in the range from 0.1 to 0.5. For each case velocity pr...