Flow control with noncircular jets
EJ Gutmark, FF Grinstein - Annual review of fluid mechanics, 1999 - annualreviews.org
▪ Abstract Noncircular jets have been the topic of extensive research in the last fifteen years.
These jets were identified as an efficient technique of passive flow control that allows …
These jets were identified as an efficient technique of passive flow control that allows …
Evolution from 'tabs' to 'chevron technology'-a review
K Zaman, JE Bridges, DL Huff - International Journal of …, 2011 - journals.sagepub.com
'Chevrons', a sawtooth pattern on the trailing edge of exhaust nozzles, are being
implemented on modern jet engines. The technology reduces jet noise for 'separate …
implemented on modern jet engines. The technology reduces jet noise for 'separate …
Heat transfer and acoustic study of impinging synthetic jet using diamond and oval shape orifice
LD Mangate, MB Chaudhari - International Journal of Thermal Sciences, 2015 - Elsevier
Synthetic jet is a novel flow phenomenon potentially useful for cooling of electronic devices.
The heat transfer and acoustic characteristics of impinging synthetic jet are investigated …
The heat transfer and acoustic characteristics of impinging synthetic jet are investigated …
Near-field investigation of chevron nozzle mechanisms
B Callender, E Gutmark, S Martens - AIAA journal, 2008 - arc.aiaa.org
CHEVRON nozzles represent the current state of the art in jet noise reduction technology for
application in medium to high bypass ratio turbofan engines. These nozzles feature …
application in medium to high bypass ratio turbofan engines. These nozzles feature …
Survey on vortex shedding tabs as supersonic jet control
This study provides an overview of the tab-controlled jets to understand and predict the
influence of mixing promoting vortices at speeds ranging from subsonic to supersonic. A …
influence of mixing promoting vortices at speeds ranging from subsonic to supersonic. A …
Experimental studies on the limiting tab
E Rathakrishnan - AIAA Journal, 2009 - arc.aiaa.org
DESIGN of large and fast jet-propelled aircraft and large booster rocket engines have
focused on noise problems. Difficulties in devising satisfactory solutions stem from the …
focused on noise problems. Difficulties in devising satisfactory solutions stem from the …
Pinch-off of non-axisymmetric vortex rings
C O'Farrell, JO Dabiri - Journal of fluid mechanics, 2014 - cambridge.org
The formation and pinch-off of non-axisymmetric vortex rings is considered experimentally.
Vortex rings are generated using a non-circular piston–cylinder arrangement, and the …
Vortex rings are generated using a non-circular piston–cylinder arrangement, and the …
Instability of rectangular jets
CKW Tam, AT Thies - Journal of Fluid Mechanics, 1993 - cambridge.org
The instability of rectangular jets is investigated using a vortex-sheet model. It is shown that
such jets support four linearly independent families of instability waves. Within each family …
such jets support four linearly independent families of instability waves. Within each family …
Investigation of the noise from a rectangular supersonic jet
NS Heeb, P Mora Sanchez, EJ Gutmark… - 19th AIAA/CEAS …, 2013 - arc.aiaa.org
An experimental investigation of a low aspect ratio rectangular nozzle's flow field was
completed. Over, ideally, and under expanded operating conditions were presented for …
completed. Over, ideally, and under expanded operating conditions were presented for …
Supersonic jet mixing enhancement by'delta-tabs'
The results of a continuing investigation on the effect of vortex generators, in the form of
small tabs at the nozzle exit, on the evolution of a jet are reported in this paper. Primarily …
small tabs at the nozzle exit, on the evolution of a jet are reported in this paper. Primarily …