ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN 印刷: 2152-5102
ISSN オンライン: 2152-5110

巻:
巻 46, 2019 巻 45, 2018 巻 44, 2017 巻 43, 2016 巻 42, 2015 巻 41, 2014 巻 40, 2013 巻 39, 2012 巻 38, 2011 巻 37, 2010 巻 36, 2009 巻 35, 2008 巻 34, 2007 巻 33, 2006 巻 32, 2005 巻 31, 2004 巻 30, 2003 巻 29, 2002 巻 28, 2001 巻 27, 2000 巻 26, 1999 巻 25, 1998 巻 24, 1997 巻 23, 1996 巻 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.2017018329
pages 387-408

EFFECT OF SYNTHETIC JET PARAMETERS ON CONTROLLED FLOW OVER AN AIRFOIL

T. Parthasarathy
University of Illinois at Urbana-Champaign, Urbana, Illinois 61820, USA
Shyama Prasad Das
Department of Mechanical Engineering, Indian Institute of Technology Madras Chennai—600036, India

要約

Flow control for performance enhancement over airfoils (both stall and load enhancement) has become an increasingly important topic. This numerical work describes the characteristics of flow control using synthetic jets over a NACA 0015 airfoil at a Reynolds number of 8.96 × 105 (based on the chord length and free-stream velocity) and at 20° angle of attack (wherein the flow is separated). A range of synthetic jet parameters were chosen to visualize their effects on the controlled flow. Analysis of key flow parameters indicate that the synthetic jet is efficient in increasing the lift coefficient while simultaneously reducing the drag coefficient, more so for larger jet amplitudes and at smaller angles of jet injection. A regression model for predicting the flow parameters is also specified. Toward the end of the study, a new parameter−the differential time of suction and blowing−was identified and its effect on the flow dynamics was observed. While the time modulation offers some benefits, it is the opinion of the authors that the benefits are too marginal to justify the implementation of such a system. This work serves as a platform to qualitatively and quantitatively understand the effects of the jet parameters on the separated flow over the airfoil, by understanding the flow parameters and structures.


Articles with similar content:

EXPERIMENTAL STUDY OF INFLUENCE OF ACTIVE METHODS OF FLOW CONTROL ON THE FLOW FIELD PAST A CYLINDER
Journal of Flow Visualization and Image Processing, Vol.16, 2009, issue 4
Petr Pick, Jiri Nozicka, Pavel Prochazka, Milan Matejka
NUMERICAL SIMULATION OF TRANSONIC BUFFET OVER AN AIRFOIL
TSFP DIGITAL LIBRARY ONLINE, Vol.3, 2003, issue
Jean-Christophe Robinet , Robert Houdeville, Eric Goncalves
EXPERIMENTAL INVESTIGATION OF THE SUPERSONIC BOUNDARY LAYER STABILITY ON A SWEPT WING AT MACH NUMBER M = 2
TsAGI Science Journal, Vol.42, 2011, issue 1
N. V. Semionov, A. D. Kosinov, Yu. G. Ermolaev
ANALYSIS OF SUBSONIC VORTEX FLOW OVER THE MODEL OF MANEUVERABLE AIRCRAFT USING COMPUTATIONAL FLUID DYNAMICS METHODS
TsAGI Science Journal, Vol.47, 2016, issue 7
Konstantin Anatolievich Osipov
ACTIVE CONTROL OF VORTEX SHEDDING FROM A CYLINDER
TSFP DIGITAL LIBRARY ONLINE, Vol.2, 2001, issue
Hani H. Nigim, Hide S. Koyama , Oeh Tathoyh