"2004-01-01+01:00"^^ . " aerodynamic forces" . " turbulence" . . "synthetic jets" . "IAA2076403" . . "0"^^ . "The physical mechanism of a synthetic jet and influence of both design and operational parameters on the resulting flow-field pattern will be studied experimentally. The research will continue with interaction of synthetic jets with both free and wall flow, in particular with boundary layer meeting conditions for its separation. Near-wall active control srategy using synthetic jets will be proposed, which leads to the boundary layer separation postponing or forced reattachment of already separated boundary layer and thus minimizing of the separation region size. Possibilities of active control without the feedback and with it will be considered, using classical and MEMS technology based active elemnts. The results of experiments will be compared with those of mathematical modeling using commercial software."@en . "2008-12-31+01:00"^^ . . "Active flow control using synthetic jets"@en . "Byly z\u00EDsk\u00E1ny nov\u00E9 v\u00FDsledky spojen\u00E9 s dynamick\u00FDm chov\u00E1n\u00EDm proud\u011Bn\u00ED p\u0159i \u0159\u00EDzen\u00ED pomoc\u00ED syntetizovan\u00FDch paprsk\u016F, byla navr\u017Eena strategie efektivn\u00EDho \u0159\u00EDzen\u00ED proud\u011Bn\u00ED, zejm\u00E9na mezn\u00ED vrstvy s ohledem na jej\u00ED p\u0159echod do turbulence a odtr\u017Een\u00ED."@cs . . . "1"^^ . . "0"^^ . " jet in cross flow" . . . . . . "The new results on dynamical behaviour of flow controlled by synthetic jets were obtained, the effective control strategy was proposed, particularly for transition and separation control of a boundary layer."@en . . . "2008-02-21+01:00"^^ . "69"^^ . "http://www.isvav.cz/projectDetail.do?rowId=IAA2076403"^^ . . "69"^^ . "synthetic jets; vortices; boundary layer; separation; jet in cross flow; turbulence; aerodynamic forces; control"@en . " separation" . "Experiment\u00E1ln\u011B bude zkoum\u00E1n fyzik\u00E1ln\u00ED mechanismus generov\u00E1n\u00ED syntetick\u00FDch paprsk\u016F a vliv kontruk\u010Dn\u00EDch i provozn\u00EDch parametr\u016F na vlastnosti v\u00FDsledn\u00E9ho proudov\u00E9ho pole. D\u00E1le bude studov\u00E1na interakce syntetick\u00FDch paprsk\u016F s voln\u00FDmi i st\u011Bnov\u00FDmi proudy, zejm\u00E9na s mezn\u00ED vrstvou za podm\u00EDnek vedouc\u00EDch ke vzniku odtr\u017Een\u00ED. Bude navr\u017Eena strategie aktivn\u00EDho \u0159\u00EDzen\u00ED proud\u011Bn\u00ED v bl\u00EDzkosti st\u011Bny, kter\u00E1 vyu\u017E\u00EDv\u00E1 syntetick\u00E9 paprsky a kter\u00E1 vede k odd\u00E1len\u00ED odtr\u017Een\u00ED mezn\u00ED vrstvy \u010Di k vyvol\u00E1n\u00ED znovup\u0159ilnut\u00ED ji\u017E odtr\u017Een\u00E9 mezn\u00ED vrstvy a t\u00EDm ke zmen\u0161en\u00ED oblasti odtr\u017Een\u00ED. Budou zkoum\u00E1ny mo\u017Enosti aktivn\u00EDho \u0159\u00EDzen\u00ED bez zp\u011Btn\u00E9 vazby i s n\u00ED, za pou\u017Eit\u00ED jak klasick\u00FDch aktivn\u00EDch prvk\u016F, tak prvk\u016F typu MEMS. V\u00FDsledky experiment\u016F budou konfrontov\u00E1ny s v\u00FDsledky matematick\u00E9ho modelov\u00E1n\u00ED pomoc\u00ED komer\u010Dn\u00EDho softwaru." . "Aktivn\u00ED \u0159\u00EDzen\u00ED proud\u011Bn\u00ED pomoc\u00ED syntetick\u00FDch paprsk\u016F" . . " vortices" . . "2009-07-02+02:00"^^ . . . . " boundary layer" .