. "4"^^ . . "314264" . . "[976D05ACCE35]" . "EXPERIMENTAL STUDY OF INFLUENCE OF ACTIVE METHODS OF FLOW CONTROL ON THE FLOW FIELD PAST CYLINDER" . . . . . . . "3"^^ . . "flow control; synthtetic jet; cylinder; amplitude modulation"@en . "21220" . "EXPERIMENTAL STUDY OF INFLUENCE OF ACTIVE METHODS OF FLOW CONTROL ON THE FLOW FIELD PAST CYLINDER"@en . . "The main emphasis of the paper is placed on an influence of an active method of flow control, as a synthetic jet, on a flow field around a cylinder of aspect ratio 1.8. It summarizes the influence of basic factors that affect the design of the synthetic jet actuator, particularly Strouhal number - nondimensional frequency (F+), Stokes number of output orifice (St), Reynolds number (Re), momentum coefficient (c) and a position of the output orifice of the synthetic jet actuator. The actuator is positioned in front of the boundary layer separation. The principle of a flow control with and without amplitude modulation was used in order to generate lower actuating frequency. An amount of input energy of the actuators that influences the flow filed was measured. A change of lift and drag coefficient was calculated from measured pressure distribution on the model. The alternatives with and without flow control are compared through the relation of saved up and the added energy."@en . "Mat\u011Bjka, Milan" . . . "Pick, Petr" . . "P(1M06059), P(GA101/08/1112)" . "RIV/68407700:21220/09:00161193!RIV13-MSM-21220___" . "The main emphasis of the paper is placed on an influence of an active method of flow control, as a synthetic jet, on a flow field around a cylinder of aspect ratio 1.8. It summarizes the influence of basic factors that affect the design of the synthetic jet actuator, particularly Strouhal number - nondimensional frequency (F+), Stokes number of output orifice (St), Reynolds number (Re), momentum coefficient (c) and a position of the output orifice of the synthetic jet actuator. The actuator is positioned in front of the boundary layer separation. The principle of a flow control with and without amplitude modulation was used in order to generate lower actuating frequency. An amount of input energy of the actuators that influences the flow filed was measured. A change of lift and drag coefficient was calculated from measured pressure distribution on the model. The alternatives with and without flow control are compared through the relation of saved up and the added energy." . "Proch\u00E1zka, Pavel" . "EXPERIMENTAL STUDY OF INFLUENCE OF ACTIVE METHODS OF FLOW CONTROL ON THE FLOW FIELD PAST CYLINDER" . "EXPERIMENTAL STUDY OF INFLUENCE OF ACTIVE METHODS OF FLOW CONTROL ON THE FLOW FIELD PAST CYLINDER"@en . . . "RIV/68407700:21220/09:00161193" . "No\u017Ei\u010Dka, Ji\u0159\u00ED" . . . .