Active flow control in supersonic nozzle mainly concerns Fluidic Thrust Vectoring (FTV) strategies. Thrust Vectoring in fixed symmetric nozzles can be obtained by generating a local perturbation at wall causing flow separations, asymmetric pressure distributions and therefore, the vectoring of the primary jet thrust. The control action can be steady, e.g. continuous blowing, or pulsating, e.g. by synthetic jet actuators. In the paper a numerical procedure is explained, which is able to deal with most of the FTV strategies as well as with continuous and pulsating flow excitation. The flow governing equations are solved according to a finite volume discretization of the compressible URANS equations. The effectiveness of different combinations of FTV strategies and flow actuations are presented. The numerical results obtained are compared with the experimental data found in the open literature.
Active Flow Control in Supersonic Nozzles / Ferlauto, Michele. - ELETTRONICO. - 1978:(2018), p. 470035. (Intervento presentato al convegno 15th International Conference on Numerical Analysis and Applied Mathematics tenutosi a Thessaloniki, Greece nel 25-30 September 2017) [doi: 10.1063/1.5044105].
Active Flow Control in Supersonic Nozzles
FERLAUTO, Michele
2018
Abstract
Active flow control in supersonic nozzle mainly concerns Fluidic Thrust Vectoring (FTV) strategies. Thrust Vectoring in fixed symmetric nozzles can be obtained by generating a local perturbation at wall causing flow separations, asymmetric pressure distributions and therefore, the vectoring of the primary jet thrust. The control action can be steady, e.g. continuous blowing, or pulsating, e.g. by synthetic jet actuators. In the paper a numerical procedure is explained, which is able to deal with most of the FTV strategies as well as with continuous and pulsating flow excitation. The flow governing equations are solved according to a finite volume discretization of the compressible URANS equations. The effectiveness of different combinations of FTV strategies and flow actuations are presented. The numerical results obtained are compared with the experimental data found in the open literature.File | Dimensione | Formato | |
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https://hdl.handle.net/11583/2685039
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