The aeroacoustic environment created by the external aerodynamics around the VEGA launcher has to be characterized in order to determine the pressure fluctuations perceived by the panel structures and to estimate the payload vibroacoustic environment. The pressure field characterization is addressed through wind tunnel tests planned at transonic and supersonic flow conditions on a scaled model. The experimental data have to be properly analysed in order to obtain reliable predictions of the wall pressure fluctuations properties on the full-scale launcher in actual flow conditions. The main issue delivered in the present report, is therefore the definition of a theoretical model of the Turbulent Boundary Layer (TBL) noise, which allows for the exploitation of the experimental data to determine the full-scale pressure fluctuation properties of interest.
Guj, G., Camussi, R., Giulietti, E., DI MARCO, A. (2004). Contratto CIRA Università degli studi “Roma Tre“ - Relazione 3: Evaluation of the BL properties through numerical simulations - Wall pressure fluctuatiuons semi-empirical models- Post processing techniques and related sofware validation.
Contratto CIRA Università degli studi “Roma Tre“ - Relazione 3: Evaluation of the BL properties through numerical simulations - Wall pressure fluctuatiuons semi-empirical models- Post processing techniques and related sofware validation
GUJ, Giulio;CAMUSSI, ROBERTO;GIULIETTI, Emanuele;DI MARCO, ALESSANDRO
2004-01-01
Abstract
The aeroacoustic environment created by the external aerodynamics around the VEGA launcher has to be characterized in order to determine the pressure fluctuations perceived by the panel structures and to estimate the payload vibroacoustic environment. The pressure field characterization is addressed through wind tunnel tests planned at transonic and supersonic flow conditions on a scaled model. The experimental data have to be properly analysed in order to obtain reliable predictions of the wall pressure fluctuations properties on the full-scale launcher in actual flow conditions. The main issue delivered in the present report, is therefore the definition of a theoretical model of the Turbulent Boundary Layer (TBL) noise, which allows for the exploitation of the experimental data to determine the full-scale pressure fluctuation properties of interest.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
