|Support type:||Scholarships in Brazil - Scientific Initiation|
|Effective date (Start):||December 01, 2007|
|Effective date (End):||November 30, 2008|
|Field of knowledge:||Engineering - Aerospace Engineering - Aerodynamics|
|Principal Investigator:||Paulo Celso Greco Júnior|
|Grantee:||Andre Maurice Halal Lombardi|
|Home Institution:||Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil|
The objective of the proposed study is the integration between a method for the correction of viscous effects and a computational code for the solution of the bidimensional Euler Equations for unsteady transonic flows, both developed in previous researches and available for our work. In transonic flows, the interaction between shock wave and boundary layer may have a significant influence on the pressure distribution. The analysis of this interaction aims mainly at aeroelastic phenomena like flutter, limit cycle oscillations and vibration control. We use an integral method for the viscous correction in which the calculation of the boundary layer is based on the velocity field of the inviscid flow. After obtaining the displacement thickness, the inviscid flow velocity is updated and this process is repeated until convergence is achieved for each time instant. The efficiency of the computational simulations will be evaluated by comparison with published experimental results of the pressure distribution in cases in which there is a significant interaction between shock and boundary layer.