Simulation of Surface Pressure Fluctuations on an Airbus-A320 Fuselage at Cruise Conditions
| Autor: | Alexander Klabes, Christina Appel, Stefan Haxter, Nan Hu, Sören Callsen |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Convection
Aerospace Engineering Dirac delta function 02 engineering and technology Computational fluid dynamics Surface pressure 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics symbols.namesake 0203 mechanical engineering Incompressible flow 0103 physical sciences Experimentelle Verfahren GO Physics 020301 aerospace & aeronautics fuselage wall pressure fluctuations business.industry Mechanics Fuselage Technische Akustik cruise condition symbols Poisson's equation business Reynolds-averaged Navier–Stokes equations Simulation |
| Zdroj: | AIAA Journal. 59:1585-1597 |
| ISSN: | 1533-385X 0001-1452 |
| Popis: | The fuselage surface pressure fluctuations on an Airbus-A320 aircraft at cruise conditions are simulated by solving a Poisson equation. The right-hand-side source terms of the Poisson equation, including both the mean-shear term and the turbulence-turbulence term, are realized with synthetic turbulence generated by the fast random particle-mesh method. The stochastic realization is based on time-averaged turbulence statistics derived from a Reynolds averaged Navier-Stokes simulation under the same condition as in the flight tests conducted with DLR, German Aerospace Center's Airbus-A320 research aircraft. The fuselage surface pressure fluctuations are calculated at three streamwise positions from front to rear, corresponding to the measurement positions in the flight tests. Features of the pressure fluctuations relevant to the fuselage surface excitation are obtained and analyzed. A good agreement for one- and two-point spectral characteristics of the surface pressure fluctuations is found between the simulation and flight-test results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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