Advanced flow simulation methods in aircraft design

• Autorzy: Sillen M.
• Konferencja: Proceedings of the Fourth Seminar on Recent Research and Design Progress in Aeronautical Engineering and its Influence on Education/seminar(IV; 30.11-02.12.2000; Warszawa, Polska)
• Języki publikacji: EN

Abstrakty

EN

Computational Fluid Dynamics is an important tool in the aerodynamic design and analysis process. The continuous increase in computer speed and algorithm efficiency offers the aerospace industry a possibility to deploy increasingly more advanced numerical methods early in the design process. The flow modelling methods at Saab Aerospace have been developed to meet the requirements of short tum'around'time problem and advanced physical of viscous flow for applications in the aerospace field. The presented improvements focus on two main aspects, the efficient use of parallel computers and turbulence modelling. A load balancing method is described how to partition a structured multi-block grid for efficient use of parallel computers. The prevailing turbulence models employed In the design process in the aerospace industry today range from simple algebraic models through to linear eddy viscosity models. Initial at Saab Aerospace using an Explicit Algebraic Reynolds Stress Model (EARSM) on the k-o) transport equations is presented. A non-linear stress/strain relationship in the EARSM offers improved physical modelling of turbulent flow. A number of viscous flow examples on complex configurations, including a complete aircraft are presented in the paper.

Słowa kluczowe

EN

aircrafts; aircraft design; flow simulation methods; numerical methods

PL

samoloty; konstrukcja samolotu; metody symulacji lotu; metody numeryczne

• Wydawca: Institute of Aeronautics and Applied Mechanics, Warsaw University of Technology
• Czasopismo: Research Bulletin / Warsaw University of Technology, Institute of Aeronautics and Applied Mechanics
• Rocznik: 2000
• Tom: nr 10
• Strony: 183--190
• Opis fizyczny: Bibliogr. 9 poz., rys., tab., wykr.

Twórcy

autor

Sillen M.

• Saab Aerospace, SE-581 88 Linkoping, Sweden