Numerical Simulation “Airbus Vision and Strategy”
A step change in aircraft performance, the European aircraft industry is convinced this is a necessary objective if it is to stay competitive and to allow continued growth reducing the environmental impact as proposed by the European policymakers / by Innovation Union. New capabilities will be essential in exploring new concepts including alternative configurations, flow control technologies, laminar flow designs, and other new approaches enabling the necessary step change in performance on which the industry is relying. Simulation technologies are considered to ultimately provide thus capabilities that will underpin future aircraft design processes .
Aircraft design is a very competitive and demanding field. Highly optimised design with the objective of lower fuel consumption, lighter, quieter, safer, good performance and handling qualities involves a large number of different disciplines (aerodynamics, structure, system, vibration, acoustic, etc.) in the design process. This is a very difficult task which requires large experience together with highly efficient and accurate design/optimisation tools. An advanced toolset acting as a virtual facility, providing full information about design status, is the target of the European Aircraft industry. Automatically predicting flow physics, forces, radiated acoustics, stresses, evolution of the design status, and the optimal shape for any specified constraints. Moreover such tool needs to be extremely accurate and performs in realistic engineering design timescales. Numerical simulation tool is an essential target for every company involved in aeronautics. With this, engineers are set free to design and innovate rather than spending wasted time ‘driving’ their design system. Fast and efficient designs in short timescales, possibility to investigate innovative and challenging solutions with breakthrough technologies, virtual certification with lower costs, and applications involving other disciplines are all outcomes of such a tool. Regrettably, such a tool or toolset does not exist today, however there is recognition that such a capability needs to put in place, if the aerospace industry is to meet future performance and environmental targets. Industrial numerical simulation tools are presently suffering two main drawbacks that prevent their full industrial deployment for massive applications. These are: excessively large computational time for problems of industrial relevance, and the reliability and accuracy of the solutions at flight extremes. These two deficiencies are however linked, and in many cases indistinguishable.
KeywordsComputational Fluid Dynamics Maximum Lift Simulation Capability Computational Fluid Dynamics Method Aircraft Performance
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