Efficient simulation of lift-drag polars for high-lift airfoils

航空是21世纪经济的重要组成部分，但也是噪音和大气污染物的主要来源。在日益严格的监管环境下，喷气式飞机的设计依赖于精确、高效、可靠的计算空气动力学软件来评估和优化潜在的设计。作为设计过程的一部分，庞巴迪宇航模拟了飞机在整个飞行包线范围内的性能，包括飞机的起飞和着陆配置。特别是在最大升力附近，准确预测升力和阻力是相当困难的，而且计算成本很高。该项目的目标是在二维上展示一种新的方法来有效地表征高升力机翼结构的性能。我们的长期目标是与庞巴迪宇航公司合作，将该项目中展示的技术扩展到全三维机翼和飞机结构，使他们能够更快、更有效地开发新的和改进的飞机。

Aviation is an essential part of the twenty-first century economy, but is also a major source of noise and atmospheric pollutants. In an increasingly strict regulatory environment, design of jet aircraft relies on accurate, efficient, reliable computational aerodynamics software to assess and optimize potential designs. As part of their design process, Bombardier Aerospace simulates aircraft performance across the flight envelope, including the take-off and landing configurations of an aircraft. Especially near maximum lift, the accurate prediction of lift and drag is quite difficult and computationally expensive. The goal of this project is to demonstrate in two dimensions a new approach for efficiently characterize performance of high-lift wing configurations. Our longer-term goal is to work with Bombardier Aerospace to extend the techniques demonstrated in this project to full three-dimensional wing and aircraft configurations, enabling them to develop new and improved aircraft more quickly and efficiently.