Unsteady Aerodynamics of Deformable Thin Airfoils
نویسندگان
چکیده
منابع مشابه
Unsteady Aerodynamics of Multiple Airfoils in Configuration
A potential flow model is used to study the unsteady flow past two airfoils in configuration, each of which is suddenly set into motion. The airfoil bound vortices are modeled using lumped vortex elements and the wake behind the airfoil is modeled by discrete vortices. This consists of solving a steady state flow problem at each time-step where unsteadiness is incorporated through the “zero nor...
متن کاملHelicopter Rotor Unsteady Aerodynamics
Unsteady helicopter rotor aerodynamics are complicated. This paper reviews some of the fundamentals and newer developments of unsteady helicopter aerodynamics. Rotor flow is beautiful and complex. Visualizing rotor flow allows for an appreciation of the following theories and solution attempts as well as nature’s complexities. The flow through a helicopter rotor with forward motion is shown in ...
متن کاملAnalysis of Unsteady Airfoils at Low Speeds
In this study exemplary results on the influence of two fundamental unsteady parameters, the reduced frequency k and the non-dimensional pitching rate α+, on the transition from a steady to an unsteady flow field around the reference airfoil BAC3-11/RES/30/21 are presented using experimental and numerical techniques. The tools used are described and their results verified with each other. On th...
متن کاملUnsteady aerodynamics of fluttering and tumbling plates
A. ANDERSEN, U. PESAVENTO and Z. JANE WANG Journal of Fluid Mechanics / Volume 541 / October 2005, pp 65 90 DOI: 10.1017/S002211200500594X, Published online: 11 October 2005 Link to this article: http://journals.cambridge.org/abstract_S002211200500594X How to cite this article: A. ANDERSEN, U. PESAVENTO and Z. JANE WANG (2005). Unsteady aerodynamics of fluttering and tumbling plates. Journal ...
متن کاملUnsteady Adjoint Approach for Design Optimization of Flapping Airfoils
This paper describes the work for optimizing the propulsive efficiency of flapping airfoils, i.e., improving the thrust under constraining aerodynamic work during the flapping flights by changing their shape and trajectory of motion with the unsteady discrete adjoint approach. For unsteady problems, it is essential to properly resolving time scales of motion under consideration and it must be c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Aircraft
سال: 2014
ISSN: 0021-8669,1533-3868
DOI: 10.2514/1.c031434