Results 21 to 30 of about 10,032 (211)
The Aerodynamic Characteristics of a Diamond Joined‐Wing Morphing Aircraft
International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022 This paper presents a new‐concept aircraft with a diamond joined‐wing morphing configuration, which simultaneously adjusts the sweep angles of both the front wing and rear wings by a telescopic support rod. The compressible Navier‐Stokes equations in the conservative form are solved to analyze the configuration characteristics and the aerodynamic ...
Shuai Miao +5 more
wiley +1 more source
The Profile Loss of Additive Manufactured Blades for Organic Rankine Cycle Turbines
International Journal of Turbomachinery, Propulsion and Power, 2022 Results from an experimental profile loss study are presented of an additive manufactured linear turbine cascade placed in the test section of a closed-loop organic vapor wind tunnel.
Leander Hake +4 more
doaj +1 more source
Dusting Hole Film Cooling Heat Transfer on a Transonic Turbine Blade Tip
International Journal of Rotating Machinery, Volume 2022, Issue 1, 2022., 2022 Investigated is a transonic turbine blade tip with a squealer rim and a squealer recess, with a single dusting film cooling hole contained within the leading edge region of the squealer recess. Data are provided for transonic flow conditions for a range of film cooling blowing ratios for two tip gap values, using a linear cascade, with no relative ...
Ward Manneschmidt +7 more
wiley +1 more source
International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022 Establishing an accurate, fast, and low‐risk flutter boundary prediction method is of great significance for flight vehicle design. In this paper, a ground flutter boundary prediction method (GFBP) based on experimental structural frequency response functions (FRFs) is proposed.
Changkun Yu +3 more
wiley +1 more source
International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022 Large‐slenderness‐ratio aircraft in which a large portion of the aircraft’s mass is concentrated along its centreline face the problem of severe lateral‐directional coupling. Previous research has not fully considered the inertia product when conducting stability analyses of such aircraft. However, neglecting the inertia product may threaten the safety
Huitao Lyu +5 more
wiley +1 more source
Aerospace, 2022 One of the most difficult steps in estimating the cruise performance characteristics of high-subsonic transport-category turbofan-powered airplanes is the estimation of the transonic wave drag. Modern jet airplanes cruise most efficiently in the vicinity
Jan Wislicenus, Nihad E. Daidzic
doaj +1 more source
Aerodynamic thermal analysis of a spinning winged projectile
Case Studies in Thermal Engineering, 2022 Aerodynamic heating of spinning flight vehicles have critical military applications such as flight testing, location tracking, stealth, and thermal protection. Based on the numerical method which is verified to be effective in the wind tunnel tests, this
Jun Zhang +6 more
doaj +1 more source
Separation Control for a Transonic Convex Corner Flow Using Ramp‐Type Vortex Generators
International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022 A flap can be used to control wing camber and as a high‐lift device. A convex corner is a simplified model of the upper surface of a flap. At transonic speeds, shock‐induced boundary layer separation (SIBLS) occurs at greater freestream Mach numbers and deflection angles. This results in energy losses and a reduction in aerodynamic performance.
Kao-Chun Su +3 more
wiley +1 more source
Design Improvement of a BWB Aerodynamic Performance at Cruise and Take‐Off Speeds
International Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022 As a high‐performance aircraft, BWB (blended wing body) has attracted the attention of many countries around the world. A 300‐seat BWB design is proposed by the Airplane Concept Design Institute of Northwestern Polytechnical University, which is also called SWB. The aerodynamic performance of it is evaluated by CFD (computational fluid dynamics).
Gang Yu, Yuling Duan, Kenneth M. Sobel
wiley +1 more source
Journal of Applied Mathematics, Volume 2022, Issue 1, 2022., 2022 At transonic velocity, ejector nozzles require third auxiliary intake valves to increase air intake, resulting in good thrust performance. However, different intake structures will inevitably lead to different internal flow‐field structures and thrust performances. To evaluate the differences between nozzles with full‐open valve and open‐close valve at
Zijie Li, Hao Wang, Dan Huang
wiley +1 more source