Results 21 to 30 of about 8,560 (259)
Deformation Measurements of Helicopter Rotor Blades Using a Photogrammetric System
Photonics, 2022 As an important part of the helicopter, the rotor directly affects flight safety and flight quality. Knowledge of the rotor dynamic behaviors is significant for validating and optimizing the performance of the helicopter rotor system.
Chenglin Zuo +4 more
doaj +1 more source
Numerical Simulations of Vertical Discrete Gusts Driven by Trailing Edge Blowing
International Journal of Aerospace Engineering, 2023 A new type of gust generator generates the airflow oscillation in the wind tunnel through the Coanda effect of the unsteady trailing edge blowing, which has been shown to have strong potential for accurately simulating discrete gusts.
Yang Shi +5 more
doaj +1 more source
A decomposition formula for the wall heat flux of a compressible boundary layer
Advances in Aerodynamics, 2021 Understanding the generation mechanism of the heat flux is essential for the design of hypersonic vehicles. We proposed a novel formula to decompose the heat flux coefficient into the contributions of different terms by integrating the conservative ...
Dong Sun +5 more
doaj +1 more source
The Aerodynamics of Reacting Substances [PDF]
Proceedings of the National Academy of Sciences, 1939 Speaking broadly, the subject of aerodynamics is concerned not only with the forces exerted by a single fluid on solid bodies but also with the behavior of mixtures such as those which occur in the gasoline engine and in the atmosphere. In a complete study of the motion of a fluid attention must be paid to reactions between its constituents ...
openaire +2 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction This study investigated the safety and efficacy of single‐needle Rheocarna therapy for chronic limb‐threatening ischemia (CLTI) with wounds. Methods Six patients with CLTI involving ulcers unresponsive to revascularization underwent single‐needle Rheocarna treatment.
Yasutaka Yamauchi +9 more
wiley +1 more source
Study on the Similarity Criteria of Aircraft Structure Temperature/Stress/Dynamic Response
Journal of Thermal Science and Technology, 2012 The performance parameters of thermal protection system are essential for the design and optimization of high-speed aircraft. The flight-ground conversion is a valid method to provide the effective support to the design of the thermal protection ...
Lei LIU +4 more
doaj +1 more source
Study on Flow Mechanism of a Morphing Supercritical Airfoil
Shock and Vibration, 2021 In order to maintain the best performance in flight, a new concept, morphing aircraft, has been proposed, which can change the real-time aerodynamic characteristics under different flight conditions.
Yuanjing Wang +4 more
doaj +1 more source
Aerospace, 2023 A body flap/RCS-integrated configuration is often used to achieve pitch trimming and controlled flight in near space for hypersonic vehicles. Under the high temperature and pressure load induced by the expansion wave at the nozzle exit, the body flap is ...
Ruhao Hua, Qi Chen, Zhao Wan, Hao Chen
doaj +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida +6 more
wiley +1 more source
Energies, 2023 The enhancement in the jet pressure ratio and jet velocity contributes to expanding the control efficiency and control boundary of circulation control airfoil under high subsonic incoming flow. However, because of an excessive jet pressure ratio, the jet
Meng He, Liu Zhang, Chang Li, Lei Zhao
doaj +1 more source