Effect of Wing-Wing Interaction on the Propulsive Performance of Two Flapping Wings at Biplane Configuration [PDF]
Applied Bionics and Biomechanics, 2018 The biplane counter-flapping wing is a special type of wing flapping which is inspired from the fish and insect in nature. The propulsive performance is one of the most important considerations for this kind of flapping wing.
Jianyang Zhu, Bin Lei
doaj +2 more sources
Comparison of lower-body neuromuscular performance profiles between 100 m and 400 m Olympic sprinters [PDF]
Frontiers in Sports and Active LivingThe purpose of the present study was to examine and compare the lower-body neuromuscular performance characteristics of Olympic-level 100 m and 400 m sprinters.
Dimitrije Cabarkapa +4 more
doaj +2 more sources
Development of an Adaptive Aero-Propulsive Performance Model in Cruise Flight – Application to the Cessna Citation X [PDF]
INCAS Bulletin, 2022 To accurately predict the amount of fuel needed by an aircraft for a given flight, a performance model must account for engine and airframe degradation. This paper presents a methodology to identify an aero-propulsive model to predict the fuel flow of an
Anca STEPAN +2 more
doaj +1 more source
Numerical Analysis of the Effect of the Non-Sinusoidal Trajectories on the Propulsive Performance of a Bionic Hydrofoil [PDF]
Journal of Applied Fluid Mechanics, 2022 Aquatic animals usually generate the effective propulsive force via non-sinusoidally flapping their fins. Inspired by the kinematics of fish, the propulsive characteristics of a NACA012 hydrofoil is numerically studied in this paper.
F. Li, P. Yu, N. Deng, G. Li, X. Wu
doaj +1 more source
Propulsive efficiency and non- expert swimmers performance [PDF]
Motricidade, 2009 Propulsive efficiency is one of the most interesting issues for competitive swimming researchers, has it presents significant relationships with the swimmer’s biophysical behavior and his/her performance. Although propulsive efficiency is a variable that
T.M. Barbosa +7 more
doaj +3 more sources
Acoustic and propulsion performance facility [PDF]
The Journal of the Acoustical Society of America, 1974 A unique facility has been developed at the Lockheed-Georgia Company to evaluate, simultaneously, acoustic and propulsion performance characteristics of lift augmentation systems of the type considered for V/STOL aircraft. The facility is ideally suited for concept parametric and systematic noise-reduction investigations where the relationship between ...
G. Swift, L. G. Smith
openaire +1 more source
AIP Advances, 2022 The propulsive wing is a new concept wing of automatic propulsion with high lift coefficients and has great application value in plant protection and forest fire control. The propulsive wing wake is a reverse Bénard–von Kármán (RBvK) vortex street, which
Jiaxin Lu +3 more
doaj +1 more source
Influence of a Deflectable Leading-Edge on a Flapping Airfoil
Aerospace, 2023 Flapping wing dynamics are of great interest in many research areas, such as bioinspired systems and aircraft aeroelasticity. The findings of the present study provide significant insight into the importance of the leading-edge dynamic incidence on the ...
Emanuel A. R. Camacho +2 more
doaj +1 more source
Study on effect of geometry on performance of pulse detonation rocket engines
Xibei Gongye Daxue Xuebao, 2021 In order to investigate the effect of the geometry on the performance of pulse detonation rocket engines under valveless self-adaptive working mode, the multi-cycle experiment was carried out on the pulse detonation rocket engines with different mixing ...
doaj +1 more source
Comparison of Aero-Propulsive Performance Predictions for Distributed Propulsion Configurations [PDF]
55th AIAA Aerospace Sciences Meeting, 2017 NASA's X-57 "Maxwell" flight demonstrator incorporates distributed electric propulsion technologies in a design that will achieve a significant reduction in energy used in cruise flight. A substantial portion of these energy savings come from beneficial aerodynamic-propulsion interaction.
Nicholas K. Borer +7 more
openaire +1 more source