Improved lift force of a resonant-driven flapping-wing micro aerial vehicle by suppressing wing–body and wing–wing vibration coupling
Sign Up to like & getrecommendations! Published in 2020 at "Extreme Mechanics Letters"
DOI: 10.1016/j.eml.2020.100867
Abstract: Abstract We demonstrate the performance of a flapping-wing micro aerial vehicle focusing on the resonant vibration coupling effect. It was found that the average total lift force of our prototype robot, equipped with two resonant-driven… read more here.
Keywords: flapping wing; vibration coupling; wing micro; lift force ... See more keywords
A novel model for the lift force acting on a prolate spheroidal particle in an arbitrary non-uniform flow. Part I. Lift force due to the streamwise flow shear
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Multiphase Flow"
DOI: 10.1016/j.ijmultiphaseflow.2018.03.007
Abstract: Abstract The paper proposes a generic method to extend lift force models that were originally devised for single linear shear flow, to arbitrary flow conditions. The method computes the lift force due to the dominant… read more here.
Keywords: model; lift force; force; streamwise flow ... See more keywords
A new measuring concept to determine the lift force for distorted bubbles in low Morton number system: Results for air/water
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Multiphase Flow"
DOI: 10.1016/j.ijmultiphaseflow.2018.06.012
Abstract: Abstract The lift force, which strongly influences the spatial bubble distribution, is one of the most important non-drag forces. However, measurements in systems with a low Morton number are limited. In the present work, a… read more here.
Keywords: morton number; lift force; force;
Numerical investigation of lift-force generation on a moving circular cylinder in a uniform flow driven by longitudinal vortex
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Fluids and Structures"
DOI: 10.1016/j.jfluidstructs.2018.09.010
Abstract: Abstract A new concept for generating a steady lift force on a circular cylinder in a uniform flow is presented. A strip-plate is placed behind the upstream cylinder in a cruciform arrangement with a suitable… read more here.
Keywords: circular cylinder; lift force; cylinder; longitudinal vortex ... See more keywords
Particles in turbulent separated flow over a bump: Effect of the Stokes number and lift force
Sign Up to like & getrecommendations! Published in 2019 at "Physics of Fluids"
DOI: 10.1063/1.5119103
Abstract: Particle-laden turbulent flow that separates due to a bump inside a channel is simulated to analyse the effects of the Stokes number and the lift force on the particle spatial distribution. The fluid friction Reynolds… read more here.
Keywords: lift force; particle; stokes number; bump ... See more keywords
Segregation of large particles in dense granular flows suggests a granular Saffman effect
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review Fluids"
DOI: 10.1103/physrevfluids.3.074303
Abstract: We report on the scaling between the lift force and the velocity lag experienced by a single particle of different size in a monodisperse dense granular chute flow. The similarity of this scaling to the… read more here.
Keywords: lift force; segregation large; large particles; dense granular ... See more keywords
Analysis and study of the influence of the geometrical parameters of mini unmanned quad-rotor helicopters to optimise energy saving
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Automotive and Mechanical Engineering"
DOI: 10.15282/ijame.14.4.2017.11.0372
Abstract: The article discusses lift force generated by mini UAVs (Unmanned Aerial Vehicles). CFD (Computational Fluid Dynamics) simulations were made on the base of a 3D scanned propeller model. Influence of some geometrical parameters of propeller… read more here.
Keywords: lift force; lifting force; influence geometrical; force ... See more keywords