Results 1 to 10 of about 528,937 (346)

Thermosuperrepellency of a hot substrate caused by vapour percolation

open access: yesCommunications Physics, 2021
Droplet impact on surfaces has wide applications regardless of the discipline area and several hypotheses have been put forward to explain the mechanism of film boiling.
J. Benedikt Schmidt   +5 more
doaj   +1 more source

Aerodynamics of two parallel bristled wings in low Reynolds number flow

open access: yesScientific Reports, 2022
Most of the smallest flying insects use bristled wings. It was observed that during the second half of their upstroke, the left and right wings become parallel and close to each other at the back, and move upward at zero angle of attack.
Yu Kai Wu, Yan Peng Liu, Mao Sun
doaj   +1 more source

Production of Micron-Sized Particles of Bauxite by Circulating Pulverization Experiment

open access: yesAdvances in Materials Science and Engineering, 2022
A novel process involving the production of micron-sized particles of bauxite by circulating pulverization experiment is proposed. This method is through high-pressure gas infiltration, uniform and equal stress loading, and overcoming tensile strength ...
Fan Yongbo   +6 more
doaj   +1 more source

Bidirectional wave-propelled capillary spinners

open access: yesCommunications Physics, 2023
When a solid body floats at the interface of a vibrating liquid bath, the motion of the object generates outwardly propagating surface waves. We here demonstrate that chiral objects on a vibrating fluid interface are set into steady rotation, with the ...
Jack-William Barotta   +4 more
doaj   +1 more source

A direct-hybrid CFD/CAA method based on lattice Boltzmann and acoustic perturbation equations

open access: yesActa Acustica, 2023
The accuracy of two direct coupled two-step CFD/CAA methods is discussed. For the flow field either a finite-volume (FV) method for the solution of the Navier–Stokes equations or a lattice Boltzmann (LB) method is coupled to a discontinuous Galerkin (DG)
Gondrum Miro   +4 more
doaj   +1 more source

Carbon nanotube sponges filled sandwich panels with superior high-power continuous wave laser resistance

open access: yesScientific Reports, 2022
Effect of highly-porous and lightweight carbon nanotube sponges on the high-power continuous wave laser ablation resistance of the sandwich panel was investigated experimentally.
Wu Yuan   +6 more
doaj   +1 more source

Evaluation of pressure and species concentration measurement using uncertainty propagation [PDF]

open access: yesE3S Web of Conferences, 2022
This paper presents a probabilistic uncertainity evaluation method as described in the Guide to the Expression of Uncertainty in Measurements (GUM) and its application to probe measurements on pressure and fuel concentration. All sources of unceratinties
Stefopoulos Georgios   +3 more
doaj   +1 more source

Characterising Fatigue Behaviour of Nodular Cast Iron Using Micromechanical Simulations [PDF]

open access: yesMATEC Web of Conferences, 2019
Elastic-plastic porous materials experience an increase in the mean void volume fraction when they are subjected to cyclic loading. This behavior is known both from the experiments and simulations in the literature.
Lukhi Mehul   +2 more
doaj   +1 more source

The fluid mechanics of poohsticks [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020
The year 2019 marked the bicentenary of George Gabriel Stokes, who in 1851 described the drag—Stokes drag—on a body moving immersed in a fluid, and 2020 is the centenary of Christopher Robin Milne, for whom the game of poohsticks was invented; his father A. A. Milne’s The House at Pooh Corner , in which it was first
Julyan H. E. Cartwright, Oreste Piro
openaire   +4 more sources

A machine learning model for predicting the ballistic impact resistance of unidirectional fiber-reinforced composite plate

open access: yesScientific Reports, 2021
It has been a vital issue to ensure both the accuracy and efficiency of computational models for analyzing the ballistic impact response of fiber-reinforced composite plates (FRCP). In this paper, a machine learning (ML) model is established in an effort
X. D. Lei   +5 more
doaj   +1 more source

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