Review of mechanical research and aerodynamic drag reduction of bionic surface micro-structures
Journal of Hebei University of Science and Technology, 2017 Some typical living creatures with a non-smooth surface in nature are introduced. The law of the fact that an appropriate micro-structure surface can transform the turbulent structure of near-wall region is briefly stated. The research status of the type
Zheng WANG, Tian LI, Ming LI, Jiye ZHANG
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A numerical technique for analysis of wave drag at lifting conditions [PDF]
Numerical technique for analysis of wave drag at lifting conditions for supersonic ...
Harris, R. V., Jr.
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Changes in turbulent dissipation in a channel flow with oscillating walls
, 2012 Harmonic oscillations of the walls of a turbulent plane channel flow are studied by direct numerical simulations to improve our understanding of the physical mechanism for skin-friction drag reduction. The simulations are carried out at constant pressure
Batchelor +8 more
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Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation
Advanced Materials, EarlyView.Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju +7 more
wiley +1 more source
Inlet spillage drag tests and numerical flow-field analysis at subsonic and transonic speeds of a 1/8-scale, two-dimensional, external-compression, variable-geometry, supersonic inlet configuration [PDF]
Accurate spillage drag and pressure data are presented for a realistic supersonic inlet configuration. Results are compared with predictions from a finite-differencing, inviscid analysis computer procedure. The analytical technique shows good promise for
Hawkins, J. E. +2 more
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Analysis of Rudder Span Effects On Ims Hydrodynamic Induced Drag
The International Journal of Small Craft Technology, 2002 The physical draft of keels has long been known to be critical for the upwind performance of sailboats and has long been an element of handicap rules. The IMS rule uses a relatively sophisticated algorithm for assessing keel draft yet, as is the case with other rules, has never included any influence of rudder span.
Teeters, J., Pallard, R., Muselet, C.
openaire +5 more sources
Multiphysics‐Driven Assembly of Biomimetic Vesicles
Advanced Materials, EarlyView.Artificial extracellular vesicles, derived from cell membranes, are manufactured using a multiphysics‐integrated microfluidic platform that combines nanoknife membrane rupture, herringbone chaotic mixing, and acoustothermal modulation. This standardizable workflow enables the predictable control of vesicle formation and therapeutic loading, while ...
Timofei Solodko +16 more
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TechnologiesThis paper presents the subject of external ballistics. The presented research employs a contemporary methodological approach, integrating theoretical analysis, CFD simulations, and experimental measurements.
Jiří Maxa +8 more
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Correaltion of full-scale drag predictions with flight measurements on the C-141A aircraft. Phase 2: Wind tunnel test, analysis, and prediction techniques. Volume 1: Drag predictions, wind tunnel data analysis and correlation [PDF]
The degree of cruise drag correlation on the C-141A aircraft is determined between predictions based on wind tunnel test data, and flight test results. An analysis of wind tunnel tests on a 0.0275 scale model at Reynolds number up to 3.05 x 1 million/MAC
Blackerby, W. T. +2 more
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Intermittency in Two-Dimensional Turbulence with Drag
, 2005 We consider the enstrophy cascade in forced two-dimensional turbulence with a linear drag force. In the presence of linear drag, the energy wavenumber spectrum drops with a power law faster than in the case without drag, and the vorticity field becomes ...
A. N. Kolmogorov +9 more
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