Results 21 to 30 of about 3,471,320 (284)

Change in drag, apparent slip and optimum air layer thickness for laminar flow over an idealised superhydrophobic surface [PDF]

, 2013
Analytic results are derived for the apparent slip length, the change in drag and the optimum air layer thickness of laminar channel and pipe flow over an idealised superhydrophobic surface, i.e. a gas layer of constant thickness retained on a wall.
Newton, M.I., Busse, A., McHale, G., McHale, Glen, Sandham, Neil D., Busse, Angela, Newton, Michael, Newton, Michael I., Sandham, N., Sandham, Neil   +9 more
core   +1 more source

Comparative computational analysis of drag-reducing devices for tractor-trailers [PDF]

, 2008
Constant rise in fuel price in recent times has caused manufacturers of heavy commercial vehicles (HCV) to turn to efficient aerodynamic design of trucks, wagons, tractors as well as trailers.
Malviya, Vihar, Fieldhouse, John D., Mishra, Rakesh   +2 more
core   +4 more sources

Drag Reduction Research on Fusion Winglet

Hangkong gongcheng jinzhan, 2018
Effectively decreasing induced drag is of important significance for the aircraft to reduce the fuel consumption and increase the flight range. Numerical simulation with CFD methods are carried out to obtain the aerodynamic characteristics, especially ...
Ma Yumin, Wei Jianlong
doaj   +1 more source

Exploring the possible role of small scale terrain drag on stable boundary layers over land [PDF]

, 2008
This paper addresses the possible role of unresolved terrain drag, relative to the turbulent drag on the development of the stable atmospheric boundary layer over land.
Mahrt, L., Holtslag, A.A.M., Steeneveld, G.J., Wiel, B.J.H., van de, Nappo, C.J.   +4 more
core   +1 more source

A Method for Evaluating the Influence of the Field Wind Environment on Cross-Country Skiing Performance

Applied Sciences, 2022
Aerodynamic drag plays an important role in high-speed skiing. The wind-induced thrust or resistance of athletes, the sliding speed, and the work to overcome the aerodynamic drag are greatly affected by wind; therefore, reducing wind-induced drag is a ...
Jiawei He, Li Yan, Ming Zhu, Dabo Xin, Yagebai Zhao, Hongfu Zhang   +5 more
doaj   +1 more source

Turbulent channel flow near maximum drag reduction: simulations, experiments and mechanisms [PDF]

, 2003
It is well known that the drag in a turbulent flow of a polymer solution is significantly reduced compared to Newtonian flow. Here we consider this phenomenon by means of a direct numerical simulation of a turbulent channel flow.
Hulsen, MA, Brule, van den, B.H.A.A., Hunt, J.C.R., Boersma, BJ, Nieuwstadt, FTM, Nieuwstadt, F.T.M., Hunt, JCR, Hulsen, M.A., Van Den Brule, BHAA, Patasinski, PK, Ptasinski, P.K., Boersma, B.J.   +11 more
core   +1 more source

Understanding box wing aircraft: essential technology to improve sustainability in the aviation industry

Aviation, 2016
This paper presents an introduction to box wing aircraft technology, and an overview of current research efforts in this important area. Box wing technology offers a means of significantly reducing aircraft fuel consumption and hence improving economic ...
Alexander Somerville, Matthew Marino, Glenn Baxter, Graham Wild   +3 more
doaj   +1 more source

Drag-free and attitude control for the GOCE satellite [PDF]

, 2008
The paper concerns Drag-Free and Attitude Control of the European satellite Gravity field and steady-state Ocean Circulation Explorer (GOCE) during the science phase.
Canuto, Enrico
core   +1 more source

Analysis on induced drag characteristics of forward swept wings

Hangkong gongcheng jinzhan
Forward swept wing is one of the plane forms of aircraft configuaration. For aerodynamic characteristics of induced drag of forward swept wings，the existing papers have provided confusing understandings.
YE Zhengyin, ZHOU Xinxin, YE Fuchen
doaj   +1 more source

An analysis on Aerodynamics Performance Simulation of NACA 23018 Airfoil Wings on Cant Angles

JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering), 2017
Winglet attached on the tip of aircraft wings to increase lift. Mainly, winglet used for increasing aerodynamic efficiency, it decreases induced drag caused by vortex on wings tip.
Setyo Hariyadi S. P.
doaj   +1 more source