Results 101 to 110 of about 1,940 (222)

Equipment room for Riblet Snowmass #2 lift

, 2022
Date scanned: 2004-06-21.Held in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines.Snowmass #2 Riblet ...
Dwyer, Charles F.
core  

Investigation on the Mechanism of Drag Modification over Triangular Riblets

Journal of Applied Fluid Mechanics, 2020
This paper presents experimental and numerical investigations on the modification of local spanwise skin-friction over triangular riblets under the total drag reduction condition.
M. M. Zhang, Z. L. Zhang, M. Zhao
doaj  

VISCOUS DRAG REDUCTION ON AXISYMMETRIC BODIES USING HELICAL RIBLETS [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2014
A series of subsonic wind tunnel tests was conducted on an ogive-cylinder-flare configuration at zero angle of attack to study the effects of small helical protuberances on viscous drag reduction behavior.
Ali Davari
doaj  

NACA 2412 Drag Reduction Using V-Shaped Riblets

Eng
This research focuses on addressing a significant concern in the aviation industry, which is drag. The primary objective of this project is to achieve drag reduction through the implementation of riblets on a wing featuring the NACA 2412 aerofoil ...
Smitha Mol Selvanose, Siva Marimuthu, Abdul Waheed Awan, Kamran Daniel   +3 more
doaj   +1 more source

Electrical wiring for Vail Riblet #6

, 2022
Date scanned: 2004-06-23.Held in the Russell L.
Dwyer, Charles F.
core  

Synthesis of Antenna Arrays of Maximum Directivity for a Specified Sidelobe Level

Iranian Journal of Electrical and Electronic Engineering, 2021
Linear and planar antenna arrays are synthesized to have maximum directivity for a specified sidelobe level. The directivity is maximized subject to a given SLL. The beamwidth and the zeros of array factor are studied as well as the directivity.
M. Khalaj-Amirhosseini
doaj  

Riblet chair at National Ski Areas Association convention

, 2022
Date scanned: 2004-05-17."New Riblet chair - NSAA conv. - H.V., Calif.
Dwyer, Charles F.
core   +1 more source

Decrement of spanwise vortices by a drag-reducing riblet surface

, 2018
In this paper, the spanwise vortices in a turbulent flow over drag-reducing V-shaped riblet grooves have been investigated experimentally. The height and lateral spacing of each V-shaped riblet groove are 176.8 m and 300 m, respectively.
Lee, SJ, Choi, YS
core   +1 more source

Riblet sheave assembly at Heavenly Valley, California

, 2022
Date scanned: 2004-06-15.Held in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines.Heavenly Valley - Riblet ...
Dwyer, Charles F.
core  

Riblet Effects on Gortler Vortex Development over a Concave Surface

, 1996
Riblet effects on Goertler vortex development in laminar and transitional flows were measured using three-dimensional laser-Doppler anemometry. Three freestream velocities were tested such that riblet spacing corresponded to Goertler vortex (GV ...
Rothenflue, James A.
core