Results 21 to 30 of about 96,995 (295)

Reynolds-dependence of turbulent skin-friction drag reduction induced by spanwise forcing [PDF]

, 2016
This paper examines how increasing the value of the Reynolds number $Re$ affects the ability of spanwise-forcing techniques to yield turbulent skin-friction drag reduction.
Gatti, Davide, Quadrio, Maurizio
core   +2 more sources

Bearing capacity of piles with negative skin friction based on field tests

Results in Engineering
The coastal regions of China possess extensive deep layers of soft soil. Consequently, post-construction settlement inevitably induces negative skin friction on pile foundations.
Bo Li, Jian-fei Yu
doaj   +3 more sources

Comparative analysis of international codes of practice for pile foundation design considering negative skin friction effect

International Journal of Geo-Engineering, 2022
Negative skin friction (NSF) effect on pile foundation design attracts the attention of geotechnical engineers and requires comprehensive research. However, the ways of consideration of NSF for the pile foundation design vary with different design codes.
Assel Zhanabayeva, Shynggys Abdialim, Alfrendo Satyanaga, Jong Kim, Sung-Woo Moon   +4 more
doaj   +1 more source

Finger pad friction and tactile perception of laser treated, stamped and cold rolled micro-structured stainless steel sheet surfaces

Friction, 2017
Tactile perception is a complex system, which depends on frictional interactions between skin and counter-body. The contact mechanics of tactile friction is governed by many factors such as the state and properties of skin and counter-body.
S. Zhang, X. Zeng, D. T. A. Matthews, A. Igartua, E. Rodriguez–Vidal, J. Contreras Fortes, E. Van Der Heide   +6 more
doaj   +1 more source

Apparent Randomness of the Normal-Force Dependence of the Coefficient of Friction between a Bare Finger and Artificial Skin under Active Tactile Exploration

Applied Mechanics, 2022
When a finger actively slides over a surface, contact conditions including the contact area, sliding speed, and finger moisture naturally fluctuate.
Koki Inoue, Shogo Okamoto, Yasuhiro Akiyama, Yoji Yamada   +3 more
doaj   +1 more source

Variables influencing the frictional behaviour of in vivo human skin [PDF]

, 2013
In the past decades, skin friction research has focused on determining which variables are important to affect the frictional behaviour of in vivo human skin. Until now, there is still limited knowledge on these variables.
Heide, E. van der, Masen, M.A., Veijgen, N.K.   +2 more
core   +4 more sources

Study on the Negative Skin Friction on Bridge Pile Foundations Induced by Backfilling in Karst Areas

Buildings
The load transfer mechanism of piles in karst cavity areas was investigated through field tests, and an orthogonal test was carried out to establish a calculation method for negative skin friction induced by backfilling.
Huiyun Chen, Zhongju Feng, Xiaodong Wei, Ya Li   +3 more
doaj   +1 more source

Analytical solution for negative skin friction of single pile based on effective stress method

Shuiwen dizhi gongcheng dizhi
The calculation method for negative skin friction of a single pile has not been unified yet. To improve the design and calculation level of the single pile under vertical load considering negative skin friction, the threshold limit value of pile skin ...
Lu MA, Kun WANG, Siyuan TAO, Xiying CHENG, Shan CHANG, Xuemin ZHU   +5 more
doaj   +1 more source

An experimental study of geometrical effects on the drag and flow field of two bluff bodies separated by a gap [PDF]

, 1985
This paper describes an experimental investigation of the shielding effects of various disks placed coaxially upstream of an axisymmetric, flat-faced cylinder.
Koenig, Keith, Roshko, Anatol
core   +1 more source

Controlling the onset of turbulence by streamwise traveling waves. Part 2. Direct numerical simulations

, 2010
This work builds on and confirms the theoretical findings of Part 1 of this paper, Moarref & Jovanovi\'c (2010). We use direct numerical simulations of the Navier-Stokes equations to assess the efficacy of blowing and suction in the form of streamwise ...
BINH K. LIEU, Currie, Jovanović, MIHAILO R. JOVANOVIĆ, RASHAD MOARREF   +4 more
core   +1 more source