Scale Correction for Roughness Effect
نویسندگان
چکیده
منابع مشابه
Mechanisms for Enhanced Hydrophobicity by Atomic-Scale Roughness
It is well known that the close-packed CF3-terminated solid surface is among the most hydrophobic surfaces in nature. Molecular dynamic simulations show that this hydrophobicity can be further enhanced by the atomic-scale roughness. Consequently, the hydrophobic gap width is enlarged to about 0.6 nm for roughened CF3-terminated solid surfaces. In contrast, the hydrophobic gap width does not inc...
متن کاملThe Surface Roughness Wakefield Effect
In the Linear Colliders FEL projects ultra short bunches are foreseen to be used. In addition to usual wakefields, coming from irregularities in the chamber, these bunches excite fields in transporting lines and undulators due to the surface roughness. This effect can be large for the extruded tubes, usually used in accelerators. Based on computer results it is shown, that the roughness wakefie...
متن کاملMicro/nano scale surface roughness tailoring and its effect on microfluidic flow
The rapid growth of applications of lab-on-chip and bio-MEMES (Micro-electromechanical systems), arranging from cell culture and drug delivery to the microscale energy harvesting, microelectronics cooling, requires an understanding of microfluidic flow. Surface roughness, even at micro and nano scale, both deterministic and random, is considered an important parameter to affect fluid flow at th...
متن کاملEffect of Surface Roughness on Small-Scale Velocity and Scalar Characteristics in a Turbulent Channel Flow
Using DNS data in a turbulent channel flow, the paper examines the effect of the surface geometry on the vorticity and (passive) scalar gradient vectors at a relatively small Reynolds number and for a molecular Prandtl number of 1. While a strong correlation between these two vector fields is expected close to the wall when the latter is smooth, significant changes occur when the surface is mod...
متن کاملEffect of roughness on Radiation Characteristic of Reflector Antenna Based on Multi-scale Modelling
Firstly, the wavelet analysis was used as the filter tool to separate the different scale roughness from the reflector surface testing data, and a mathematical model of the multi-scale roughness was presented to investigate its impact on the radiation characteristic of the reflector antenna. Based on the roughness model, a formulation of density of the far-field was deduced and the definable mo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Zosen Kiokai
سال: 1965
ISSN: 1884-2062
DOI: 10.2534/jjasnaoe1952.1965.118_66