roughness


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roughness

[′rəf·nəs]
(fluid mechanics)
Distance from peaks to valleys in pipe-wall irregularities; used to modify Reynolds number calculations for fluid flow through pipes.
References in periodicals archive ?
Roughness is varied in the same range as of the first interface (namely; 0%, 0.
The purpose of this study was to compare mini implant specimens in terms of the surface chemistry, morphology and roughness.
3Z] to study the roughness of internally coated pipes used in the petroleum industry.
The conclusion that can be drawn from this simple comparison is that, in ensemble singing or instrument playing, close harmony or dissonance is perceived to contain more roughness and more pitch uncertainty at low pitches than at high pitches.
Mean roughness is defined as absolute values arithmetic mean of removal ordered (yi), of roughness profile points in relation to mean line, within measurement pathway (lm).
However, if a microstrip circuit is fabricated on circuit material with rolled copper, with a typical surface roughness of only 0.
Little work has been reported incorporating the AISI 1045 steel for electric discharge machining using Discharge current, Pulse OFF time, Pulse ON time and Gap voltage as input variables to evaluate the surface roughness using RSM.
A series of turning tests are conducted to assess the effect of turning parameters on surface roughness and tool wear in turning of super duplex stainless steel.
At a low sliding speed and thus a boundary lubrication, the COF increases, instead of decreases, when the PEO coating surface is polished from surface roughness of [R.
The aim of this article is to compare about 100 roughness parameters to make the link with gloss measurements and select the most relevant one by using original statistical techniques.
Surface roughness is a key factor of surface quality, since it assumes an essential effect on wear resistance, ductility, tensile, and fatigue strength for machined parts.