A Numerical study of resistance in a rough walled channel flow where the ratio of roughness length scale to the depth of flow varies over a wide range [PDF]
, 2009 Numerical calculations were performed over a variety of two-dimensional rib roughness configurations in which the ratio of flow depth to roughness height was varied from 1.1 to 40.
Senior, A K
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Numerical investigation of laminar flow in micro-tubes with designed surface roughness [PDF]
, 2011 This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Elsayed, AM +4 more
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A fibre optic sensor for the measurement of surface roughness and displacement using artificial neural networks [PDF]
, 1997 This paper presents a fiber optic sensor system, artificial neural networks (fast back-propagation) are employed for the data processing. The use of the neural networks makes it possible for the sensor to be used both for surface roughness and ...
Butler, C, Lu, Y, Zhang, K, Yang, QP
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Relationship between soil surface roughness and hydraulic roughness coefficient on sloping farmland
Water Science and Engineering, 2012 The soil surface roughness and hydraulic roughness coefficient are important hydraulic resistance characteristic parameters. Precisely estimating the hydraulic roughness coefficient is important to understanding mechanisms of overland flow.
Zi-cheng Zheng, Shu-qin He, Fa-qi Wu
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Artificial Surface Roughness Deformation in the Starved EHL Contacts
Tribology Online, 2018 Starved elastohydrodynamically lubricated contact is described as deviation from fully flooded contact due to insufficient lubricant supply. This insufficiency causes thinner lubricant film compared to fully flooded regime.
Kostal David +3 more
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A review on effect of various artificial roughness on heat transfer enhancement in a channel flow
Journal of Thermal Engineering, 2021 Heat transfer improvement plays a vital role in several industrial applications as well as in the transportation sector such as gas turbines, heat exchangers, various cooling devices, and combustor liners.
Sudharani PANDA, Rakesh KUMAR
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Dynamic evolution of interface roughness during friction and wear processes [PDF]
, 2014 Dynamic evolution of surface roughness and influence of initial roughness (Sa=0.282 to 6.73 µm) during friction and wear processes has been analyzed experimentally.
Bigerelle, M. +19 more
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A study of roughness in turbulent hypersonic boundary-layers [PDF]
, 1993 The influence of large scale regular roughness on a Mach 5 turbulent boundary layer and a compression corner was investigated on axisymmetric wind tunnel models.
Babinsky, Holger
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Use of artificial roughness to enhance heat transfer in solar air heaters – a review
Journal of Energy in Southern Africa, 2017 Improvement in the thermo hydraulic performance of a solar air heater can be done by enhancing the heat transfer. In general, heat transfer enhancement techniques are divided into two groups: active and passive techniques.
Thakur Sanjay Kumar +3 more
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Evaluation of The Effect of Immersion Periods in The Artificial Saliva on The Surface Roughness of Three Types of orthodontic Arch Wires [PDF]
Al-Rafidain Dental Journal, 2008 Aims: To evaluate the effect of immersion periods in artificial saliva on the surface roughness of an arch wire. Materials and Methods: The roughness of three types of orthodontic arch wires: stainless steel (SS), titanium molybdenum alloy (TMA) and ...
Khudair A Al–Jumaili, Zaid S Tawfek
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