roughness effect
Bed roughness effect on flow field in rectangular shallow reservoir
... EDP SCIENCES SA Description The sedimentation by suspended sediments in the reservoir is a complex phenomenon operates. Actually, some solutions exist to control or to reduce reservoir sedimentation but, generally, they ...
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Roughness effect on the Neumann boundary condition
... We study the effect of a periodic roughness on a Neumann boundary condition. We show that, as in the case of a Dirichlet boundary condi- tion, it is possible to approach this condition by a more complex law ...
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Numerical modelling of surface roughness effect on the fatigue behavior of Ti-6Al-4V obtained by additive manufacturing
... (surface roughness, porosity, residual stresses) which significantly decrease the High Cycle Fatigue (HCF) ...surface roughness by machining is very costly and not always possible, espe- cially for parts ...
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Multi-scale analysis of the roughness effect on lubricated rough contact
... Renault s.a.s, Direction de l’Ingénierie Mécanique, 67 rue des bons raisins, 92500 Rueil Malmaison, France Abstract Determining friction is as equally essential as determining the film thickness in the lubricated ...
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Multi-scale analysis of the roughness effect on lubricated rough contact
... Renault s.a.s, Direction de l’Ingénierie Mécanique, 67 rue des bons raisins, 92500 Rueil Malmaison, France Abstract Determining friction is as equally essential as determining the film thickness in the lubricated ...
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Effect of surface roughness on the anomalous Hall effect in Fe thin films
... surface roughness effect on the electrical 149 transport properties, we measured the temperature-dependent 150 longitudinal resistivity of the samples at zero magnetic field 151 in the temperature range of ...
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Defining the roughness sublayer and its turbulent statistics
... ‘‘direct effect’’ should also imply that spatial averaging is not necessary, rendering the two views in principal equivalent—if spatial inhomogeneity is used as the ...the roughness sublayer is indeed ...
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Impact of the surface roughness on the electrical capacitance
... In the model and for the simulation, the impregnation of the dielectric material is maximal. In this case, the surface contact between the electrode and the dielectric material (or surface used by the dielectric ...
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MHz Ultrasound Induced Roughness of Fluid Interfaces
... SURFACE ROUGHNESS We measured the p-polarized light reflected by the air-water and heptane-water interfaces as a function of the incidence angle varied around the Brewster angle B , at which the reflected ...
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Multi-scale roughness transfer in cold metal rolling
... the roughness exponent estimation. On the other hand the roughness amplitude can be markedly enhanced at a large scale by the disorientation ...the roughness amplitude: (A 储 ...
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Supporting Production from a Single Surface Roughness Profile
... surface roughness of hard finish turned ...linear roughness profile that crosses the helical tool trace multiple times contains “snapshots” in time of the state of the ...a roughness profile, whereas ...
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Estimating Local Beckmann Roughness for Complex BSDFs
... Beckmann roughness) at all interac- tions along the path in order to determine an optimal mutation step ...Beckmann roughness, however, can be a bad fit for complex measured materials (such as [Matusik et ...
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Roughness of oxide glass subcritical fracture surfaces
... 4 proposed between the characteristic scales of the material's heterogeneity and the amplitude of the surface roughness. These kinds of investigations are very important to understand both the deep nature of the ...
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Spatial modulations of kinetic energy in the roughness sublayer
... The trade-off on the resolution of particle images impacts the attainable quality of SPIV fields, though only the smallest scales of the spectrum are significantly impacted. Image pre-processing was required (background ...
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Roughness of sandstone fracture surfaces: Profilometry and shadow length investigations
... a roughness exponent, we encounter the same difficulties as for fitting data corresponding to sample ...the roughness exponent can be reliably deter- mined from the variation of log(N (δ)) with logδ; its ...
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Picometer-scale surface roughness measurements inside hollow glass fibres
... the roughness of hollow glass fibres by use of immersion objectives and index-matching ...sub-nanometer roughness, and the roughness power spectrum measured in the range [5 · 10 − 3 µm − 1 − 10 − 1 ...
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Influence of roughness in contact fatigue : role of running-in
... Paramètre de Rugosité CTE_PC CTE_T2 SM F3 F1 LANDA_A LANDA_Q LAC_AIRE AR_COR AR SAR_COR SAR LAC_EXPE ORDRE G F2 F4 DIMFREQ WAR WAR_COR MR2 DELTA_A RWZ MR1 SK RP_3 GAMMA R_CNOMO A2 DELTA_[r] ...
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Velocity distribution in open channel flow with spatially distributed roughness
... distributed roughness, but also to predict erosion process or aquatic ...of roughness or cross section ...of roughness and complex ...the roughness height ...
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Two different techniques for the evaluation of concrete surface roughness
... A profile can be divided into several scales of rough- ness. Each scale can be dissociated from the prece- dent by carrying out a decomposition process. Fig. 1 indicates the three principal scales of roughness for ...
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Surface roughness prediction in milling based on tool displacements
... A method based on tool displacements measurements in milling including tool vibrations was proposed by Arizmendi in 2009 [ 14 ]. Displacements are acquired at the tool shank using two eddy current displacement sensors. ...
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