[PDF] Top 20 Estimating aerodynamic roughness over complex surface terrain
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Estimating aerodynamic roughness over complex surface terrain
... the roughness element den- sity, rather than con fi guration, had the greatest in fl uence on shear stress ...discrete roughness elements such as vegeta- tion, but the performance of sediment entrainment ... See full document
14
Research on forest terrain roughness as a source of dynamic action on the vehicle
... of terrain conditions is very complex and its description is approached from different perspectives and with different ...the terrain-vehicle approach was taken as the ...the surface ... See full document
7
Comparison of MODIS and SWAT evapotranspiration over a complex terrain at different spatial scales
... estimation over various climates and regions (Allen et ...for estimating the parameters of the equation are significantly different be- tween ...the aerodynamic resistance, while the MOD16 Penman– ... See full document
20
Study of Parabolic Equation Method for Millimeter-Wave Attenuation in Complex Meteorological Environments
... for estimating propagation characteristics of millimeter wave, which takes into account of attenuation caused by complex meteorological environment, is ...for estimating propagation attenuation of ... See full document
9
Computational Fluid Dynamics (CFD) Approach to Predict an Actual Wind Speed over Complex Terrain
... flow over complex terrain with high accuracy while avoiding numerical instability, the present study employs ...the surface roughness have been taken into consideration by ... See full document
14
Calibrating mars orbiter laser altimeter pulse widths at mars science laboratory candidate landing sites
... of surface roughness allow quantitative comparisons between planetary ...occurring surface processes, and develop a more complete analysis of candidate landing and roving ...map surface ... See full document
11
Comparison of OpenFOAM and EllipSys3D for neutral atmospheric flow over complex terrain
... sand roughness length wall model and the atmospheric roughness length wall-function approach could be made di- ...the surface layer, crucial for appropriate boundary layer description in the ABL ... See full document
16
GPU-ACCELERATED MODELING OF MICROSCALE ATMOSPHERIC FLOWS OVER COMPLEX TERRAIN
... account surface roughness or fluxes of heat and moisture at the ...the surface. Correct specification of stresses at the surface is critical because any misprediction can lead to erroneous ... See full document
88
Description and Modeling of the Additive Manufacturing Technology for Aerodynamic Coefficients Measurement
... with complex shapes without geometric restriction under more comfortable working ...on surface chemistry, thermal energy, and a layer manufacturing process ...the surface roughness of the FDM ... See full document
9
Numerical evaluation of aerodynamic roughness of the built environment and complex terrain
... Several building codes and standards incorporate the e ff ect of topography on wind speed using simplified models of isolated two dimensional hills, escarpments and valleys. Design of struc- tures for wind loads requires ... See full document
442
Modelling Canopy Flows over Complex Terrain
... lines) plotted over the height contours (at 10m intervals). Also plotted are wind direction arrows. Results are shown for easterly (a, c) and westerly (b, d) winds. Subfigures a), b) are with the explicit canopy ... See full document
42
Restoring mass conservation to shallow ice flow models over complex terrain
... m > 0, or through inflow from the cell (k −1, l). Such a situ- ation is possible in Plummer and Philips’ scheme. After time t i +2 , we can therefore return to the same situation as time t i , with a thin ice cover in ... See full document
12
Copula based statistical refinement of precipitation in RCM simulations over complex terrain
... In literature the fact that positive pairs are usually non- consecutive has often been used to justify the assumption of iid behaviour (e.g. Villarini et al., 2008), mainly neglecting serial autocorrelation. For the ... See full document
19
Comparison of RANS and LES in the Prediction of Airflow Field over Steep Complex Terrain
... The present study compared the prediction accuracy of the three CFD soft- ware packages for simulating airflow around a three-dimensional, isolated hill with a steep slope: 1) WindSim (turbulence model: RNG k - ε RANS), ... See full document
22
Quantification of basal friction for technical and silvicultural glide-snow avalanche mitigation measures
... and terrain. We were able to define three roughness categories that have different characteristic vege- tation and terrain ...smooth terrain with long grass has the least roughness, and ... See full document
11
Machinability of Copper Sulfide Dispersed Lead Free Bronze
... The microstructure of the specimens was characterized using an electron-probe microanalyzer (EPMA). Machina- bility was estimated from the viewpoints of cutting force, chip disposability and finished surface ... See full document
6
Hourly probabilistic snow forecasts over complex terrain: a hybrid ensemble postprocessing approach
... The TAWES network also provides automated precipi- tation measurements at a 10 min resolution. However, the length of historical records is much shorter compared to the time series provided by EHYD data set. Furthermore, ... See full document
22
Surface modification of polytetrafluoroethylene (PTFE) with Vacuum UV radiation from helium microwave plasma to enhance the adhesion of sputtered copper
... The surface roughening in this study is oxygen and % roughness, the over PTFE film oxygen-containing plasma with/without on XPS Even of surface contact angle was 02 flowing with surface [r] ... See full document
56
Solar Air Heater with W Shaped Roughness on Absorber Plate
... The flat plate solar collectors are mostly used for many heating applications. Solar air heater is a flat plate collecting device, which stores energy in the form of circulation of hot air over absorber plate. The ... See full document
5
Assessment of small scale variability of rainfall and multi satellite precipitation estimates using measurements from a dense rain gauge network in Southeast India
... At present, only a few dense research gauge networks are operational worldwide. Moreover, the gauge locations in op- erational networks are mostly confined to well-developed and easily accessible locations. This leaves ... See full document
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