A well-balanced compact high-order gas-kinetic scheme (GKS) on unstructured mesh is first developed for solving the shallow water equations with source terms. The distinguishable feature of finite volume GKS that based formulation, a time-accurate gas distribution function can be constructed, from which both fluxes and flow variables explicitly evaluated at cell interface. As result, besides up...

The rates of incision and aggradation in the channels Terek River basin (North Caucasus) for last 50–85 years were estimated at 18 gauging stations. stage–discharge method (annual low water stages same discharges) was applied. stability channel recorded on tectonically subsiding Tersko–Kuma Lowland. On Kabardian Plain, up to 14 mm a−1 registered. rapid (~32 a−1) occurs within antecedent valley ...

the effect of tillage (conventional and zero tillage), crop establishment (raised-bed and flat-bed), and weed management practices (herbicide alone and integrated approach) was studied on productivity, profitability, nutrient uptake and physico-chemical properties of soil in soybean–wheat cropping system, at new delhi during 2010–2012. sixteen treatment combinations consisting of four tillage a...

investigation of inter-storm variability of runoff and soil loss characteristics helps experts and decision makes better understanding of hydrological response. however, this important has been less considered in the world, especially developing countries. the present study was therefore planned to evaluate the effect of different rainfall intensities and slopes on inter-storm variability of co...

Analysis of the thermomechanical interactions of fusion blanket materials and physical elements, particularly those involving particle bed design concepts, have been performed. The results show that the stress caused by the high thermal expansion of the blanket particle bed material is not excessive enough to be of concern for the structural material. However, its magnitude could lead to cerami...

Stability of reinforced slopes is almost always carried out using limit equilibrium methods and controlled by the shear strengths of the slope materials and the extension force of reinforcements. According to limit equilibrium methods, the stability of slopes is assessed by dividing the whole failure wedge into several vertical elements. In order to determine the safety&#10factor of the reinfor...

This study investigates the distributions of velocity and Reynolds stress in an artificial pool-riffle sequence for two entrance slopes 5° 20° a laboratory compares results with similar gravel-bed river central Iran. Quadrant analysis is applied to find out contributions different events on turbulent flow structures. At slope 5°, distribution follows exponential trend without separation, but 20...

Previous studies showed that macrorough sidewalls increase the stability of step-pool sequences in steep narrow channels due to grain-sidewall interactions (i.e., jamming) and bed shear stress reduction sidewall friction. The main goal this study was quantify for six types using physical model tests. Experiments were conducted a tilting flume with initial slopes 4%–10% fixed rough beds without ...