Developing a vertical quasi-two-dimensional surface-subsurface flow model using an approximation for hydraulic gradient

Prediction of Sediment Transport Capacity in Rivers Using Quasi Two-Dimensional Mathematical Model

Sediment rating curve is an essential factor for many river engineering subjects and computations such as dredging, design of storage dams, river intakes design and sand mining management. Although, this curve is established using simultaneous measurement of flow and sediment transport discharges, however, due to lack of reliable data during flood events, it has limited reliability in flood con...

Hydraulic conductivity measurment for subsurface drainage system

Shell model for quasi-two-dimensional turbulence.

We discuss the possibility to introduce geometrical constraints in shell models of turbulence in order to mimic the turbulent dynamics that takes place in fluid layers with large aspect ratio. By using a scale-dependent set of coupling parameters, we are able to resolve both scales larger and smaller than a geometrical dimension of the flow. The proposed model is able to resolve with high accur...

Regional Quasi-Three-Dimensional Unsaturated-Saturated Water Flow Model Based on a Vertical-Horizontal Splitting Concept

Yan Zhu 1, Liangsheng Shi 1, Jingwei Wu 1, Ming Ye 2, Lihong Cui 1 and Jinzhong Yang 1,* 1 State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China; [email protected] (Y.Z.); [email protected] (L.S.); [email protected] (J.W.); [email protected] (L.C.) 2 Department of Scientific Computing, Florida State University, Tall...

A New Quasi-two Dimensional HEMT Model

A Quasi-two Dimensional HEMT model is presented which for the first time describes accurately the I-V characteristics close to device pinch-off and at high drain current. The model uses a new analytical model for describing the injection of charge into the buffer material. This analytical description works in conjunction with an asymptotic boundary condition in the charge control solution to dr...