Quasi-3D Solver of Meandering River Flows by CIP-Soroban Scheme in Cylindrical Coordinates with Support of Boundary Fitted Coordinate Method

2009 ◽  
pp. 951-956
Author(s):  
Keisuke Yoshida ◽  
Tadaharu Ishikawa
Keyword(s):  
Cylindrical Coordinates ◽  
River Flows ◽  
Coordinate Method ◽  
Meandering River

scholarly journals Helmholtz and Diffusion Equations Associated with Local Fractional Derivative Operators Involving the Cantorian and Cantor-Type Cylindrical Coordinates

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Ya-Juan Hao ◽  
H. M. Srivastava ◽  
Hossein Jafari ◽  
Xiao-Jun Yang
Keyword(s):  
Fractional Derivative ◽  
Cantor Sets ◽  
Diffusion Equations ◽  
Cylindrical Coordinates ◽  
Coordinate Method ◽  
Local Fractional Derivative ◽  
Cylindrical Coordinate ◽  
Fractional Differential ◽  
Fractional Derivative Operators ◽  
And Diffusion

The main object of this paper is to investigate the Helmholtz and diffusion equations on the Cantor sets involving local fractional derivative operators. The Cantor-type cylindrical-coordinate method is applied to handle the corresponding local fractional differential equations. Two illustrative examples for the Helmholtz and diffusion equations on the Cantor sets are shown by making use of the Cantorian and Cantor-type cylindrical coordinates.

scholarly journals Modeling of Flow Around Vegetated Meandering River Reaches

2018 ◽  
Vol 203 ◽  
pp. 07008
Author(s):  
Akihiko Nakayama ◽  
Huan Tao Goh ◽  
Zafarullah Nizamani
Keyword(s):  
Large Eddy Simulation ◽  
Flow Velocity ◽  
Secondary Flow ◽  
Calculation Method ◽  
Curved Channel ◽  
River Flows ◽  
Meandering River ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Artificial Vegetation

Models required in a large eddy simulation of natural river flows which are influenced by the complex bed geometry and the vegetation are proposed. First the model and the calculation method have been applied to a laboratory flow in a curved channel with artificial vegetation. The effects of vegetation on the secondary flow are confirmed to be reproduced correctly. The method is then used to simulate the flow around a real meandering river with vegetation along the banks and on the bars. The results appear reasonable and important characteristics around the bends such as varying flow velocity and the bed shear are also reproduced.

scholarly journals Effects of Riparian Vegetation on the Transport and Accumulation of Floating Objects in a Meandering River

2018 ◽  
Vol 65 ◽  
pp. 07003 ◽  
Author(s):  
Nakayama Akihiko ◽  
Huan Tao Goh ◽  
Seak Ni Chai
Keyword(s):  
Large Eddy Simulation ◽  
Riparian Vegetation ◽  
River Flows ◽  
Meandering River ◽  
Eddy Simulation ◽  
Solid Objects ◽  
Large Eddy ◽  
Floating Objects

In order to study and understand the characteristics of transport and depositions of floating objects in real rivers, Large Eddy Simulation (LES) method of real river flows with complex bathymetry, the riparian vegetation and the floating objects has been developed and applied to a meandering river in Perak, Malaysia. The movement and accumulation of floating objects are different for different sizes and the shapes of the objects. The vegetation that may exists on the bed and the banks also are seen to influence the positions where the objects are accumulated and deposited. The results can be used to control the increasing amount of solid objects washed into the rivers and to the ocean.

Ecological Implications of Verde River Flows

2008 ◽  
Author(s):  
Jeanmarie Haney ◽  
Dale Turner ◽  
Vashti Supplee
Keyword(s):  
River Flows ◽  
Ecological Implications ◽  
Verde River
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