2010 Fiscal Year Final Research Report
Refinement of numerical model on flows and bed deformation around river hydraulic structure and its verification
| Project/Area Number |
20760327
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Hydraulic engineering
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
ONDA Shinichiro Kyoto University, 工学研究科, 助教 (50402970)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | 河川構造物 / 局所流 / 局所洗掘 / 数値シミュレーション |
|---|
| Research Abstract |
Around river hydraulic structures such as a spur dike and a square cylinder, complex three-dimensional flow structures are predominant. Therefore, a simple depth averaged flow model is not applicable to such cases. In this study, a modeling of three-dimensional flow structures is carried out theoretically, and a depth averaged flow model is refined by incorporating the effects of secondary currents, flow acceleration/deceleration and vertical acceleration. The three-dimensional numerical simulation is also conducted to compare the numerical results. Applicability of the numerical model with equilibrium and non-equilibrium sediment transport models to the local scouring around a spur dike and river channel processes is examined.
|
Research Products
(8 results)
