Numerical Study of the Dynamics and Structure of a Partial Dam-Break Flow Using the VOF Method

2021 ◽  
Author(s):  
Alireza Khoshkonesh ◽  
Blaise Nsom ◽  
Farhad Bahmanpouri ◽  
Fariba Ahmadi Dehrashid ◽  
Atefeh Adeli
Keyword(s):  
Numerical Study ◽  
Vof Method ◽  
Dam Break ◽  
Dam Break Flow

scholarly journals Numerical Study of 2D and 3D Separation Phenomena in the Dam-Break Flow Interacting with a Triangular Obstacle

2016 ◽  
Vol 60 (3) ◽  
pp. 159-166 ◽  
Author(s):  
Alexander Khrabry ◽  
◽  
Evgueni Smirnov ◽  
Dmitry Zaytsev ◽  
Valery Goryachev ◽  
...  
Keyword(s):  
Numerical Study ◽  
Dam Break ◽  
Dam Break Flow ◽  
2D And 3D

A NUMERICAL STUDY OF DAM-BREAK FLOW AND SEDIMENT TRANSPORT FROM A QUAKE LAKE

2011 ◽  
Vol 05 (05) ◽  
pp. 401-428 ◽  
Author(s):  
PENGZHI LIN ◽  
YINNA WU ◽  
JUNLI BAI ◽  
QUANHONG LIN
Keyword(s):  
Sediment Transport ◽  
Shallow Water ◽  
High Speed ◽  
Numerical Study ◽  
Shallow Water Equation ◽  
Equation Model ◽  
Dam Break ◽  
Bed Morphology ◽  
Dam Break Flow ◽  
Quake Lake

Dam-break flows are simulated numerically by a two-dimensional shallow-water-equation model that combines a hydrodynamic module and a sediment transport module. The model is verified by available analytical solutions and experimental data. It is demonstrated that the model is a reliable tool for the simulation of various transient shallow water flows and the associated sediment transport and bed morphology on complex topography. The validated model is then applied to investigate the potential dam-break flows from Tangjiashan Quake Lake resulting from Wenchuan Earthquake in 2008. The dam-break flow evolution is simulated by using the model in order to provide the flooding patterns (e.g., arrival time and flood height) downstream. Furthermore, the sediment transport and bed morphology simulation is performed locally to study the bed variation under the high-speed dam-break flow.

Numerical study of dam-break fluid flow using volume of fluid (VOF) methods for different angles of inclined planes

SIMULATION ◽  
2021 ◽  
pp. 003754972110084
Author(s):  
Alibek Issakhov ◽  
Yeldos Zhandaulet
Keyword(s):  
Pressure Distribution ◽  
Numerical Study ◽  
Computational Simulation ◽  
Measurement Data ◽  
Dam Break ◽  
Maximum Pressure ◽  
Dam Break Flow ◽  
New Form ◽  
Inclined Angle ◽  
Inclined Planes

In this paper, the effects of water on obstacles in dam-break flow for different angles of the inclined planes have been numerically examined. The presented computational data are compared with data from the experiment and computational simulation data of other authors. Good agreements between the obtained simulation results and measurement data demonstrate the satisfactory performance of the mathematical model and the numerical algorithm when reproducing a dam-break flow. Additionally, various problems were also considered: the effect of pressure distribution on the dam walls for different angles of the inclined plane. It was found that pressure distribution on the wall when the inclined angle [Formula: see text] = 15° was almost two times more than without inclination. To reduce the shock pressure value a new form of obstacle was used. With a new form of obstacle, the maximum pressure value on the dam wall decreased more than three times.

Numerical study on effects of building groups on dam-break flow in urban areas

2012 ◽  
Vol 6 (2) ◽  
pp. 91-99 ◽  
Author(s):  
Woochang Jeong ◽  
Jae-Seon Yoon ◽  
Yong-Sik Cho
Keyword(s):  
Urban Areas ◽  
Numerical Study ◽  
Dam Break ◽  
Dam Break Flow
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