scholarly journals INVESTIGATION OF DYNAMIC INTERACTION OF HIGHLY CONCENTRATED PARTICLES AND FLOW WITH A NUMERICAL MOVABLE-BED CHANNEL USING RESULTS OF A FLUME EXPERIMENT ON DEBRIS FLOW

2016 ◽  
Vol 72 (4) ◽  
pp. I_859-I_864 ◽  
Author(s):  
Tomoo FUKUDA ◽  
Shoji FUKUOKA
Keyword(s):  
Debris Flow ◽  
Dynamic Interaction ◽  
Flume Experiment ◽  
Movable Bed

scholarly journals Experimental Study of the Debris Flow Slurry Impact and Distribution

2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Haixin Zhao ◽  
Lingkan Yao ◽  
Yong You ◽  
Baoliang Wang ◽  
Cong Zhang
Keyword(s):  
Debris Flow ◽  
Debris Flows ◽  
Impact Force ◽  
Influence Factors ◽  
Flume Experiment ◽  
Middle Point ◽  
Laboratory Flume ◽  
Critical Issues ◽  
Maximum Impact Force ◽  
The Impact

In this study, we present a new method to calculate debris flow slurry impact and its distribution, which are critical issues for designing countermeasures against debris flows. There is no unified formula at present, and we usually design preventive engineering according to the uniform distribution of the maximum impact force. For conducting a laboratory flume experiment, we arrange sensors at different positions on a dam and analyze the differences on debris flow slurry impact against various densities, channel slopes, and dam front angles. Results show that the force of debris flow on the dam distributes unevenly, and that the impact force is large in the middle and decreases gradually to the both sides. We systematically analyze the influence factors for the calculation of the maximum impact force in the middle point and give the quantitative law of decay from the middle to the sides. We propose a method to calculate the distribution of the debris flow impact force on the whole section and provide a case to illustrate this method.

Small Flume Experiment on the Influence of Inflow Angle and Stream Gradient on Landslide-Triggered Debris Flow Sediment Movement

2017 ◽  
pp. 517-523 ◽  
Author(s):  
Hefryan Sukma Kharismalatri ◽  
Yoshiharu Ishikawa ◽  
Takashi Gomi ◽  
Katsushige Shiraki ◽  
Taeko Wakahara
Keyword(s):  
Debris Flow ◽  
Flume Experiment ◽  
Sediment Movement

Mechanism of downcutting erosion of debris flow over a movable bed

2015 ◽  
Vol 12 (1) ◽  
pp. 243-250 ◽  
Author(s):  
Hua-li Pan ◽  
Jiang-cheng Huang ◽  
Guo-qiang Ou
Keyword(s):  
Debris Flow ◽  
Movable Bed

scholarly journals Superelevation Calculation of Debris Flow Climbing Ascending Slopes

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
HaiXin Zhao ◽  
Yong You ◽  
JinFeng Liu ◽  
LingKan Yao
Keyword(s):  
Root Mean Square Error ◽  
Debris Flow ◽  
Flow Velocity ◽  
Mean Square Error ◽  
Calculation Method ◽  
Flume Experiment ◽  
Mean Square ◽  
Characteristic Parameters ◽  
Bingham Model ◽  
Protection Engineering

We present a new method for calculating the superelevation of debris flow when it encounters obstacles in the process of flowing. Our calculation method is based on the Bingham Model for debris flow determination and considers the vertical difference of debris flow velocity and characteristic parameters of debris flow on a hypothetical basis. Moreover, we conducted an indoor flume experiment to verify the accuracy and reasonability of our calculation method. The experimental results showed that our method is able to accurately calculate the superelevation of debris flow with a root-mean-square error (16%). Furthermore, we provide an in-depth example of how our calculation method can be employed. Ultimately, we conclusively prove that our calculation method can be used for the superelevation calculation of debris flow climbing ascending slopes. Finally, we provide more exact parameters for debris flow protection engineering.

Dynamic Interaction between the Coolant Flow and Fuel Assembly

Vestnik MEI ◽  
2019 ◽  
Vol 5 ◽  
pp. 11-23
Author(s):  
Konstantin N. Proskuryakov ◽  
Keyword(s):  
Fuel Assembly ◽  
Dynamic Interaction ◽  
Coolant Flow
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