The loss of stability of laminar flow in open channel and the mechanism of sand ripple formation

2002 ◽  
Vol 23 (3) ◽  
pp. 276-293 ◽  
Author(s):  
Bai Yu-chuan ◽  
Luo Ji-shen
Keyword(s):  
Laminar Flow ◽  
Open Channel ◽  
Loss Of Stability ◽  
Sand Ripple ◽  
Ripple Formation

Dispersion of Pollutants in Open-Channel Laminar Flow

1977 ◽  
pp. 221-262 ◽  
Author(s):  
H. P. Hsieh ◽  
Gi Yong Lee ◽  
William N. Gill
Keyword(s):  
Laminar Flow ◽  
Open Channel

scholarly journals LABORATORY STUDY ON TWO-DIMENSIONAL BEACH TRANSFORMATION DUE TO IRREGULAR WAVES

1986 ◽  
Vol 1 (20) ◽  
pp. 102 ◽  
Author(s):  
Nubuo Mimura ◽  
Yukinori Otsuka ◽  
Akira Watanabe
Keyword(s):  
Wave Train ◽  
Irregular Waves ◽  
Two Dimensional ◽  
Beach Profile ◽  
Irregular Wave ◽  
Sand Ripple ◽  
Ripple Formation ◽  
Sand Movement ◽  
Incident Waves ◽  
Profile Change

In the present study, effects of irregular waves on two-dimensional beach transformation and related phenomena were investigated through a series of laboratory experiments. Attempts were made to determine a representative wave of irregular wave trains which controlled individual phenomenon related to the two-dimensional beach profile change. It was found that the representative wave is different for each phenomenon. For the macroscopic beach profile change, it is the mean wave which represents whole incident waves. On the other hand, some of microscopic phenomena, such as initiation of sand movement and sand ripple formation, are controlled by larger waves in the wave train selectively, of which representative wave is the significant wave.

Modeling and Observations of Sand Ripple Formation and Evolution During TREX13

2017 ◽  
Vol 42 (2) ◽  
pp. 260-267 ◽  
Author(s):  
Allison Penko ◽  
Joseph Calantoni ◽  
Brian T. Hefner
Keyword(s):  
Sand Ripple ◽  
Ripple Formation ◽  
Formation And Evolution

WAVE DRIVEN SAND RIPPLE FORMATION AND EVOLUTION ON A MOUND

2019 ◽  
Author(s):  
SEOK-BONG LEE ◽  
MEAGAN WENGROVE ◽  
JULIA HOPKINS ◽  
IOANNA SAXONI ◽  
MATTHIEU A. DE SCHIPPER
Keyword(s):  
Sand Ripple ◽  
Ripple Formation ◽  
Formation And Evolution

Numerical Simulation of Sand Ripple Formation with Periodically Uniform and Non-Uniform Stream Field

2008 ◽  
Vol 33-37 ◽  
pp. 1063-1068 ◽  
Author(s):  
Abudoukelimu Abudoureheman ◽  
Xamxinur Abdikerem ◽  
Mamtimin Gheni
Keyword(s):  
Numerical Simulation ◽  
Flow Field ◽  
Stream Flow ◽  
Simulation Models ◽  
Forming Process ◽  
Sand Ripple ◽  
Ripple Formation ◽  
Sand Flow ◽  
Moving Process ◽  
Uniform Stream

In this study, for the numerical simulation of the sand ripple’s forming process which caused by the sand flow, the simulation models based on the fluid dynamics and the sand flow field by the wind are analyzed. Due to sand field’s characteristics is very complex, the establishing process of stream flow field constitutive equations analyzed at first, and then the implication relations and independency between stream flow field and the sand flow field analyzed. Finally, the sand ripple forming and moving process simulated in uniform and non-uniform stream flow field.

Laminar flow of Non-Newtonian thickened tailings slurry through an open channel

2015 ◽  
Vol 93 (11) ◽  
pp. 1922-1928 ◽  
Author(s):  
Sadegh Javadi ◽  
Rahul Gupta ◽  
Sati Bhattacharya ◽  
Paul Slatter
Keyword(s):  
Laminar Flow ◽  
Open Channel ◽  
Thickened Tailings
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