scholarly journals SURFACE FLOW GENERATION MECHANISM INDUCED BY A BUBBLE PLUME

2021 ◽  
Author(s):  
Hassan Abdulmouti
Keyword(s):  
Surface Flow ◽  
Generation Mechanism ◽  
Bubble Plume ◽  
Flow Generation

scholarly journals WAVE-GENERATED FLOWS ON THE WATER SURFACE

2016 ◽  
Vol 42 ◽  
pp. 1660179
Author(s):  
MICHAEL SHATS ◽  
HORST PUNZMANN ◽  
NICOLAS FRANCOIS ◽  
HUA XIA
Keyword(s):  
Water Surface ◽  
Large Scale ◽  
Three Dimensional ◽  
Surface Flow ◽  
Theoretical Problem ◽  
Complex Flows ◽  
Localized Source ◽  
New Methods ◽  
Flow Generation ◽  
Surface Jets

Predicting trajectories of fluid parcels on the water surface perturbed by waves is a difficult mathematical and theoretical problem. It is even harder to model flows generated on the water surface due to complex three-dimensional wave fields, which commonly result from the modulation instability of planar waves. We have recently shown that quasi-standing, or Faraday, waves are capable of generating horizontal fluid motions on the water surface whose statistical properties are very close to those in two-dimensional turbulence. This occurs due to the generation of horizontal vortices. Here we show that progressing waves generated by a localized source are also capable of creating horizontal vortices. The interaction between such vortices can be controlled and used to create stationary surface flows of desired topology. These results offer new methods of surface flow generation, which allow engineering inward and outward surface jets, large-scale vortices and other complex flows. The new principles can be also be used to manipulate floaters on the water surface and to form well-controlled Lagrangian coherent structures on the surface. The resulting flows are localized in a narrow layer near the surface, whose thickness is less than one wavelength.

scholarly journals Measurement of Bubble Plume Generated Surface Flow Using PIV

2001 ◽  
Vol 21 (2) ◽  
pp. 31-37
Author(s):  
Hassan Abdulmouti ◽  
Yuichi Murai ◽  
Yasushi Ohno ◽  
Fujio Yamamoto
Keyword(s):  
Surface Flow ◽  
Bubble Plume

K-1443 Interaction between Bubble Plume Surface Flow and Interfacial Waves.

2001 ◽  
Vol II.01.1 (0) ◽  
pp. 289-290
Author(s):  
Yoshiaki RYONO ◽  
Yuichi MURAI ◽  
Fujio YAMAMOTO
Keyword(s):  
Surface Flow ◽  
Bubble Plume ◽  
Interfacial Waves

IDENTIFYING THE MOST SUITABLE AREAS FOR SURFACE FLOW WETLAND CONSTRUCTION IN LITHUANIA

2015 ◽  
Author(s):  
Antanas DUMBRAUSKAS ◽  
Nijolė BASTIENĖ ◽  
Petras PUNYS
Keyword(s):  
Constructed Wetlands ◽  
Ecological Status ◽  
Surface Flow ◽  
Gis Analysis ◽  
Proximity Analysis ◽  
Wetland Construction ◽  
The Mean ◽  
Two Phases ◽  
Terrain Features ◽  
Surface Flow Constructed Wetlands

GIS-based approach to find the suitable sites for surface flow constructed wetlands was employed for the Lithuanian river basins with low ecological status. According to the nature of the analysed criteria the flowchart consists of two phases. Criteria used include hydrographical network, soil properties, terrain features, land use, etc. Some of them have strictly defined values (constraints), and other ranges within certain limits (factors). Limited criteria were analysed using rejection principle and influencing factors using proximity analysis and overlay methods. Selecting the potential sites using standard GIS analysis tools there was estimated about 3286 sites for possible wetlands with the mean area of inflow basin about 4 km2 in the basins of water bodies at risk.

Sign in / Sign up

Export Citation Format

Share Document