Numerical Simulation Study on the Submerged Pipe Depth of Air Bubbles Breakwater

2013 ◽  
Vol 353-356 ◽  
pp. 2732-2735
Author(s):  
Cheng Xing Zhang

The numerical simulation of air bubbles breakwater was presented in this paper. The two-phase fluid of water and air was assumed as a variable density fluid. The numerical models were developed by FLUENT in order to explore the air amount scale in the system of air bubbles breakwater . The impact of submerged pipe depth on the wave dissipating performance of air bubble breakwater was obtained, which illuminated that The submerged pipe depth D is deeper, the wave dissipating performance of air bubbles breakwater is better. Furthermore, the effect of air amount and the incident wave periods on the performance of the air bubbles breakwater was analyzed.

2014 ◽  
Vol 501-504 ◽  
pp. 2112-2115
Author(s):  
Cheng Xing Zhang

The numerical simulation of air bubbles breakwater was presented in this paper. The two-phase fluid of water and air was assumed as a variable density fluid. The numerical models were developed by FLUENT in order to explore the air amount scale in the system of air bubbles breakwater . The impact of double air discharged pipes on the wave dissipating performance of air bubble breakwater was obtained, which illuminated that under the condition of equal total air amount of Qp, the wave dissipating performance of air bubbles breakwater with double air discharged pipes breakwater may not be improved in comparison with the air bubbles breakwater with single air discharged pipe.


2012 ◽  
Vol 170-173 ◽  
pp. 2298-2302
Author(s):  
Cheng Xing Zhang ◽  
Lu Bai

The numerical simulation of air bubbles breakwater was presented in this paper. The two-phase fluid of water and air was assumed as a variable density fluid. The numerical models were developed by FLUENT in order to explore the air amount scale in the system of air bubbles breakwater . The continuity equation, the Reynolds average equations and the standard k-e equations were selected as the governing equations and the interface of water and air was traced by the VOF method, the additional mass source was added to the continuity equation by The Macro of UDF. The relationship between the air amount scale and the length scale was obtained, which illuminated that the air amount scale of air bubbles breakwater agrees to the gravity similarity law. Furthermore, the effect of air amount and the incident wave periods on the performance of the air bubbles breakwater was analyzed.


2021 ◽  
pp. 116948
Author(s):  
Wei Zhang ◽  
Qihong Feng ◽  
Zhehui Jin ◽  
Xiangdong Xing ◽  
Sen Wang

2017 ◽  
Vol 11 (2) ◽  
pp. 289-295
Author(s):  
V. I. Vasil’ev ◽  
M. V. Vasil’eva ◽  
Yu. M. Laevsky ◽  
T. S. Timofeeva

2014 ◽  
Vol 4 (3) ◽  
pp. 233-243 ◽  
Author(s):  
José M. Carcione ◽  
Stefano Picotti ◽  
Juan E. Santos ◽  
Ayman Qadrouh ◽  
Hashim S. Almalki

2015 ◽  
Vol 791 ◽  
pp. 217-223 ◽  
Author(s):  
Grzegorz Górski ◽  
Grzegorz Litak ◽  
Romuald Mosdorf ◽  
Andrzej Rysak

By changing a air flow rate of the two-phase (air-water) flow through a minichannel weidentified aggregation and partitioning of air bubbles and slugs of different sizes and air bubble arrangement into periodic patterns. The identification of these spatio-temporal behaviour was doneby digital camera. Simultaneously, we provide the detailed studies of these phenomena by using thecorresponding sequences of light transmission time series recorded by a laser-phototransistor sensor.To distinguish the instabilities in air slags and their breakups and aggregations we used the Fourierand multiscale entropy analysis.


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