scholarly journals HIGHLY ACCURATE ESTIMATION OF HYDROGRAPH OF FLOOD DISCHARGE AND WATER STORAGE IN RIVERS BY USING AN UNSTEADY TWO-DIMENSIONAL FLOW ANALYSIS BASED ON TEMPORAL CHANGE IN OBSERVED WATER SURFACE PROFILES

2004 ◽  
pp. 45-56 ◽  
Author(s):  
Shoji FUKUOKA ◽  
Akihide WATANABE ◽  
Toshihiko HARA ◽  
Masato AKIYAMA
Keyword(s):  
Water Surface ◽  
Temporal Change ◽  
Flow Analysis ◽  
Water Storage ◽  
Accurate Estimation ◽  
Two Dimensional ◽  
Dimensional Flow ◽  
Flood Discharge ◽  
Two Dimensional Flow ◽  
Surface Profiles

The Two-Dimensional Flow Analysis of Continuous Spiral Reamer Bionic Structure on the Basis of ANSYS

2011 ◽  
Vol 236-238 ◽  
pp. 1576-1580
Author(s):  
Bai Qing Zhang ◽  
Hua Zhu ◽  
Mei Ying Liu
Keyword(s):  
Fractal Structure ◽  
Flow Analysis ◽  
Two Dimensional ◽  
Ansys Software ◽  
Dimensional Flow ◽  
Shape Structure ◽  
Two Dimensional Flow ◽  
Bionic Structure ◽  
Clay Materials

In order to improve the stratification of clay materials in the spiral reamer, we use "bionics method" to modify the structure of the spiral reamer, namely, to add corrugated shape structure to the cutter and hub. Through the analysis of ANSYS software, it is found that corrugated fractal structure can both improve the stratification of clay materials, and increase the yield as well.

scholarly journals Two-Dimensional Flow Analysis in a Darrieus-Type Water Turbine with Arbitrary-Shaped Duct.

1996 ◽  
Vol 62 (598) ◽  
pp. 2144-2150
Author(s):  
Akinori FURUKAWA ◽  
Kazuki TAKENOUCHI ◽  
Preethisri Ananda GAJANAYAKE ◽  
Kusuo OKUMA
Keyword(s):  
Flow Analysis ◽  
Two Dimensional ◽  
Dimensional Flow ◽  
Two Dimensional Flow ◽  
Water Turbine ◽  
Type Water

Four-dimensional flow CMR

2018 ◽  
pp. 629-632
Author(s):  
Malenka Bissell
Keyword(s):  
Blood Flow ◽  
Cardiovascular Magnetic Resonance ◽  
Magnetic Resonance ◽  
Flow Analysis ◽  
Three Dimensional ◽  
Imaging Biomarkers ◽  
Two Dimensional ◽  
Dimensional Flow ◽  
Area Of Interest ◽  
Two Dimensional Flow

Four-dimensional flow cardiovascular magnetic resonance allows visualization and quantification of blood flow in three-dimensional images in the heart and main blood vessels. Image acquisition currently takes around 8–30 minutes, depending on the area of interest. While temporal resolution is reduced, compared to two-dimensional flow analysis, the main advantages include easy prescription of acquisition, three-dimensional visualization, calculation of Qp/Qs in the same dataset, retrospective plane placement, and quantification of novel advanced imaging biomarkers.

Instantaneous water surface and bed scour profiles using video image analysis

1998 ◽  
Vol 25 (4) ◽  
pp. 662-667 ◽  
Author(s):  
R Balachandar ◽  
J A Kells
Keyword(s):  
Image Analysis ◽  
Flow Field ◽  
Water Surface ◽  
Surface Profile ◽  
Steady Flows ◽  
Two Dimensional ◽  
Dimensional Flow ◽  
Two Dimensional Flow ◽  
Water Surface Profile ◽  
Bed Scour

In steady open-channel flow, the use of a conventional point gauge to obtain the water surface profile yields reasonably accurate results. However, in unsteady and quasi-steady flows, the point gauge is not of much use. Furthermore, in flow fields where there is significant bed scour, it is often of interest to the hydraulic engineer to obtain the instantaneous bed scour profile during the scouring process. In most quasi-steady flows involving bed scour, the water surface profile continuously readjusts itself in response to the changes in the bed profile. To carry out a proper analysis of the entire flow field, it is necessary to obtain both the instantaneous water surface and the corresponding bed scour profiles. The development of a nonintrusive video image analysis procedure to simultaneously obtain the water surface and bed scour profiles in a two-dimensional flow field is presented in this paper. A computer program entitled PROSCAN has been developed to extract the water surface and bed scour profiles from digitized video images of the flow field. The use of PROSCAN is demonstrated by obtaining the instantaneous water surface and bed scour profiles for a two-dimensional flow field downstream of a sluice gate.Key words: image analysis, software development, water surface profile, bed scour profile, scour dynamics.

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