CFD Simulation of Current Past Bluff Body at High Reynolds Number

2016 ◽  
Author(s):  
Ahmed Ibrahim ◽  
Chen-Pey Huang ◽  
Richard Korpus ◽  
Charles Dalton
Keyword(s):  
Reynolds Number ◽  
High Reynolds Number ◽  
Bluff Body ◽  
Cfd Simulation ◽  
High Reynolds

scholarly journals High-Reynolds-number weakly stratified flow past an obstacle

1996 ◽  
Vol 317 ◽  
pp. 155-178 ◽  
Author(s):  
S. I. Chernyshenko ◽  
Ian P. Castro
Keyword(s):  
Reynolds Number ◽  
Drag Reduction ◽  
Turbulent Flows ◽  
High Reynolds Number ◽  
Bluff Body ◽  
Physical Mechanisms ◽  
Flow Past ◽  
Large Channel ◽  
Weak Stratification ◽  
High Reynolds

Stably stratified steady flow past a bluff body in a channel is considered for cases in which the stratification is not sufficiently strong to give solutions containing wave motions. The physical mechanisms by which stratification influences the flow are revealed. In particular, the drag reduction under weak stratification, observed in experiments, is explained. This is achieved by constructing an asymptotic laminar solution for high Reynolds number (Re) and large channel width, which explicitly gives the mechanisms, and using comparisons with numerical results for medium Re and experiments for turbulent flows to argue that these mechanisms are expected to be common in all cases. The results demonstrate the possibility, subject to certain restrictions, of using steady high-Re theory as a tool for studying qualitative features of real flows.

CFD and ANN approach to predict the flow pattern around the square and rectangular bluff body for high Reynolds number

2021 ◽  
Author(s):  
Virendra Talele ◽  
Mathew V.K. ◽  
Niranjan Sonawane ◽  
Sudarshan Sanap ◽  
Archana Chandak ◽  
...  
Keyword(s):  
Reynolds Number ◽  
Flow Pattern ◽  
High Reynolds Number ◽  
Bluff Body ◽  
High Reynolds

WAVELET-BASED INVESTIGATION OF THE HIGH REYNOLDS NUMBER BLUFF BODY WAKE TOPOLOGY

2006 ◽  
Vol 04 (02) ◽  
pp. 321-332
Author(s):  
ADRIAN DOBRE ◽  
HORIA HANGAN
Keyword(s):  
Reynolds Number ◽  
High Reynolds Number ◽  
Bluff Body ◽  
Three Dimensional ◽  
Square Prism ◽  
Wavelet Techniques ◽  
High Reynolds ◽  
Bluff Body Wake ◽  
Topological Models ◽  
Recognition Technique

The high Reynolds number wake topology of a square prism is experimentally investigated using wavelet analysis. It is shown that a systematic application of one-dimensional continuous wavelet techniques, including a relatively new wavelet pattern recognition technique can reveal important three-dimensional features of the flow, assessing the validity of previously proposed wake topological models. Present results suggest that the high Reynolds number turbulent wakes are topologically similar, but not identical, to their laminar counterparts.

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