Experimental Study of the Wave-like Characteristics of Turbulence in Shear Layers and Behind Grids PDF Download
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Author: Balaram Bose
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Category :
Languages : en
Pages :
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Author: Balaram Bose
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ISBN:
Category :
Languages : en
Pages :
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Author: Balaram Bose
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Category :
Languages : en
Pages :
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Author: S. M. M. Salim
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Languages : en
Pages :
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Turbulence generation and control have been an immense interest among scientists and researchers due to the fact that nearly all industrial flows are turbulent. In some cases, turbulence is highly desired, for example chemical plants need higher turbulence for the efficient mixing of various substances whereas, in oil and pipe industries, whereas, turbulence in the pipe flows causes higher energy input to sustain the flow along the pipe length. Thus, control of turbulence directly contributes to cutting costs. The existing approaches to control such flows are case specific and no single universal approach exists owing to the lack of understanding of underlying physics. Many approaches have been taken to generate turbulence in laboratory set-ups for the past hundred years to study turbulence control. One such approach is the use of a rectangular grid through which the fluid is forced to generate so called grid turbulence. In contrast, we have made use of fractal geometry to generate turbulence for similar study. The self-similar edge characteristic of the fractal grids is thought to play the vital role in the enhanced mixing properties. Four sets of fractal grids, each with equal flow area, were used in the study. Our results from the experiments conducted in a circular wind tunnel indicate that it is possible to significantly improve the generation and control of turbulence by the introduced fractal approach.
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Category : Aeronautics
Languages : en
Pages : 464
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Author: David Conrad Stillinger
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Category : Channels (Hydraulic engineering)
Languages : en
Pages : 488
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Author: I. C. T. Nisbet
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Category : Turbulence
Languages : en
Pages : 306
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Author:
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Category : Mechanics, Applied
Languages : en
Pages : 686
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Author: James Joseph Rohr
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Category : Shear flow
Languages : en
Pages : 586
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Author:
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Category : Science
Languages : en
Pages : 1014
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Author: Aeronautical Society of India
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Category : Aeronautics
Languages : en
Pages : 320
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