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Quantifying Flow Structure in Vortex Chamber Using Fractal Dimension by Ali Reza Gheisi; Ali Reza Keshavarzi is a Physics and Astronomy article available to read on EtoBox.
What is Quantifying Flow Structure in Vortex Chamber Using Fractal Dimension about?
The flow in a vortex chamber consists of a series of vortices with a variety of different length scales. In the present study, an effort was made to scale and quantify flow structure inside the vortex chamber. To understand the structure of flow in a vortex chamber, three dimensions of flow velocity were measured using acoustic Doppler velocity meter (ADV). The velocity of the flow was measured in a fine grid from the bed to the water surface at sections 45°, 90°, 135°and 180°in the radius of the chamber. To scale the eddies of the flow, a fractal interpolation function algorithm was used to compute fractal dimension of tangential velocity, vertical velocity and Reynolds shear stress. The variation of the fractal dimension for tangential velocity, vertical velocity and Reynolds shear stress at the depth of flow and at the distance from the center of the chamber is investigated in this study. The results indicated that no significant variation for the fractal dimension of vertical velocity fluctuation and Reynolds shear stress was found for the depth in all sections. However, the fractal dimension of tangential velocity fluctuates significantly over the depth and in the distance fro
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It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- Ali Reza Gheisi; Ali Reza Keshavarzi
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0960-0779)
- Published
- 2008
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)