Turbulent Boundary Layer Drag Reduction Using an Oscillating Wall PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Turbulent Boundary Layer Drag Reduction Using an Oscillating Wall PDF full book. Access full book title Turbulent Boundary Layer Drag Reduction Using an Oscillating Wall by Steven M. Trujillo. Download full books in PDF and EPUB format.
Author: Steven M. Trujillo
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: Steven M. Trujillo
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
Get Book Here
Book Description
This research program used experimental measurements and computational simulations to study the drag reduction, and the resulting effects on turbulence structure, for a turbulent wall flow subjected to lateral wall oscillations. Major objectives for this study were to establish wall oscillation conditions resulting in maximum drag reduction, and how the turbulence structure was altered so that this drag reduction was attained. Furthermore we were interested in the drag reduction performance over a range of Reynolds numbers, and the onset of the drag reduction at the start of the oscillating wall section, and the decay of drag reduction downstream of the oscillating wall. Our experiments showed the maximum drag reduction for an oscillating wall is 30%. Furthermore, the drag reduction reaches an asymptotic level with increasing wall oscillation velocity, with the maximum level occurring by approximately W sub wp=15. Drag reduction performance was tested for Reynolds numbers of Re theta =500, 950, 1400 and 2400, and the performance was found to be independent of Reynolds number for this range. Experimental and computational studies of the turbulence structure showed the oscillating wall has dramatic effect in practically eliminating the streak structures. Furthermore, the burst and sweep structures were suppressed.
Author: Alfredo Soldati
Publisher: Springer
ISBN: 370912574X
Category : Technology & Engineering
Languages : en
Pages : 319
Get Book Here
Book Description
Controlling turbulence is an important issue for a number of technological applications. Several methods to modulate turbulence are currently being investigated. This book describes various aspects of turbulence structure and modulation, and explains and discusses the most promising techniques in detail.
Author: Dennis M. Bushnell
Publisher: AIAA (American Institute of Aeronautics & Astronautics)
ISBN:
Category : Science
Languages : en
Pages : 544
Get Book Here
Book Description
Timely in two respects: the first is the growing awareness of the need for energy conservation in both transportation and process industries. The second is the recent emergence and application of several viscous drag reduction techniques. Laminar as well as turbulent flows are covered as are active
Author: Kamal Poddar
Publisher:
ISBN:
Category : Boundary layer control
Languages : en
Pages : 362
Get Book Here
Book Description
Author: John Benjamin Anders
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
Get Book Here
Book Description
Author: Robert L. Ash
Publisher:
ISBN:
Category : Drag (Aerodynamics)
Languages : en
Pages : 52
Get Book Here
Book Description
Author: Ramakrishna Balasubramanian
Publisher:
ISBN:
Category : Navier-Stokes equations
Languages : en
Pages : 126
Get Book Here
Book Description
Author: E. Coustols
Publisher: Springer Science & Business Media
ISBN: 9400921594
Category : Technology & Engineering
Languages : en
Pages : 183
Get Book Here
Book Description
Proceedings of the 4th European Drag Reduction Meeting
Author: Nasser Rashidnia
Publisher:
ISBN:
Category : Drag (Aerodynamics)
Languages : en
Pages : 520
Get Book Here
Book Description
