A Method of Estimating Automobile Drag Coefficients PDF Download
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Author: R. G. S. White
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 7
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Book Description
Author: R. G. S. White
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 7
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Book Description
Author: Stephen A. Whitmore
Publisher:
ISBN:
Category : Drag (Aerodynamics)
Languages : en
Pages : 36
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Book Description
This paper develops a real-time method based on the law of the wake for estimating forebody skin-friction coefficients. The incompressible law-of-the-wake equations are numerically integrated across the boundary layer depth to develop an engineering model that relates longitudinally averaged skin-friction coefficients to local boundary layer thickness. Solutions applicable to smooth surfaces with pressure gradients and rough surfaces with negligible pressure gradients are presented. Model accuracy is evaluated by comparing model predictions with previously measured flight data. This integral law procedure is beneficial in that skin-friction coefficients can be indirectly evaluated in real-time using a single boundary layer height measurement. In this concept a reference pitot probe is inserted into the flow, well above the anticipated maximum thickness of the local boundary layer. Another probe is servomechanism-driven and floats within the boundary layer. A controller regulates the position of the floating probe. The measured servomechanism of this second probe provides an indirect measurement of both local and longitudinally averaged skin friction. Simulation results showing the performance of the control law for a noisy boundary layer are then presented.
Author: Stephen A. Whitmore
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
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Author:
Publisher:
ISBN:
Category : Skin friction (Aerodynamics)
Languages : en
Pages :
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Author: Donald A. Hurter
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 242
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Author: Wolf-Heinrich Hucho
Publisher: Elsevier
ISBN: 1483102076
Category : Technology & Engineering
Languages : en
Pages : 577
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Book Description
Aerodynamics of Road Vehicles details the aerodynamics of passenger cars, commercial vehicles, sports cars, and race cars; their external flow field; as well as their internal flow field. The book, after giving an introduction to automobile aerodynamics and some fundamentals of fluid mechanics, covers topics such as the performance and aerodynamics of different kinds of vehicles, as well as test techniques for their aerodynamics. The book also covers other concepts related to automobiles such as cooling systems and ventilations for vehicles. The text is recommended for mechanical engineers and phycisists in the automobile industry who would like to understand more about aerodynamics of motor vehicles and its importance on the field of road safety and automobile production.
Author: Arthur D. Little, Inc
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 248
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Book Description
Author: Donald A. Hurter
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 774
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Author: R. G. S. White
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 16
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Book Description
Author: Jan Roskam
Publisher:
ISBN:
Category : Drag (Aerodynamics)
Languages : en
Pages : 96
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Book Description
