Author: James F. Cowger
Publisher: CRC Press
ISBN: 1000151786
Category : Architecture
Languages : en
Pages : 236
Get Book Here
Book Description
Here is a complete guide to the collection, classification, and comparison of friction skin prints and the determination of identity and nonidentity. It discusses: the cause and significance of variations in prints; the importance of class characteristics in print; the application of probability in decision making; and photographic techniques and considerations.
Author: Donald W. Smith
Publisher:
ISBN:
Category : Compressibility
Languages : en
Pages : 44
Get Book Here
Book Description
Experiment have been conducted to measure the local surface-shear stress and the average skin-friction coefficient in incompressible flow for a turbulent boundary layer on a smooth flat plate having zero pressure gradient. Data were obtained for a range of Reynolds numbers from 1 million to 45 million. The local surface-shear stress was measured by a floating-element skin-friction balance and also by a calibrated total head tube located on the surface of the test wall. The average skin-friction coefficient was obtained from boundary-layer velocity profiles.
Author: James R. Bruno
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 42
Get Book Here
Book Description
The development of a skin-friction balance to be used in a wind tunnel with heat-transfer conditions is described. The balance is a null-type device with a floating head element whose temperature can be maintained between 100K and 345K. This is accomplished with a cooled or heated jacket that is placed in direct contact with the friction element. At the desired element temperature the jacket is separated from the element and the shear-force data is taken. The balance was used in a Mach 5 supersonic flow with moderate heat-transfer rates. Shear forces ranging from 0.05 gm/sq cm to 1 gm/sq cm have been measured and higher ranges can be obtained by simply changing a coil spring. (Author).
Author: N. K. Madavan
Publisher:
ISBN:
Category : Skin friction (Aerodynamics).
Languages : en
Pages : 58
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 352
Get Book Here
Book Description
Author: L. M. Albacete
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 68
Get Book Here
Book Description
The effects of the injection of a light, medium, and heavy gas on the skin friction and heat transfer characteristics of the laminar boundary layer flow over a flat plate were investigated. This was done by a numerical solution of the governing differential equations for injection rate parameters of -0, -0. 1, -0.2; Mach numers from 0 to 3; and wall-to-stream temperature ratios of 0.25, 0.50, and 1.00. The results show that the selection of discrete injection systems must represent a favorable compromise between conflicting factors (such as small molecular weight and large molecular diameters) which influence the amount of reduction in skin friction and heat transfer desired.
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 30
Get Book Here
Book Description
Author: Luther Neal
Publisher:
ISBN:
Category : Ablation (Aerothermodynamics)
Languages : en
Pages : 18
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 762
Get Book Here
Book Description
Author: André O. Barel
Publisher: CRC Press
ISBN: 1842145657
Category : Medical
Languages : en
Pages : 698
Get Book Here
Book Description
Written by experienced and internationally renowned contributors, this is the fourth edition of what has become the standard reference for cosmetic scientists and dermatologists seeking the latest innovations and technology for the formulation, design, testing, use, and production of cosmetic products for skin, hair, and nails. New to this fourth e
