A Similarity Law for the Normal Force on a Delta Wing at Hypersonic Speeds

1959 ◽  
Vol 26 (2) ◽  
pp. 119-120 ◽  
Author(s):  
Arthur F. Messiter
Keyword(s):  
Normal Force ◽  
Delta Wing ◽  
Hypersonic Speeds ◽  
Similarity Law

Investigation of the leeward side of a delta wing at hypersonic speeds.

1969 ◽  
Vol 6 (2) ◽  
pp. 185-190 ◽  
Author(s):  
E. J. CROSS ◽  
W. L. HANKEY
Keyword(s):  
Delta Wing ◽  
Leeward Side ◽  
Hypersonic Speeds

Body-Wing Interference at Supersonic Speeds

1966 ◽  
Vol 70 (664) ◽  
pp. 497-505
Author(s):  
J. E. Phythian
Keyword(s):  
Pressure Distribution ◽  
Normal Force ◽  
Delta Wing ◽  
Cylindrical Body ◽  
Accurate Method ◽  
Computational Effort ◽  
Angle Of Incidence ◽  
Reasonable Accuracy ◽  
Available Information ◽  
Theoretical Results

SummaryA summary of available information on the problem of body-wing interference in supersonic flow has shown, inter alia, that a large number of theoretical methods are available for the prediction of interference characteristics. Many of these methods are chiefly concerned with the estimation of overall characteristics,i.e.normal force and pitching moment. Several methods are available to determine the pressure distribution for restricted types of configurations, but these often involve lengthy computation.It is the aim of this paper (Part I) to summarise a simple yet reasonably accurate method of estimating the pressure distribution and hence (in Part II) the overall characteristics of as general a body-wing configuration as possible. The method which applies essentially to a cropped-delta wing symmetrically mounted on a cylindrical body, achieves reasonable accuracy without considerable computational effort; it is based on certain theoretical results together with empirical modifications. The results for pressure are generally valid up to an angle of incidence, α=6° —8° and in some cases for higher values of α. The overall normal force and centre of pressure position should hold up to α= 10°.

Rheological characterization of tack and viscoelasticity of compositions of crepe coating used in the Yankee dryer

TAPPI Journal ◽  
2019 ◽  
Vol 18 (11) ◽  
pp. 641-649
Author(s):  
JOSHUA OMAMBALA ◽  
CARL MCINTYRE
Keyword(s):  
Normal Force ◽  
Weight Ratio ◽  
Good Combination ◽  
Rheological Characterization ◽  
Nonlinear Viscoelastic ◽  
Coating Composition ◽  
Linear And Nonlinear ◽  
Work Done ◽  
Tissue Production

The vast majority of tissue production uses creping to achieve the required set of properties on the base sheet. The Yankee coating helps to develop the desired crepe that in turn determines properties such as bulk and softness. The adhesion of the sheet to the Yankee surface is a very important characteristic to consider in achieving the desired crepe. The coating mix usually consists of the adhesive, modifier, and release. A good combination of these components is essential to achieving the desired properties of the tissue or towel, which often are determined by trials on the machine that can be time consuming and lead to costly rejects. In this paper, five compositions of an industrial Yankee coating adhesive, modifier, and release were examined rheologically. The weight ratio of the adhesive was kept constant at 30% in all five compositions and the modifier and release ratios were varied. The normal force and work done by the different compositions have been shown at various temperatures simulating that of the Yankee surface, and the oscillatory test was carried out to explain the linear and nonlinear viscoelastic characteristic of the optimal coating composition.

Experimental Investigation on Blunt-Edged UTM Delta Wing VFE-2 Configurations at Low Reynolds Number

2018 ◽  
Vol 12 (3) ◽  
pp. 255
Author(s):  
Muhammad Zal Aminullah Daman Huri ◽  
Shabudin Bin Mat ◽  
Mazuriah Said ◽  
Shuhaimi Mansor ◽  
Md. Nizam Dahalan ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Reynolds Number ◽  
Delta Wing ◽  
Low Reynolds Number ◽  
Low Reynolds
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