Comparison Between Theory and Experiment for Wings at Supersonic Speeds

This paper presents a critical comparison made between experimental and theoretical results for the aerodynamic characteristics of wings at supersonic flight speeds. As a preliminary, a brief, nonmathematical review is given of the basic assumptions and general findings of supersonic wing theory in two and three dimensions. Published data from two-dimensional pressure-distribution tests are then used to illustrate the effects of fluid viscosity and to assess the accuracy of linear theory as compared with the more exact theories which are available in the two-dimensional case. Finally, an account is presented of an NACA study of the over-all force characteristics of three-dimensional wings at supersonic speed. In this study, the lift, pitching moment, and drag characteristics of several families of wings of varying plan form and section were measured in the wind tunnel and compared with values predicted by the three-dimensional linear theory. The regions of agreement and disagreement between experiment and theory are noted and discussed

The Queer Stopover: How Queer Travels in the Language Classroom

Over the last decade or so, developments in queer theory and queer perspectives have resulted in changes to the way that identities are viewed. However, the implications for foreign language classrooms are yet to be fully explored. This paper focuses on the challenges involved in introducing queer theory to the foreign language classroom. Specifically, it seeks to respond to the question How does queer travel to the French, Italian and Japanese classrooms in an Australian university? In doing so, it considers the challenges which emerge due to the structures of the languages, the sociocultural context and the teaching materials used in the classroom. It is written by experienced teachers as they considered, and in some cases trialled, how to integrate queer perspectives into their teaching. The challenges addressed here are not exhaustive, but represent those the authors consider as the most salient at the initial steps of the journe

Transonic flow past a wedge profile with detached bow wave

A theoretical study has been made of the aerodynamic characteristics at zero angle of attack of a thin, doubly symmetrical double-wedge profile in the range of supersonic flight speed in which the bow wave is detached. The analysis utilizes the equations of the transonic small-disturbance theory and involves no assumptions beyond those implicit in this theory. The mixed flow about the front half of the profile is calculated by relaxation solution of boundary conditions along the shock polar and sonic line. The purely subsonic flow about the rear of the profile is found by means of the method of characteristics specialized to the transonic small-disturbance theory. Complete calculations were made for four values of the transonic similarity parameter. These were found sufficient to bridge the gap between the previous results of Guderley and Yoshihara at a Mach number of 1 and the results which are readily obtained when the bow wave is attached and the flow is completely supersonic