The term bursting refers to the structural change from a strong regular spiral motion to a weaker turbulent motion which can occur at some position along a vortex. Various observations of this phenomenon have been recorded ...

This paper has been prepared for publication from several papers written some years ago. It is essentially a new presentation of the more important features of the earlier papers. The paper is about the transonic area rule, ...

The problem of calculating the rotary lateral stability derivatives for a straight wing with a thin jet emerging at the trailing edge is considered. Based on Maskell and Spence's analysis of the effect of finite aspect ...

Measurements of the roll-damping derivative of three wing planforms were made by the free-flight roll-balance technique over the Mach number range 0.7 to 1.4. The wings were all of RAE 102 section, 7.5 per cent t/c and ...

It is well known that the separation point of a boundary-layer flowing over an impermeable surface is defined by the vanishing of the skin friction at that point. Previous investigations have assumed that this condition ...

PART I. The development of the flow pattern on a swept wing with incidence and stream Mach number is described. The wing, of aspect ratio 2.828, taper ratio 0.333 and leading-edge sweep 53.5 deg, was tested at Mach numbers ...

An investigation has been conducted at the National Gas Turbine Establishment into the performance of turbines having high pressure ratios per stage. The present Report discusses the mode of operation of supersonic nozzles ...

The concept of complex stiffness in problems of oscillations with viscous, or structural (hysteretic) damping is often used in a wrong way, leading to erroneous solutions. It is shown in the Paper that correct expressions ...

Resonance tests were made on a model delta aircraft to investigate the effect of stiffness changes of the leading- and trailing-edge spars on the frequencies and modes of vibration of the model. The results showed that, ...

Using Fourier integrals, a quasi-steady solution is obtained to the title problem where the direction of motion, shape and size of the loading distribution do not vary with time. The loads are, moreover, assumed equally ...