An experimental study of the near wake of a slender cone at varying incidence at M [infty infinity] = 7

Abstract

An extensive experimental study of the near wake of a 9° half-angle sharp cone at incidence at M∞, = 7 has been conducted. The model was suspended by six thin wires. The flow field in the plane of symmetry was surveyed from 0 to 2·5 diameters downstream of the base in the axial direction, and to the bow shock in the transverse direction. For three values of incidence (0° 5° and 15°))measurements were made of the static pressure, Pitot pressure and stagnation temperature, from which the streamline pattern was determined. In addition the u. = 0 line was found independently. The results of the measurements were also used to trace lines of constant Pitot pressure showing the shock waves, and lines of constant stagnation temperature in the viscous wake.

Diminished tektite ablation in the wake of a swarm

“…This circumstance is caused by the increased atmospheric relaxation rate and the overall compression of the gas which follows the lead tektite. Recent experimental characterizations of hypersonic wake conditions have been reported by Lahaye [1974], Marcillat [1974], and Avidor and Schneiderman [1974]. For the present discussion, however, we may draw initial inferences without specifying quantitatively the nature of hypersonic wake decay.…”