Creation and simulation of very fast jets

Leyrat, J.P.; Charvet, E.; Pujols, H.C.

doi:10.1016/0734-743x(93)90043-7

Cited by 4 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There were published a few papers (1,2) on very fast jet velocities of more than 20 kmys using the so-called cavity charge. It was a problem to really measure the core of the very fast jets because they were strongly ablating when perforating the air and the eroded layer is not transparent.…”

Section: Introductionmentioning

confidence: 99%

Diagnostic of Superfast Jets with 25km/s Tip Velocities

Held¹

1998

Propellants, Explosives, Pyrotechnics

View full text Add to dashboard Cite

In so-called cavity charges superfast jets with tip velocities in the range of 25 kmys were found. Such fast jets are strongly eroding by the perforation of the ambient air. The ablated jet material forms a tube around the jet and is optically protecting the core of the jet itself. With tests, where the jet is elongating in a vacuum, this problem does not exist or is drastically reduced. To get enough special resolution, the pro®le streak technique (PST) was used to obtain the diameter of the stretching jet as a function of the passing time or with respect to its velocity gradient. With this special diagnostic technique the radius of these superfast jets was measured the ®rst time. The used test method with typical results together with the applied evaluation technique will be described.

show abstract

Section: Introductionmentioning

confidence: 99%