The Possibility of the Use of High Explosive Layers in Ram Accelerators

• Autorzy: Kobiera A. , Wolański P.
• Języki publikacji: EN

Abstrakty

EN

The possibility of the use a high energetic solid material in a ram accelerator is discussed in this paper. First, some facts about multiphase combustion observed in ram accelerators are presented. While the core problem of using high explosive in supersonic propulsion is fast combustion, the first stage of work consisted of measuring ignition delays of selected high explosives. The ignition is triggered by a passing detonation wave. The experimental results proved that those materials can be applied to the ram accelerator and PETN has been selected as the best material. Next, a numerical model of ignition and combustion of a high explosive layer in a ram accelerator has been created and applied in numerical simulations. The obtained results allowed estimations of thrust enhancement and parametric analysis of the influence of some parameters on performances of the device. It was found that use of layers of high explosive can increase the generated thrust by about 10%. However this depends on such parameters as the speed of the projectile, initial pressure of the gaseous mixture, and the geometry of the projectile.

Słowa kluczowe

EN

high explosive; ram accelerator

• Wydawca: Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archivum Combustionis
• Rocznik: 2008
• Tom: Vol. 28 nr 3-4
• Strony: 149--171
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Kobiera A.

autor

Wolański P.

• Warsaw University of Technology, Faculty of Power and Aeronautical Engineering, ul. Nowowiejska 21/25, 00-665 Warsaw.

Bibliografia

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