Wyniki wyszukiwania - BazTech

1

Rozwój napędów detonacyjnych

Wolański Piotr

Przegląd Techniczny : Gazeta Inżynierska

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2022

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nr 6

30--35

PL

W pracy omówiono różnice między spalaniem deflagracyjnym i detonacyjnym. Przedstawiono sposoby wykorzystania spalania detonacyjnego w silnikach lotniczych oraz zjawisko wirującej detonacji. Opisano badania silników wykorzystujących proces wirującej detonacji przeprowadzone w Polsce.

EN

The paper discusses the differences between deflagration and detonation combustion. The ways of using the detonation combustion in aircraft engines and the phenomenon of spinning detonation were presented. The research of engines using the process of spinning detonation carried out in Poland has been described.

2

The rig stand for testing integrated rocket ramjet engine

Rowiński A.

Journal of KONES

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2016

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Vol. 23, No. 4

421--428

EN

Integrated rocket ramjet engine is adapted to aircraft propulsion and supersonic missiles moving at the speed of 8 Ma. The engine’s construction enables flexibly benefit from both types of drive depending on the conditions of the flight. The ejector mode of operation applicable to Mach numbers smaller than 2 cooperate with the rocket engine positioned in flow channel. Secondary air stream enters the engine through the convergent divergent nozzle and supplies the air to the ejector and booster. Rocket engine using the ejector effect would be used only in the phase of accelerating an object to the supersonic speed and then the drive would gradually shift to ramjet. The range of speed for the ramjet mode is 2-6 Mach. The prototype of the rocket ramjet engine of over 1300 N is equipped with annular combustion chamber in which phenomena of rotating detonation as well as the aero spike nozzle were used. Both the test stand as well as the engine is adapted to trials suitable to the conditions of a flight at the speed of 1.4 Ma. The test stand is powered by compress air coming from the instalment set up in the earth test bed and by oxygen and methane at a pressure of 10 bar. The rig is designed for functional tests of prototype, areas of the creation of mixture of firearms used to measuring and the range of stable functioning of the engine in the ramjet mode. Moreover, the measured parameters in gas supply installations as well as the temperature and pressure in the combustion chamber and thrust created by integrated rocket ramjet engine are measured.

3

Zastosowanie metod WENO do obliczeń propagacji fali detonacyjnej

Świderski K.

Prace Instytutu Lotnictwa

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2013

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Nr 2 (229)

26--36

PL

W pracy przedstawiono opis metody podwyższenia rzędu dokładności rozwiązania za pomocą rekonstrukcji WENO 5-tego rzędu. Na przykładzie propagacji płaskiej fali uderzeniowej w przypadku jednowymiarowym dokonano porównania rozwiązania uzyskanego metodą WENO i schematem 2-ego rzędu dokładności w czasie i przestrzeni.

EN

This paper describes the WENO method of the 5-th order of accuracy. A comparison between the existing solution obtained from the 2-nd order accurate in time and space scheme and the WENO solution has been made for one-dimensional blast wave propagation problem.