Experimental measurements in Hartman oscillators
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PORUMBEL, Ionuţ, CUCIUMITA, Cleopatra Florentina, NECHIFOR, Cristian Valentin, KUNCSER, Radu, CUCIUC, Tudor. Experimental measurements in Hartman oscillators. In: Transportation Research Procedia, 16-20 octombrie 2017, București. Amsterdam, Netherlands: Elsevier B.V., 2017, Ediția 6, Vol. 29, pp. 339-355. ISSN 2352-1457 E-ISSN:2352-1465. DOI: https://doi.org/10.1016/j.trpro.2018.02.031
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Transportation Research Procedia
Ediția 6, Vol. 29, 2017
Conferința "Aerospace Europe CEAS 2017 Conference"
București, Romania, 16-20 octombrie 2017

Experimental measurements in Hartman oscillators

DOI: https://doi.org/10.1016/j.trpro.2018.02.031

Pag. 339-355

Porumbel Ionuţ1, Cuciumita Cleopatra Florentina1, Nechifor Cristian Valentin1, Kuncser Radu1, Cuciuc Tudor2
 
1 National Research and Development Institute for Gas Turbines - COMOTI,
2 Institute of Applied Physics, Academy of Sciences of Moldova
 
Disponibil în IBN: 24 iunie 2021


Rezumat

The paper presents high frequency pointwise measurements of pressure and temperature carried out on a shock wave generator consisting of a couple of supersonic jets impinging on a Hartman oscillator system. The shock wave generator was developed as a means to achieve an aerodynamically controlled pulsed detonation chamber. The analysis allows the selection of the optimal geometry and inlet conditions for such an application. The effect of the inlet conditions and of the geometry of the experimental model on the frequency and amplitude of the pressure waves occurring in the system is analyzed. The paper also presents the effects of other geometrical parameters: the critical section of the jet nozzles, the volume ratio of the resonator geometry, and the inlet angles of the jets. Effects of inlet pressure and temperature are also included. 

Cuvinte-cheie
detonation, Hartmann oscillators high frequency measurements supersonic propulsion