Supersonic Combustion of a Scramjet Engine Using Hydrogen Fuel in Shock Tunnel

Srinivasan, Karthik; Maurya, Praveen Kumar; Kumar, Abhishek; Desikan, S. L. N.; Murugan, B.

doi:10.2514/1.j056761

Cited by 13 publications

(4 citation statements)

References 47 publications

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“…A scramjet engine can achieve much higher Mach numbers compared to a ramjet engine, but still cannot produce static thrust. Additionally, it is one of the most demanding and complex engine concepts from an engineering perspective (3)(4)(5) . Turbojets and the engines that employ onboard work transfer to the airflow are capable of operation from a standstill.…”

Section: Introductionmentioning

confidence: 99%

Multi-platform app-embedded model for hybrid air-breathing rocket-cycle engine in hypersonic atmospheric ascent

Tsentis¹,

Gkoutzamanis²,

Gaitanis³

et al. 2021

Aeronaut. j.

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This paper presents a performance analysis on a novel engine concept, currently under development, in order to achieve hybrid air-breathing rocket technology. A component-level approach has been developed to simulate the performance of the engine at Mach 5, and the thermodynamic interaction of the different working fluids has been analysed. The bypass ramjet duct has also been included in the model. This facilitates the improved evaluation of performance parameters. The impact of ram drag induced by the intake of the engine has also been demonstrated. The whole model is introduced into a multi-platform application for aeroengine simulation to make it accessible to the interested reader. Results show that the bypass duct modelling increases the overall efficiency by approximately 7%. The model calculates the specific impulse at approximately 1800 seconds, which is 4 times higher than any chemical rocket.

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Section: Introductionmentioning

confidence: 99%

Multi-platform app-embedded model for hybrid air-breathing rocket-cycle engine in hypersonic atmospheric ascent

Tsentis¹,

Gkoutzamanis²,

Gaitanis³

et al. 2021

Aeronaut. j.

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“…Hypersonic flight technology is a cutting-edge technology for the aerospace industry in the 21 st century. An aspirated hypersonic vehicle is one that is operated by an aspirated scramjet engine and flies at a Mach number exceeding 5 [1][2][3][4]. However, the high Mach number of scramjet engines results in severe thermal protection problems.…”

Section: Introductionmentioning

confidence: 99%

Effect of vibration in cooling channel on heat transfer of aviation kerosene flowing under different pressures

et al. 2023

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In this study, experimental methods are used to investigate the effects of different vibration and pressure parameters on heat transfer performance are analyzed. The results show that at a subcritical pressure(0.1 Mpa), the external vibration begins to affect the heat transfer when the fuel passes the phase-change point and becomes gaseous.; at a near-critical pressure(3 Mpa), the external vibration deteriorates the heat transfer of fuel across the critical-temperature zone; at the supercritical pressure(5Mpa), the external vibration intensifies the heat transfer in the hot end of the channel only when the fuel is below the critical temperature and the internal wall is above the critical pressure. Combined with data analysis, it can be seen that the external vibration mainly acts on the temperature boundary layer of the fuel oil to affect the wall temperature and heat transfer coefficient.

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“…An air-breathing hypersonic flight vehicle refers to an aircraft that has a flight Mach number of at least five. It is powered by an air-breathing scramjet engine [1][2][3][4]. However, the high Mach number of scramjet engines causes a severe problem with regard to thermal protection.…”

Section: Introductionmentioning

confidence: 99%

“…However, the high Mach number of scramjet engines causes a severe problem with regard to thermal protection. When the flight speed attains a Mach number of six, the aerodynamic heating and combustion heat release cause the peak heat flux in the combustion chamber to attain 3 MW/m 2 . This causes the central flow temperature of the combustion chamber to attain a value in the range of 2500 K-3000 K [5].…”

Section: Introductionmentioning

confidence: 99%

Study on influence of forced vibration of cooling channel on flow and heat transfer of hydrocarbon fuel at supercritical pressure

Chen

Han

et al. 2022

Therm sci

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The cooling channel of a scramjet is the fundamental structure of the active thermal protection for an engine. Till now, studies have focused mainly on the steady-state flow and heat transfer process in the cooling channel. However, the vibration intensity of an engine increases sharply as the flight speed increases, because of which, the flow and heat exchange mechanisms based on the cooling channel under stable conditions cannot be applied under vibration. In this study, experimental methods are used to study the characteristics of the forced vibration of a cooling channel on the flow and heat transfer of hydrocarbon fuel at supercritical pressure. In addition, the influences of different vibration frequencies and vibration amplitudes on the flow and heat transfer are analyzed. The research results show that at supercritical pressure, when the fuel temperature is below the critical temperature and the inner wall temperature is above the critical temperature, external vibrations would enhance the heat transfer characteristics of the cooling channel. However, when the pressure and temperature are unstable, the forced vibration of the cooling channel would suppress the instability of temperature and pressure while strengthening the heat exchange.

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Supersonic Combustion of a Scramjet Engine Using Hydrogen Fuel in Shock Tunnel

Cited by 13 publications

References 47 publications

Multi-platform app-embedded model for hybrid air-breathing rocket-cycle engine in hypersonic atmospheric ascent

Multi-platform app-embedded model for hybrid air-breathing rocket-cycle engine in hypersonic atmospheric ascent

Effect of vibration in cooling channel on heat transfer of aviation kerosene flowing under different pressures

Study on influence of forced vibration of cooling channel on flow and heat transfer of hydrocarbon fuel at supercritical pressure

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