Development of Hydrocarbon-Fueled Scramjet Engines: The Hypersonic Technology (HyTech) Program

Powell, Orval; Edwards, James T.; Norris, Richard; Numbers, Keith; Pearce, Jeffrey

doi:10.2514/2.5891

Cited by 103 publications

(64 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since then, various 13 hydrogen and hydro-carbon fueled scramjet engines have been developed under various programs [6]. In mid 1980"s, these efforts finally culminated into nation"s most influential hypersonics program called National Aerospace Plane (NASP), thus contributing to the modern scramjet development [8]. The NASP program was exclusively focused on achieving singlestage-to-orbit flight [8].…”

Section: Scramjet Engine Developments In United Statesmentioning

confidence: 99%

“…In mid 1980"s, these efforts finally culminated into nation"s most influential hypersonics program called National Aerospace Plane (NASP), thus contributing to the modern scramjet development [8]. The NASP program was exclusively focused on achieving singlestage-to-orbit flight [8]. The target was to develop and fly a synergistically integrated low speed accelerator, consisting of ramjet and scramjet propulsion system [6].…”

Section: Scramjet Engine Developments In United Statesmentioning

confidence: 99%

See 1 more Smart Citation

Computational Simulation of Scramjet Combustors - A Comparison between Quasi-One Dimensional and 2-D Numerical Simulations

Tourani

2011

17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference

View full text Add to dashboard Cite

Section: Scramjet Engine Developments In United Statesmentioning

confidence: 99%

Section: Scramjet Engine Developments In United Statesmentioning

confidence: 99%

Computational Simulation of Scramjet Combustors - A Comparison between Quasi-One Dimensional and 2-D Numerical Simulations

Tourani

2011

17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference

View full text Add to dashboard Cite

“…However, dramatic changes in properties when hydrocarbon fuel experiences the pseudo-critical temperature during the cooling [9] may lead to severe heat transfer deterioration [10][11][12][13] and the structure may get over-temperature, which is unacceptable. For another, at a certain local high heat flux zone, for example, the cavity, heat flux can be as high as 3MW /m 2 , which is a serious challenge for thermal protection [14,15]. As a result, proper heat transfer enhancement methods for hydrocarbon fuel are in urgent need.…”

Section: Introductionmentioning

confidence: 99%

Numerical heat transfer analysis of transcritical hydrocarbon fuel flow in a tube partially filled with porous media

et al. 2016

View full text Add to dashboard Cite

Hydrocarbon fuel has been widely used in airbreathing scramjets and liquid rocket engines as coolant and propellant. However, possible heat transfer deterioration and threats from local high heat flux area in scramjet make heat transfer enhancement essential. In this work, 2-D steady numerical simulation was carried out to study different schemes of heat transfer enhancement based on a partially filled porous media in a tube. Both boundary and central layouts were analyzed and effects of gradient porous media were also compared. The results show that heat transfer in the transcritical area is enhanced at least 3 times with the current configuration compared to the clear tube. Besides, the proper use of gradient porous media also enhances the heat transfer compared to homogenous porous media, which could help to avoid possible overtemperature in the thermal protection.

show abstract

“…It is important to note that the expected high pressure in the cooling loop (>3 MPa) causes the fluid to become supercritical in the channel. The principle and advantages of SCRAMJET and the interest to use hydrocarbon fuel have been fully studied (Powell et al, 2001). The modelling is a more feasible method than experiments for conducting engineering studies and for furthering research related to this topic.…”

Section: Introductionmentioning

confidence: 99%

Test bench dimensioned by specific numerical tool

Gascoin¹,

Gillard²,

Abraham³

et al. 2008

Computer Aided Chemical Engineering

View full text Add to dashboard Cite

One of the main issues of hypersonic flight is the thermal management of the overall vehicle. In order to simulate the behaviour of a complete actively cooled Supersonic Combustion Ramjet, a one-dimensional transient numerical model has been developed with heat and mass transfer particularly in a cooling channel for supercritical fuel under pyrolysis. It uses a detailed pyrolysis mechanism for n-dodecane (1185 reactions and 153 species). A further validation of the model, based on experimental and numerical data, is presented in this paper. The hydrodynamic behaviour is considered to be good enough for this numerical tool as the accuracy of fluid velocity computation is about few percents. The model is quantitatively validated under stationary conditions for both hydrodynamic and thermal aspects. The discrepancies between computed and experimental data remain close to 5 % or less on a thermal point of view. Furthermore, good agreement is found with transient experimental test case. Discrepancies are analysed and they remain in an acceptable range of a tenth of degree. A validation of the chemistry is provided thanks to experimental results. The pyrolysed mixture's compositions are well reproduced with only few percents of error. RESPIRE is now considered to be validated and it brings further analysis of the experimental data obtained with the new pyrolysis bench. Some interesting examples of use are given.

show abstract

Development of Hydrocarbon-Fueled Scramjet Engines: The Hypersonic Technology (HyTech) Program

Cited by 103 publications

References 11 publications

Computational Simulation of Scramjet Combustors - A Comparison between Quasi-One Dimensional and 2-D Numerical Simulations

Computational Simulation of Scramjet Combustors - A Comparison between Quasi-One Dimensional and 2-D Numerical Simulations

Numerical heat transfer analysis of transcritical hydrocarbon fuel flow in a tube partially filled with porous media

Test bench dimensioned by specific numerical tool

Contact Info

Product

Resources

About