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Design and experiments of the fuel control method for the scramjet engine

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Abstract

The control method is one of the key application technologies of the engine. And the core of the scramjet control system is the fuel-based control method. The design and the experimental verification of the scramjet fuel-based control method were mainly carried out in this paper. The correlation between the engine thrust, the wall pressure and the equivalence ratio was obtained by means of the numerical simulation. Combined with the results of experiments, the fuel control method and the verification method of the experiment, which chose the wall pressure as the feedback signal, were designed and developed, and the ground test of the fuel control method was carried out. The results of the numerical simulation and the experiment showed that (i) the magnitude of the wall pressure at some axial locations of the combustor was proportional to the fuel flow rate and (ii) the fuel control method based on the feedback signal, i.e., the wall pressure, and the choice of the location of the wall pressure control point were feasible and rational.

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Authors and Affiliations

  1. School of Power and Energy, Northwestern Polytechnical University, 127 West Youyi Road, Shaanxi Province, 710072, People’s Republic of China

    JIANPING LI, WENYAN SONG, XIAOBAO HAN & QIANG FU

  2. New Concept Jet Propulsion Technology Key Laboratory of Fundamental Science for National Defence, 127 West Youyi Road, Shaanxi Province, 710072, People’s Republic of China

    JIANPING LI & WENYAN SONG

  3. The 31st Research Insititute of CASIC: China Aerospace Science & Industry Corp, Beijing, 10074, China

    JUN NIU & WEI XUE

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  1. JIANPING LI
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  2. WENYAN SONG
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  3. XIAOBAO HAN
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  4. QIANG FU
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  5. JUN NIU
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  6. WEI XUE
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Correspondence to JIANPING LI.

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LI, J., SONG, W., HAN, X. et al. Design and experiments of the fuel control method for the scramjet engine. Sadhana 40, 155–171 (2015). https://doi.org/10.1007/s12046-014-0310-1

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  • DOI: https://doi.org/10.1007/s12046-014-0310-1

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