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HU Jun, REN Tan. Measurement of laminar burning velocities and Markstein lengths near rich propane/air flammability limits under microgravity conditions[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2011, 20(4): 466-471.
Citation: HU Jun, REN Tan. Measurement of laminar burning velocities and Markstein lengths near rich propane/air flammability limits under microgravity conditions[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2011, 20(4): 466-471.
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Measurement of laminar burning velocities and Markstein lengths near rich propane/air flammability limits under microgravity conditions

  • Key Laboratory of Dynamics and Control of Flight Vehicle, Ministry of Education, School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China

  • Received Date:2010-11-05
    Abstract
  • A small cubic closed vessel with schlieren measurement technique combined with high-speed video camera were used to study limit flame properties under microgravity conditions at atmospheric pressure and room temperature. The rich flammability limit of C 3H 8/air was determined to be 9.2% C 3H 8. Stretched flame propagation speeds, stretched laminar burning velocities and unstretched laminar burning velocities near rich C 3H 8/air flammability limits were measured at different equivalence ratios. Outwardly propagating spherical flames were used to study the sensitivities of the flame propagation speeds and laminar burning velocities to flame stretch using Markstein lengths. Unstretched laminar burning velocity at rich flammability limit was determined to be 1.09.cm/s. Lewis numbers were less than unity in rich C 3H 8/air and negative Markstein lengths were concluded. Absolute values of Markstein lengths were found to decrease linearly with equivalence ratios increase.
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    • References (12)
  • [1]
    Law C K, Sung C J, Wang H, et al. Development of comprehensive detailed and reduced reaction mech- anisms for combustion modeling [J]. AIAA Journal, 2003, 41: 1629-1645.
    [2]
    Qin X, Ju Y G. Measurements of burning velocities of dimethyl ether and air premixed flames at elevated pressures [J]. Proceedings of the Combustion Institute, 2005, 30: 233-240.
    [3]
    Jerzembeck S, Matalon M, Peters N. Experimental investigation of very rich laminar spherical flames under microgravity conditions [J]. Proceedings of the Combustion Institute, 2009, 32: 1125-1132.
    [4]
    Ronney P D. Understanding combustion processes through microgravity research [J]. The Combustion Institute, 1998, 27: 2485-2506.
    [5]
    Jarosinski J, Podfilipski J, Gorczakowski A, et al. Experimental study of flame propagation in propane-air mixture near rich flammability limits in microgravity [J]. Combustion Science and Technology, 2002, 174: 21-48.
    [6]
    Jarosinski J, Podfilipski J, Fodemski T. Properties of flames propagating in propane-air mixtures near flammability and quenching limits [J]. Combustion Science and Technology, 2002, 174: 167-187.
    [7]
    Pu Y, Hu J, Jarosinski J. Experimentally determined flame properties near flammability limits under gravity and microgravity conditions [J]. Combustion Science and Technology, 2009, 181: 1431-1442.
    [8]
    Bradley D, Gaskell P H, Gu X J. Burning velocities, Markstein lengths, and flame quenching for spherical methane-air flames: a computational study [J].Combustion and Flame, 1996, 104: 176-198.
    [9]
    Strehlow R A, Savage L D. The concept of flame stretch [J]. Combustion and Flame, 1978, 31: 209-211.
    [10]
    Chen Z, Burke M P, Ju Y. Effect of compression and stretch on the determination of laminar flame speeds using propagating spherical flames[J]. Combustion Theory and Modelling, 2009, 13: 343-364.
    [11]
    Markstein G H. Non-steady flame propagation [M]. New York: Pergamon, 1964.
    [12]
    Clavin P. Dynamic behavior of premixed flame fronts in laminar and turbulent flows [J]. Progress in Energy and Combustion Science, 1985, 11: 1-59.
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