Advertisement

Combustion, Explosion and Shock Waves

, Volume 29, Issue 6, pp 694–698 | Cite as

Pseudoshock combustion regime

  • P. K. Tret'yakov
Article

Abstract

The combustion of fuels flowing with supersonic velocity in a duct of constant cross section is analyzed. Experimental data on the pressure at the duct wall are used to calculate the heat-release rates by a onedimensional procedure that takes into account the specific characteristics of combustion in a pseudoshock. It is shown that the heat-release rate, averaged over the length of the combustion zone and normalized to the maximum possible rate, depends on the ratio of the length of the combustion zone to the pseudoshock length for the isothermal case in flow stagnation up to a Mach number M=1.0 and not on the fuel injection technique or the length of the duct. An approach is suggested for determining the duct geometry in the pseudoshock combustion regime so as to organize the combustion process efficiently as a function of the flow parameters and the physicochemical characteristics of the field, which can be determined from specially designed experiments.

Keywords

Mach Number Kerosene Combustion Zone Duct Wall Stagnation Zone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    E. S. Shchetnikov, “Piecewise one-dimensional models of supersonic combustion and pseudoshock in a duct,” Fiz. Goren. Vzryva,9, No. 4, 473–483 (1973).Google Scholar
  2. 2.
    V. L. Zimont, V. M. Levin, and E. A. Mescheryakov, “Combustion of hydrogen in supersonic duct flow with pseudoshock,” Fiz. Goren. Vzryva,14, No. 4, 23–36 (1978).Google Scholar
  3. 3.
    P. K. Tret'yakov, “Determination of heat transfer to duct flow with pseudoshock,” Fiz. Goren. Vzryva,29, No. 3 (1993).Google Scholar
  4. 4.
    T. Ikui, Matsuo, and M. Nagai. “The mechanism of pseudoshock waves” Bull. Jpn. Soc. Mech. Eng.,17, No. 108, 731–739 (1974).Google Scholar
  5. 5.
    P. J. Waltrup and F. S. Billig, “Structure of shock waves in cylindrical ducts,” AIAA J.,11, No. 10, 1404–1408. (1973).Google Scholar
  6. 6.
    S. I. rozhitskii and V. N. Strokin, “Stagnation of supersonic flow in a duct during combustion,” in: Pioneers in the Conquest of Space and Where We Stand Today [in Russian] (collected scienctific papers), Nauka, Moscow (1988), pp. 57–61.Google Scholar
  7. 7.
    S. I. Baranovskii, V. M. Levin, and A. I. Turishchev, “Supersonic combustion of kerosene in a cylindrical duct,” in: Structure of Gaseous Flames [in Russian], Part 1, ITPM SO AN SSSR, Novosibirsk (1988), pp. 114–120.Google Scholar
  8. 8.
    A. Mestre and L. Viaud, “Combustion supersonique dans un canal cylindrique,” in: Supersonic Flow Chemical Processes and Radiative Transfer, D. B. Olfe and V. Zakkay (eds.), Pergamon Press, New York-London (1964), pp. 93–111.Google Scholar
  9. 9.
    E. P. Neumann and F. Lustwerk, “Supersonic diffusers for wind tunnels” Trans. ASME Ser. E: J. Appl. Mech.,16, No. 2, 195–202 (1949).Google Scholar
  10. 10.
    V. N. Ostras' and V. I. Penzin, “Experimental study of the friction force in a duct in the presence of pseudoshock,” Uch. Zap. Tsentr. Aérogidrodin. Inst.,5, No. 2, 151–154 (1974).Google Scholar
  11. 11.
    N. É. Gimranov and G. P. Lazarev, “Experimental study of the influence of mass transfer of a gas on pseudoshock parameters,” in: Problems in the Theory and Calculation of Working Processes in Heat Engines [in Russian], Ufa (1987), pp. 79–90.Google Scholar

Copyright information

© Plenum Publishing Corporation 1994

Authors and Affiliations

  • P. K. Tret'yakov

There are no affiliations available

Personalised recommendations