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Thrust of a contracting nozzle

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Abstract

A study is made of the influence of the nonuniformity of the parameters due to the two-dimensional nature of the flow on the specific thrust of a contracting nozzle. It is shown that for continuous flow of an ideal (inviscid and nonheat-conducting) gas the specific thrust in the supercritical regimes exceeds the value determined using the one-dimensional theory for the same stagnation parameters of the gas; in the subcritical regimes the specific thrust of the contracting nozzle is equal to the value found from the one—dimensional approximation.

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Literature cited

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    A. N. Kraiko and V. E. Sokolov, “Specific thrust of the flow at the minimal section of a Laval nozzle and at the exit section of a contracting nozzle,” Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 1, 186 (1976).

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    A. A. Nikol'skii and G. I. Taganov, “Motion of the gas in the local supersonic region and some conditions for the breakdown of potential flow,” Prikl. Mat. Mekh.,10, 481 (1946).

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    S. K. Godunov, A. V. Zabrodin, M. Ya. Ivanov, A. N. Kraiko, and G. P. Prokopov, Numerical Solution of Multidimensional Gas-Dynamic Problems [in Russian], Nauka, Moscow (1976), p. 400.

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    R. K. Tagirov, “Theoretical investigation of ideal gas flow in contracting nozzles,” Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 2, 198 (1978).

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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 6, pp. 181–183, November–December, 1983.

I thank A. N. Kraiko, V. P. Safonov, R. K. Tagirov, and D. A. Mel'nikov for helpful discussions.

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Shcherbakov, S.A. Thrust of a contracting nozzle. Fluid Dyn 18, 992–995 (1983). https://doi.org/10.1007/BF01090763

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Keywords

  • Continuous Flow
  • Dimensional Approximation
  • Supercritical Regime
  • Subcritical Regime
  • Specific Thrust