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Numerical Investigation of the Flows in Cumulative Short-Plug Nozzles within the Framework of the Reynolds Equations

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Abstract

Numerical simulation is used to study the gasdynamics of annular cumulative nozzles. The class of nozzles considered includes those with a flat-ended plug and plugs of different length. The thrust performance of cumulative nozzles is determined over wide ranges of the nozzle pressure ratio and the specific heat ratio and the ranges on which the self-adjustment effect takes place are established. It is found that for low nozzle pressure ratios the cumulative nozzle with a flat-ended plug provides greater thrust than a finite-length plug nozzle optimal for operation in a vacuum.

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Authors
  1. E. V. Myshenkov
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  2. E. V. Myshenkova
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  3. N. I. Tillyayeva
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Myshenkov, E.V., Myshenkova, E.V. & Tillyayeva, N.I. Numerical Investigation of the Flows in Cumulative Short-Plug Nozzles within the Framework of the Reynolds Equations. Fluid Dynamics 38, 482–490 (2003). https://doi.org/10.1023/A:1025158425387

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  • DOI: https://doi.org/10.1023/A:1025158425387

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