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Excitation of Narrow‐Band Pulsations in a Short Portion of Transition from the Smaller Diameter of a Pipe to a Larger Diameter and Possibilities of Preventing Them

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Abstract

By using models of the portions of the circuit of main gas‐compressor stations, data on the frequencies of narrow‐band pressure pulsations have been obtained; these data demonstrate the jet character of flow in divergent channels with angles of opening on one side of 12°47′ and 23°50′. It has been shown that narrow‐band acoustic disturbances are generated in the internal flow with large‐scale hydrodynamic structures. Intense narrow‐band pulsations are prevented by a grid of internal divergent channels in the transition portion with small angles of opening in canals and in excitation of certain disturbances upstream of a short divergent channel.

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Authors and Affiliations

  1. State Unitary Enterprise “State Scientific‐Research Center of the Central Aerohydrodynamics Institute,”, Moscow, Russia

    V. G. Zasetskii, R. K. Karavosov, A. G. Prozorov & L. I. Sokolinskii

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  1. V. G. Zasetskii
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  2. R. K. Karavosov
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  3. A. G. Prozorov
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  4. L. I. Sokolinskii
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Zasetskii, V.G., Karavosov, R.K., Prozorov, A.G. et al. Excitation of Narrow‐Band Pulsations in a Short Portion of Transition from the Smaller Diameter of a Pipe to a Larger Diameter and Possibilities of Preventing Them. Journal of Engineering Physics and Thermophysics 75, 94–100 (2002). https://doi.org/10.1023/A:1014870707179

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