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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