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DIRECTIVITY CHARACTERISTICS OF NOISE GENERATING STACKS

CHANG CHIA-CHIEN

DIRECTIVITY CHARACTERISTICS OF NOISE GENERATING STACKS

CHANG CHIA-CHIEN
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  • Received Date:  21 February 1957
  • Published Online:  05 February 1957

DIRECTIVITY CHARACTERISTICS OF NOISE GENERATING STACKS

  • 1. 北京矿业学院矿山设备教研组

Abstract: The paper discusses radiation directivity patterns of noise generating stacks of various simple shapes (rectangular, square, circular). Earlier computation of Wells, R. and Crocker, B. E. is improved with regard to the assumption of baffles. The new formulae predict patterns for a wider region than the half space covered by the earlier computation and agree favorably with published experimental data.

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