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Fundamental stuyd on reflection phenomenon of weak pressure-wave from an open end of a pipe
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 Title & Authors
Fundamental stuyd on reflection phenomenon of weak pressure-wave from an open end of a pipe
Kim, Hui-Dong;
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 Abstract
This paper describes a series of fundamental studies on reflection and emission of weak pressure waves from an open end of a pipe. Acoustical theories which have been employed in the plane pressure waves inside a pipe are applied to the present study. The objective of the present study is to investigate the reflection or emission coefficient of pressure wave at an open end of a pipe, the length of open end correction, and the directivity characteristics of the pressure waves emitted from the pipe. The results show that the reflection coefficient of pressure wave at an open end and the length of open end correction decrease for the wave length of pressure wave to increase. It is also found that the reflection coefficient for a baffle plate at the exit of pipe is larger than that for no baffle plate.
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 Language
Korean
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