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  • 국내학술대회

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    국내학술대회 제목 게시판 내용
    제목(국문) 관 출구로부터 방출되는 펄스파의 수치해석적 연구
    제목(영문) Computational Study of the Pulse Waves Discharged From The Open End of a Duct
    저자 김희동 (H.D.Kim ,안동대학교 기계공학과 ) ▷공저자네트워크등록하기
    김현섭 (H.S.Kim ,안동대학교 기계공학과 ) ▷공저자네트워크등록하기
    권용훈 (Y.H.Kweon ,안동대학교 기계공학과 ) ▷공저자네트워크등록하기
    이동훈 (D.H.Lee ,서울산업대학교 기계공학과 ) ▷공저자네트워크등록하기
    초록 This study addresses a computational work of the impulsive wave which is discharged from the open end of a pipe. An initial compression wave inside the pipe is assumed to propagate toward atmosphere. The over pressure and wave-length of the initial compression wave are changed to investigate the
    characteristic values of the impulsive wave. The second order total variation diminishing (TYD) scheme is employed to solve the axisymmetric, compressible, unsteady Euler equations. The relationship between the initial compression wave form and impulsive wave is characterized in terms of the peak pressure of the impulsive wave and its directivity. The results obtained show that for the initial compression wave of a large wave-length the peak pressure of the impulsive wave does not depend on
    the over pressure of the initial compression wave, but for the initial compression wave of a very short wave-length, like a shock wave, the peak pressure of the impulsive wave is increased with an increase
    in the over pressure of the initial compression wave. The directivity of the impulsive wave to the pipe axis becomes significant with a decrease in the wave-length of the initial compression wave.
    keyword Compression Wave (압축파), Impulse Wave (펄스파), Shock Wave (충격파), Unsteady Flow(비정상 유동), Shock Tube (충격파 관)
    저널명 대한기계학회 춘계학술대회 ▷관련저널보기
    VOL 1
    PAGE 355-360
    발표년도 2001
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