• 제목/요약/키워드: Pulsating F1ow

검색결과 1건 처리시간 0.016초

가변 체적 헬름홀츠 공진기에 의한 유사 흡기 시스템의 비정상 유동특성 (Characteristics of Unsteady Flows in a Semi-Induction System by a Variable Volume Helmholtz Resonator)

  • 강경은;김경현;강희영;고대권
    • 동력기계공학회지
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    • 제13권6호
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    • pp.57-62
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    • 2009
  • Unsteady flows in a semi-induction system was investigated to verify their characteristics. A semi-induction system was designed and made to verify the Sow characteristics in an intake system. To attain an intact wave of an intake pulse, a single semi-intake system was adopted as a test rig. The system consists of an intake pipe and a rotary valve as a pulse generator, and a variable volume Helmholtz resonator. The variable volume Helmholtz resonator was mounted in the intake pipe to enhance a breathing capacity and engine performance. The phase and amplitude of the pulsating flow in an unsteady flow system were found to affect the charging capacity significantly. The behavior of pressure wave, their phase and amplitude were investigated in various regions. Some of the results obtained from experiments were described.

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