• 제목/요약/키워드: Tubulence Intensity

검색결과 2건 처리시간 0.016초

선박엔진내 유동의 텀블 및 거동해석에 관한 연구 (Research on tumble and flow analysis in cylinder for marine engine)

  • 이병화;설동일;장영준;전충환
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2007년도 춘계학술대회B
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    • pp.3306-3310
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    • 2007
  • Many researches have been studied on in-cylinder flow as one of dominant effects for an engine combustion. Specially because the combustion flame speed is mainly determined by the turbulence at the end of compression process. Tumble and Turbulence ahead of combustion is very important phenomenon. As this phenomenon make research certainly, combustion condition will effectively be improve. This paper describes analytical results of the tumble flow, intensity, turbulence inside the cylinder of maritime engine. 3-D computation has been performed by using STAR-CD v3.26 solver and es-ice

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원주 후류의 응집구조에 대한 자유흐름 난류강도의 영향 (The Effect of Free Stream Turbulence on the Coherent Structures in the near Wake of a Circular Cylinder)

  • 정양범;양종필
    • Journal of Advanced Marine Engineering and Technology
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    • 제18권1호
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    • pp.60-72
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    • 1994
  • The effect of free stream tubulence on the coherent structure in the near wake of a circular cylinder was investigated by a conditional sampling technique. The measurements were made from C.T.A. with hot wire I-probe and a Split-film sensor. Contours of phase-averaged velocity and vorticities were presented and discussed. It was found that the value of the vortex strength increased with increasing free stream turbulence which can enhance the roll-up of the shear layer.

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