I202 SPRAY STRUCTURE AND ASSOCIATED DROPLET VELOCITY IN THE INITIAL STAGE OF DIESEL FUEL INJECTION(Engine spray)

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概要

• 論文の詳細を見る

• This paper reports an experimental study of high-pressure diesel fuel sprays in their initial stage of development. Diesel fuel is injected from a single-hole nozzle at an injection pressure of 50 MPa into a high-pressure vessel. The internal structure of the spray is visualized with a laser-induced fluorescence (LIF) method. A direct cross-correlation PIV technique is applied to the spray images acquired with a double-pulsed illumination system in order to measure the droplet velocity distributions in the initial stage of spray development. It is found that some droplets located slightly upstream of the spray tip can have substantially higher axial velocities than the droplets located on the spray tip. It is also found that some droplets near the spray tip have large radial velocities as if they are injected out of the spray core. These findings are discussed in detail in conjunction with possible mechanisms for the generation of large-scale structures of diesel fuel sprays.

• 一般社団法人日本機械学会の論文
• 2000-10-01

著者

• Nishino Koichi

  Division Of Artificial Environment And Systems Yokohama National University

• Mizuno Shigehiro

  Graduate Student Department Of Mechanical Engineering And Materials Science Yokohama National Univer

• Torii Kahora

  Department Of Mechanical Engineering And Materials Science Yokohama National University

• Cao Zhao-Mini

  Ecotechnology System Laboratory, Yokohama National University

• Cao Zhao-mini

  Ecotechnology System Laboratory Yokohama National University

関連論文

• Spray Structure and Associated Droplet Velocity in the Initial Stage of Diesel Fuel Injection
• D110 STEREO IMAGING MEASUREMENT OF DROPLETS IN WATER SPRAY(Multiphase flow measurement)
• I202 SPRAY STRUCTURE AND ASSOCIATED DROPLET VELOCITY IN THE INITIAL STAGE OF DIESEL FUEL INJECTION(Engine spray)

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