0724 L2Fによる高数密度液滴のメガヘルツデータレート計測(S43-2 エンジンにおける計測およびモデリング(2),S43 エンジンにおける計測およびモデリング)

概要

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A micro probe laser 2-focus velocimeter (L2F) has been developed for the measurement of velocity and size of droplets in dense region of a spray. A five hole nozzle with an orifice diameter 0.113mm was used, and fuel was injected into the atmosphere at rail pressure 40 and 70MPa using a common rail injection system. Measurement of droplets near the spray center was conducted at 10mm downstream from the nozzle exit. It was confirmed that the rate of data-sampling should be increased to mega-hertz order for the measurement of narrow distance between droplets. It was also understood that the distance between isotropically dispersed droplets decreased by increasing the injection pressure from 40 to 70MPa.
社団法人日本機械学会の論文
2007-09-07