気泡モデルキャビテーション流れ解析による遠心ポンプ羽根車内の気泡挙動の予測(S25-1 気泡力学に関する基礎解析とその応用(1),S25 気泡力学に関する基礎解析とその応用)

概要

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The prediction of cavitation erosion by using numerical flow simulation is necessary for designing small high-speed pumps. This erosion is closely related to the bubble dynamics near the solid surfaces such as impeller blades and casing walls. We developed a new numerical simulation code for investigating bubble behavior in a centrifugal pump. We simulated distributions of the bubble number density, the bubble size and the bubble pressure, which were close to the impeller blade. The numerical results were consistent and revealed a potential of this code to predict flow and bubble behavior under the cavitation erosion conditions in a pump.
社団法人日本機械学会の論文
2004-09-04