Measurements of Erosion Damage due to Solid Particle Impingement and Numerical Prediction of the Damage in Fluid Machinery

流体机械中固体颗粒撞击引起的侵蚀损伤的测量和损伤的数值预测

• 批准号: 04650148
• 负责人: MINEMURA Kiyoshi
• 金额: $ 1.34万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04650148/
• 关键词: Erosion; Slurry Pump; Solid-Liquid Two-Phase Flow; Solid Particle; Sand Pump; Numerical Simulation; Particle Impingement; 流体機械; エロージョン

Solid particles entrained in fluid machinery move separately from water streamline due to the difference in the densities between the particles and water, and impinge to wall surfaces of the machinery. It causes erosion damages on the surfaces. There are, however, nothing available to the estimation of the quantitative relationships between the impinging velocities and erosion ware. This research project has started to obtain the relationship and propose a more effective prediction method, which can estimate the erosion damage of fluid machinery. From the experiments, it is found that the erosion damage changes greatly according to the materials of test pieces and impinging angle against the wall. From the numerical work, estimated impinging velocities on the casing wall are, substantially, not affected by the particle impinging models with or without mutual colisions between the particles entrained.

流体机械中夹带的固体颗粒由于颗粒与水的密度差异而与水流线分开运动，并撞击机械壁面。它会导致表面侵蚀损坏。然而，没有任何方法可以估计撞击速度和侵蚀件之间的定量关系。本研究项目已开始获取这种关系并提出更有效的预测方法，可以估计流体机械的侵蚀损伤。实验发现，冲蚀损伤根据试件材料和对壁的冲击角度的不同而变化很大。根据数值工作，估计的套管壁上的撞击速度基本上不受颗粒撞击模型的影响，无论夹带颗粒之间是否存在相互碰撞。

项目成果

峯村吉泰: "固液二相流時のポンプケーシング壁面衝突運動の数値予測" 日本機械学会全国大会講演論文集. 930-63. 170-172 (1993)

Yoshiyasu Minemura：“固液两相流期间泵壳壁碰撞运动的数值预测”日本机械工程师学会全国会议记录 930-63（1993）。

峯村吉泰: "固液二相流時のうず巻ホンプケーシング壁面衝突運動の数値予測" 日本機械学会全国大会講演論文集. 930-63. 170-172 (1993)

Yoshiyasu Minemura：“固液两相流期间螺旋状圆顶套管的壁碰撞运动的数值预测”日本机械工程师学会全国会议记录 930-63（1993）。

K.Minemura: "Numerical Prediction of Particle Impinging Behavior in Pump Casing Under Solid-Water Two-Phase Flow Conditions" Proc. JSME. N.930-63. 170 (1993)

K.Minemura：“固水两相流条件下泵壳中颗粒撞击行为的数值预测”Proc。