Reclamation Work Method Using Hydraulic Transportation

水力运输填海工程方法

• 批准号: 60850113
• 负责人: NODA Karoku
• 金额: $ 4.22万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60850113/
• 关键词: Slurry Transportation; Reclamation Work Method; Bingham Plastic Fluid; Circular Jet; Flow Through Rough Pipes; Flow with Moving Bed; Flow Through an Annulus; 抗力減少

(1) OBJECTIVE: This research objective is to get some results for contributing to reclamation work method using hydraulic transportation from studies on the dense phase slurry flow with lower viscosity fluid film flow aroun it in pipes, on the behavior of particles in solid-liquid two phase flow with moving bed in horizontal pipes, on the reduction of the pressure loss of the two phase flow by adding fine particles, on the circular jet of Bingham plastic fluid and the Bingham plastic fluid flow in rough pipes.(2) APPROCH: In order to achieve the objective, experimental researches on the pressure loss of the dense phase kaolinite slurry flow with water film flow around it in a pipe, on the velocity profile of the circular jet of Bingham plastic fluid and on the velocity profilo and the pressure loss of Bingham plastic fluid flow in rough pipes and theoretical studies on the behavior of particles in solid-liquid two phase flow with moving bed in horizontal pipes and on the velocity profi … More le of the circular jet of Bingham plastic fluid are projevted.(3) RESULTS: a) The velocity profile of Bingham plastic fluid annular flow with inner cylinder moving axially is obtained theoretically. b) The behavior of particles and the relationship between the mmoving bed height and the mean velocity in solid-liquid two phase flow in horizontal pipes are analyzed. c) The maximum reduction of pressure loss owing to the fine particles addition to the silicasand-water mixture flow in a horizontal pipe 1.5 in in diameter is 60% of the pressure loss of the mixture flow with the same velocity in the pipe. d) The velocity profile of the circular jet of Bingham plastic fluid in the fully developed flow region is analyzed theoretically and confirmed by the experiment. e) From the results measured the pressure loss of Bingham plastic fluid flow in rough pipes, it is seen that the friction factor of the fluid flow in the fully rough surface region is the same as the friction factor of Newtonian fluid flow in that region. Less

(1)目的：本研究的目的是通过对管道中具有低粘度液膜流的浓相浆体流动、水平管道中具有移动床的固液两相流中颗粒的行为、添加细颗粒降低两相流压力损失、宾汉塑性流体的圆形射流和宾汉塑性流体在粗糙管道中的流动。(2)方法：为了达到这一目的，对高岭石密相浆体在管内绕流时的压力损失进行了实验研究，宾汉塑性流体圆形射流的速度分布、宾汉塑性流体在粗糙管内流动的速度分布和压力损失以及颗粒在固体中运动的理论研究。水平管内移动床液固两相流动及速度分布 ...更多信息 提出了宾汉塑性流体圆形射流的理论模型。(3)结果：a）从理论上得到了Bingham塑性流体在内管轴向运动的环形流的速度分布。B）分析了水平管内固液两相流中颗粒的运动规律，以及移动床高度与平均速度的关系。（3）在直径为1.5英寸的水平管道中，细颗粒对硅水混合流的压力损失的最大减小量为同流速混合流压力损失的60%。d）对宾汉塑性流体圆形射流充分发展区的速度分布进行了理论分析，并得到了实验的证实。e）宾汉塑性流体在粗糙管中流动的压力损失的测量结果表明，流体在完全粗糙表面区域的流动的摩擦系数与牛顿流体在该区域的流动的摩擦系数相同。少

项目成果

Tadashi Masuyama, Shiro Matsui, Nobuo Hatakeyama and Karoku Noda: "Bingham plastic fluid flow through rough pipes" Journal of mining and metallurgical institute of Japan.

Tadashi Masuyama、Shiro Matsui、Nobuo Hatakeyama 和 Karoku Noda：“Bingham 塑性流体流经粗糙管道”日本矿业冶金研究所杂志。

益山忠: 日本鉱業会誌.

增山正：日本矿业协会杂志。

日本鉱業会東北支部秋季大会. (1985)

日本矿业协会东北分会秋季会议（1985年）。

日本鉱業会春季大会. (1986)

日本矿业协会春季会议（1986 年）。

Tadashi Masuyama, Karoku Noda and Toshio Kawashima: "Bingham plastic fluid annular flow with inner cylinder moving axially" Journal of mining and metallurgical institute of Japan.

Tadashi Masuyama、Karoku Noda 和 Toshio Kawashima：“内筒轴向移动的宾汉塑性流体环形流动”日本矿业冶金研究所学报。