基于FLUENT的淹没环境高压水射流数值模拟

发布时间：2018-12-28 11:45

【摘要】：海底管道配重混凝土的去除工作是大多数水下管道维抢修的前提,高压水射流应用于海底管道配重混凝土的去除工作相比于机械方法优势明显。将高压水射流应用于海底需要探究淹没环境对射流效果的影响,通过FLUENT数值分析,分别研究了喷嘴直径、环境压力、射流压力对淹没射流动压的影响,得到了一些对工程有重要指导意义的结论,结论指出:淹没环境对高压水射流的效果削弱很大;环境压力对射流影响相对较小;喷嘴直径和射流压力对射流效果影响明显。最后通过淹没环境高压水射流破碎混凝土实验应用和验证了仿真所得结论。
[Abstract]:The removal of counterweight concrete in submarine pipeline is the premise of most underwater pipeline repair, and the application of high pressure water jet to the removal of counterweight concrete in submarine pipeline is superior to the mechanical method. The effect of submerged environment on jet effect is investigated by applying high pressure water jet to sea floor. By FLUENT numerical analysis, the influence of nozzle diameter, ambient pressure and jet pressure on submerged jet flow pressure is studied, respectively. Some conclusions of great significance to engineering are obtained. It is pointed out that the effect of submerged environment on high pressure water jet is greatly weakened; The influence of ambient pressure on jet is relatively small, and the influence of nozzle diameter and jet pressure on jet effect is obvious. Finally, the simulation results are verified by the experimental application of high pressure water jet crushing concrete in submerged environment.
【作者单位】：北京化工大学机电工程学院;北京石油化工学院机械工程学院;
【基金】：科技北京百名领军人才培养工程(Z131104000513025)
【分类号】：P756.2

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