CAJ | 학술논문

喷嘴是冲蚀试验机的关键部件之一，其设计参数的合理与否将直接影响到冲蚀试验机试验结果的准确性及试验效率。应用计算流体动力学数值模拟技术，以钻井液作为喷嘴的射流介质，建立钻井冲蚀工况所用锥直形喷嘴的有限元模型，对喷嘴的收缩角、长径比、直径、冲蚀距离等参数进行优化，为喷嘴的参数设计提供依据。
분취시충식시험궤적관건부건지일，기설계삼수적합리여부장직접영향도충식시험궤시험결과적준학성급시험효솔。응용계산류체동역학수치모의기술，이찬정액작위분취적사류개질，건립찬정충식공황소용추직형분취적유한원모형，대분취적수축각、장경비、직경、충식거리등삼수진행우화，위분취적삼수설계제공의거。
The nozzle is one of the key components of the erosion testing machine,so its design pa-rameter will directly influence the accuracy and the experimental efficiency of the erosion testing machine laboratory findings.Based on the fluid dynamics numerical simulation technique,the drilling fluid up for the fluid medium is made,and a cone shap e finite element model for the well drilling erosion behavior is built.The parameters of the contract angle,length/diameter ratio,di-ameter,erosion distance and so on are optimized,which provide the evidence for designing the noz-zle parameters.