CAJ | 학술논문

针对充流管道单向流固耦合数值模拟过程复杂、数据在耦合传递中存在偏差的问题，采用C＋＋语言编制了充流管道单向流固耦合数值模拟程序，实现了从模型建立、流体计算到结构分析过程的自动化，确保了从流体计算到结构计算过程中数据传递的准确性．利用参考文献中的试验数据验证了此程序计算结果的正确性，以实际发电厂的一段疏水管道为例进行单向流固耦合数值模拟，描述了程序自动建立管道模型、模拟管内流体压力分布以及将流体压力数据导入管道结构中进行管道应力计算的过程．结果表明：该充流管道单向流固耦合数值模拟程序具有结果准确、操作简便的特点，可应用于多种充流管道的设计改造和风险预测中．
침대충류관도단향류고우합수치모의과정복잡、수거재우합전체중존재편차적문제，채용C＋＋어언편제료충류관도단향류고우합수치모의정서，실현료종모형건립、류체계산도결구분석과정적자동화，학보료종류체계산도결구계산과정중수거전체적준학성．이용삼고문헌중적시험수거험증료차정서계산결과적정학성，이실제발전엄적일단소수관도위례진행단향류고우합수치모의，묘술료정서자동건립관도모형、모의관내류체압력분포이급장류체압력수거도입관도결구중진행관도응력계산적과정．결과표명：해충류관도단향류고우합수치모의정서구유결과준학、조작간편적특점，가응용우다충충류관도적설계개조화풍험예측중．
According to the fact that the process of numerical simulation on oneway fluid-structure interac- tion of fluid-filled pipeline is complex, and the data transferred in calculation is not exact, a simulation pro- gram has been compiled using C＋ q- language to automatically implement the model building, fluid calcu- lation and structure analysis, with which the automation of numerical simulation on one-way fluid-struc- ture interaction of fluid-filled pipeline is realized, and the authenticity of the data transferring is ensured. The calculation results of this program are verified by relevant experimental data in references. Taking the drain pipeline in a power plant as an ob}ect of study, numerical simulation is performed on the one-way flu- id-structure interaction, including automatically building the pipeline model, simulating the pressure distri bution of fluid inside the pipeline and analyzing the stress in the pipeline by introducing fluid pressure data to the calculation. Calculation results show that the program previously compiled is accurate in calculation and facile in operation, which is therefore suitable for design, retrofit and risk prediction of fluid filled pipeline.