CAJ | 학술논문

根据已有的传热传质关系式，通过CFD软件中自定义编程UDF的方法在控制方程中加载控制方程源项，建立了含空气蒸汽冷凝的数值计算模型，并运用此模型对两种已完成实验的共10组工况进行了数值计算。计算结果表明，本模型计算得到的结果可准确预测不同实验下的实验值，计算仿真得到的速度场和温度场较为细致地模拟了蒸汽冷凝过程中空气的分布状态。
근거이유적전열전질관계식，통과CFD연건중자정의편정UDF적방법재공제방정중가재공제방정원항，건립료함공기증기냉응적수치계산모형，병운용차모형대량충이완성실험적공10조공황진행료수치계산。계산결과표명，본모형계산득도적결과가준학예측불동실험하적실험치，계산방진득도적속도장화온도장교위세치지모의료증기냉응과정중공기적분포상태。
According to existing correlation between heat and mass transfer ,the conden-sation process of steam with air was successfully modeled by applying a user defined function (UDF) added to the commercial computational fluid dynamics (CFD) package . Moreover ,the model was used in two kinds of experiments ,covering a total of 10 sets of experimental conditions .Calculated profiles of temperature ,air concentration ,and velocity components were compared with experimental results and discussed .The simu-lation results indicate that there is a good agreement between the experimental results and the model prediction results .The distributions of velocity and temperature got from the simulation show a meticulous simulation of the air distribution in steam condensation process .