CAJ | 학술논문

对一台家用风冷冰箱的冷冻室建立了三维综合热流体模型。采用稳态可实现 k －ε紊流模型进行数值模拟和分析，并进行了试验验证。结果表明，模拟温度稍高于试验温度。测点的模拟温度值与实验温度相对误差最小的是1．03％，最大的是5．26％，表明模拟结果可靠。分析模拟结果发现，在远离出风口的位置气流基本停滞，不利于内部气流的换热，可以适当提高入风口的气流速度、在抽屉的底部开孔来增加上下的气流流动可以提高腔室的温度分布均匀性。
대일태가용풍랭빙상적냉동실건립료삼유종합열류체모형。채용은태가실현 k －ε문류모형진행수치모의화분석，병진행료시험험증。결과표명，모의온도초고우시험온도。측점적모의온도치여실험온도상대오차최소적시1．03％，최대적시5．26％，표명모의결과가고。분석모의결과발현，재원리출풍구적위치기류기본정체，불리우내부기류적환열，가이괄당제고입풍구적기류속도、재추체적저부개공래증가상하적기류류동가이제고강실적온도분포균균성。
Three-dimensional integrated thermal fluid model of the freezer compartment of a household air-cooled refrigerator was created.Steady-state realizable k-εturbulence equations was used to numerical simulation and validation experiments was carried out.The results shows that analog temperature slightly higher than the experimental temperature.The minimum temperature measur-ing point relative error is 1.03%,the largest is 5.26%,indicating that the simulation results reliable.Analyzing simulation results showed that:the flow basically stagnant away from outlet,which is not conducive to the internal flow heat.Therefore,the temperature of compartment can be improved through increasing the gas flow velocity and opening the air inlet at the bottom of the drawer.