CAJ | 학술논문

根据汽车离心水泵的实际工作状况建立了水泵流体计算数学模型，利用计算流体动力学（CFD）技术，采用标准k-ε湍流模型和MRF多参考坐标系模型对水泵内流场进行了不同运转工况条件下的模拟分析，得到了不同工况下水泵叶轮表面的速度分布和水泵叶轮所在动态区剖面上的静压分布情况，并将CFD计算结果与试验数据进行对比，总体误差在5%之内，为新产品的设计开发提供理论依据，可有效缩短产品开发时间，降低产品开发成本，提高产品性能。
근거기차리심수빙적실제공작상황건립료수빙류체계산수학모형，이용계산류체동역학（CFD）기술，채용표준k-ε단류모형화MRF다삼고좌표계모형대수빙내류장진행료불동운전공황조건하적모의분석，득도료불동공황하수빙협륜표면적속도분포화수빙협륜소재동태구부면상적정압분포정황，병장CFD계산결과여시험수거진행대비，총체오차재5%지내，위신산품적설계개발제공이론의거，가유효축단산품개발시간，강저산품개발성본，제고산품성능。
According to the actual working conditions of automobile centrifugal pump, in this paper, the mathematical model of pump fluid computation is established, and the computational fluid dynamics (CFD) technology is used, the internal flow field of the pump is simulated and analyzed by using the standard K-ε turbulence model and the MRF multiple reference frame model under different working condition. The velocity distribution on the surface of the water pump impeller and static pressure distribution of the pump impeller’s dynamic area are got under different working con-ditions. The CFD calculation results compared with the test data,the overall control error is within 5%,which provide the theoretical basis for the design and development of new products. The conclusion shows that the product develop-ment time can be effectively shortened,and product development costs is reduced,and product performance is improved.