CAJ | 학술논문

本文采用一多功能流体动力学计算软件，详细计算分析了NASA低速离心压气机叶轮内部的三维速度场。通过与实验数据以及其它软件计算结果详细定量的对比分析，研究了CFD软件预测叶轮内部流场的能力及存在的问题，提出了进一步提高数值计算精度的建议。
본문채용일다공능류체동역학계산연건，상세계산분석료NASA저속리심압기궤협륜내부적삼유속도장。통과여실험수거이급기타연건계산결과상세정량적대비분석，연구료CFD연건예측협륜내부류장적능력급존재적문제，제출료진일보제고수치계산정도적건의。
Based on a multifunctional CFD software, thethree-dimensional velocity field within the impeller of NASA low-speed centrifugal compressor is computed in detail in this paper.Detailed quantitative analysis is then carried out through comparing the results with experimental data as well as the results from another CFD software. Moreover, the ability of CFD sof ware to predict the flow field inside the impeller and the existing problems are studied. Suggestions are given to further improve numerical computation precision.