机构地区: 武汉大学水利水电学院
出 处: 《水动力学研究与进展(A辑)》 2005年第1期33-37,共5页
摘 要: 本文从流体力学基本方程出发,按相似理论分析得到方程中各种力的比尺,从理论上分析了河工变态模型的质量守恒、流线与涡旋中心以及各种力的相似程度,并定量给出了偏离量(误差),可利用这些结果可对物理模型试验成果进行合理修正。同时指出只用量纲分析法是不可能得到精度与误差量的判别。 According to similarity theory, we obtained the scales of the various forces in fluid mechanics equations. The similarity of conservation of water quantity, stream line, vortex and the various forces in distorted model were analyzed theoretically and the errors were given quantitatively. It can be used to correct the result of physical model. In this paper we also showed that it is can not get the criterion of accuracy and error only using dimensional analysis method.
领 域: [理学]