摘要
通过对临界流基本方程进行恒等变换,得到临界水深的无量纲方程,再依据逐次优化拟合方法,提出新的近似计算公式。计算结果表明,临界水深计算值的最大相对误差,完全满足工程精度要求。
The analytic solution is impossible to be derived. The dimensionless equation of critical depth was established after the identical transformation of fundamental critical regime equation. Approximate formula was proposed based on the theory of gradual optimal fitting. The results of error analysis and application example indicated that within the scope of practical engineering.
出处
《水科学与工程技术》
2016年第3期1-3,共3页
Water Sciences and Engineering Technology
关键词
城门洞形断面
临界水深
逐次优化拟合
近似计算公式
city-gate cross-section
critical depth
gradual optimal fitting
approximate formula
