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圆形断面临界水深的新近似计算公式
A new approximate formula to critical depth of round section canal
【摘要】 针对圆形管道临界水深现有计算方法的不足,通过对其临界流基本方程的数学变换及处理,提出一种新的近似算式,比《水工设计手册》推荐公式简单、准确,在适用范围内最大误差不超过1.5%。
【Abstract】 To aim at the shortage in the solution of critical depth for the round section canal, using the mathematics transform method and the theory of optimization and regression to deal with the basis equation of the critical depth, a new approximate formula was presented in the paper. The formula is much simple and accuracte than the others before, and its maximum error is less than (1.5%) in the utility range, so it can be widely used in practice.
【关键词】 圆形断面;
临界水深;
计算方法;
近似公式;
【Key words】 round section canal; critical depth; solution; approximate formula;
【Key words】 round section canal; critical depth; solution; approximate formula;
【基金】 国家863计划(甘肃张掖)
- 【文献出处】 长江科学院院报 ,Journal of Yangtze River Scientific Research Institute , 编辑部邮箱 ,2004年02期
- 【分类号】TV134
- 【被引频次】28
- 【下载频次】241