大型深水库流速比测方法研究及比测结果相关性分析

ADCP测流具有快捷、方便等优点,ADCP测流方法、及其与常规流速仪对比测试是一个值得研究的课题,也是全面推进ADCP在测流中应用的基础。国内开展了一些ADCP与常规流速仪在天然河道中的对比测试研究工作,获得了ADCP与常规流速仪测试成果之间的相关关系。由于ADCP与常规流速仪在水库中对比测试的实例较少、缺乏可借鉴经验,因此本文依据ADCP与常规流速仪、动船与定船ADCP在不同调节性能水库中的对比测试结果,初步得出:在水库流速较小的条件下,ADCP与常规流速仪、动船与定船ADCP对比测试相关性较好,随着流速的增大,两者相关性显著提高。

Research on the methods of velocity comparative measurement and correlation analysis of the comparative observed results in large scale deep-water reservoirs

ADCP is a fast convenient flow measurement instrument.The comparative measurement of ADCP with traditional current velocity instrument is worth to study,for which is the basic of widely apply ADCP in flow measurement.In China,Many comparative measurement tests have been carried out about ADCP with traditional current velocity instrument in natural river,and the results are satisfying.But,the experience of velocity comparative measurement in reservoirs is rare,since there is nearly no people do the work in reservoirs.Therefore,through the analysis of the comparative observed results of ADCP with traditional current velocity instrument and moving ADCP with fixed ADCP in different regulation reservoirs,the preliminary conclusions can be gained as follows: in the condition of low speed flow in reservoirs,the correlation between ADCP and traditional current velocity instrument,moving ADCP and fixed ADCP are good.As the velocity increases,the correlation improves significantly.