| 1. | In this paper , they different type of individual stake shrimp spread net model ' s experiment results in water trough are checked and analysed by the authors 摘要本文报道了不同型的毛虾单桩张网网模水槽试验结果,并作了分析比较。 |
| 2. | ( 3 ) hydraulic resistance coefficient formulas are derived according to a great number of flume experiments and relative theory analysis ( 3 )通过系列水槽试验和相关理论分析,提出了十字片梅花加糙的有效水深和水力阻力系数计算公式。 |
| 3. | Based on the extended shallow water equations , numerical model is established . verifications and comparison are done to verify its validity by the flume experiment with submerged dike 据此应用dsi法建立了相应的计算模式,利用水槽试验进行验证,并将该模式的计算结果与浅水方程的结果进行比较。 |
| 4. | Based on this research , the comparison study is made between pebble factual data in outdoors flume of hanqiwei in minjiang , 1965 , and calculation results of parts of classic formulas 在此基础上,用韩其为1965年在岷江五通桥茫溪河进行的卵石起动的野外水槽试验资料与一部分经典公式计算结果进行了对比研究。 |
| 5. | Only the method for using backwater expression can predict the variation of water surface near the spur dike very well . numerical simulations of the flume experiment cases are carried out with the standard k - e turbulence model 随后采用标准k一e紊流数学模型,依据水槽试验资料,数值模拟了绕坝和漫坝两种情况下水流的流动过程。 |
| 6. | Through the study above , a refined description and modeling to flow field and water surface near the groyne in river is conducted with 2 - d and 3 - d mathematical models . the results by simulation are consistent well with experiment data 通过上述研究,作者采用二维和三维数学模型对水槽试验和天然河道中丁坝附近流场和水面形态进行了精细地描述和模拟,计算结果和实测结果吻合良好。 |
| 7. | The results of flume experiment indicated that , the flow velocity and froude number of the overland flow would fall with the rainfall splash intensity rose ; the flow depth and resistance coefficient would enhance with the rainfall splash intensity increased 水槽试验结果表明:水槽槽面薄层水流流速及弗汝德数随雨滴打击强度的增加而降低,水深、阻力系数随雨滴打击强度的增加而增加。 |
| 8. | Through the flume experimental research , the velocity distribution formulas for rectangular open channel have been found , including parabola form of velocity distribution on the vertical and power form of mean velocity distribution on the transverse direction ; meanwhile , the means of ascertaining correlative coefficient have been given in this paper 摘要通过对明渠流速的水槽试验研究,建立了矩形断面明渠沿垂线流速的抛物线分布公式和横向平均流速的乘幂函数分布公式,同时给出了相关系数的确定方法。 |
| 9. | The application study of improved bp algorithm in sediment science - using two set of experiment data mentioned above , the value of d _ ( cmax ) and gross bed - load transport rate in non - uniform sediment with a wide distribution in flume experiment of stead sediment transportation have been forecasted by ann generator 改进bp算法在泥沙科学中的应用研究?将收集整理后的两次水槽试验实测资料作为数据来源,利用生成器生成网络对水槽平衡输沙试验中的最大起动粒径和总输沙率进行预测。 |
| 10. | The main contents are as follows : ( l ) through theoretic analysis and flume experiments , the characteristic of water resistance through frames is researched , and transforms relation between resistance coefficients and manning ' s roughness coefficients is established , and then experiential formula of manning ' s roughness coefficients is fitted 主要研究内容如下: ( 1 )通过理论分析和水槽试验,研究了穿越四面体框架群水流阻力系数的变化规律,建立了阻力系数与框架群等效曼宁糙率系数的转换关系,拟合出了糙率的经验计算公式。 |