| 1. | The flow characteristics , eddy structure and energy dissipated mechanism of multi - horizontal submerged jets ( mhsj ) are studied by means of 3 - d numerical simulation
摘要采用三维数值模拟，研究了多股多层水平淹没射流的流动特性、漩涡结构和消能机理。 |
| 2. | Based on the 3 - d numerical simulation and the model test , many factors affecting the flow pattern stability and the hydraulic characteristics of the horizontal submerged jets are studied
摘要采用数值模拟和模型试验相结合的方法，分析了水股分层、坎高、出口体型和跌坎形式等因素对多股水平淹没射流的流态稳定性和水力特性的影响。 |
| 3. | Experiments about the influence of aeration on the velocity of the submerged jet was made . it has been proved that the main reason of the influence of aeration on scour is the more rapid decrease of the velocity of the submerged velocity . 6
对基岩的冲刷进行了数值模拟，选取临近底部的结点处的压强（压力水头值）与结点处水深的差值，再与结点处垂直于底面方向的速度分量的0 |
| 4. | The results show that multi - lever and multi - strand horizontal submerged jets are a new energy dissipation type and have better stability of flow patter , lower velocity in the slab and higher dissipated energy rate than the single - lever and the multi - strand horizontal submerged jets
研究表明，多股多层水平淹没射流较单层多股水平淹没射流流态稳定性好、临底流速低、消能率高，是一种高效的新型消能方式。 |
| 5. | According to rigorous procedures , an experimental study was carried out to investigate the effects of jet exit velocity , flow direction , fluid subcooling and nozzle diameter on hysteresis of boiling heat transfer with impinging circular submerged jets of highly - wetting liquids
摘要系统地研究了液体在圆形断面喷嘴浸没射流作用下沸腾热滞后与射流冲击速度大小、液体流动方向、液体过冷度和喷嘴直径等因素的影响。 |
| 6. | Finally , in orthogonal curvilinear coordinate systems numerical model is established and applied in the yangtze river estuary in which some regulation plans are taken include submerged jets and groins . verifications are also done to verify water level and velocity . flow fields are computed for the analysis of effect of regulation engineering on the whole water area
最后，应用正交曲线网格技术，建立了正交曲线坐标系下广义浅水方程的计算模式，将之应用于长江口深水航道整治工程的流场计算，进行实测水位、流速验证和流场模拟。 |
| 7. | The existing results about scour hole was summarized . experiments was made about the influence of aeration on scour , the dynamic pressure on the original riverbed and the scouring hole bottom , and the influence of aeration on the dynamic pressure and the velocity of submerged jet . scour was simulated by numerical model
在总结前人研究成果的基础上，试验研究了掺气对基岩冲刷破坏的影响；基岩冲刷过程中冲坑底部脉动压强随冲坑深度的增加而变化的特性；掺气对冲坑未形成前河床底部及基岩冲刷坑底部脉动压强的影响；掺气对射流轴线流速变化的影响等。 |
