| 1. | Ensure the width / height ratio is locked ( chain is linked )
确保宽度/高度比锁(链条连接) |
| 2. | Ensure that the width / height ratio is locked ( chain is linked )
确保宽度/高度比锁(链条连接) |
| 3. | The effect of exit back pressure and length / height ratio of isolator on forebody / inlet flow field is analyzed and discussed in the paper
本文还研究了隔离段出口反压及隔离段长高比对进气道流场的影响。 |
| 4. | The results show the exit back pressure and length / height ratio of isolator have great impact on exit flow field and starting performance of inlet . high back pressure of inlet will result in unstart
研究表明：隔离段长高比对进气道出口参数影响较大；隔离段出口反压不能太高，否则会引起进气道不起动。 |
| 5. | However , for vertical roof solar chimney or inclined roof solar chimney with both ends open , either a large optimum gap - to - height ratio or no optimum chimney gap was found in the range of chimney gaps investigated
但是，对于带有竖直集热板或倾斜集热板屋顶式太阳能烟囱(其特点是两端完全开口) ，在研究范围内，或者得到很大最佳的宽度与高度的比值，或者没有找到最佳空气通道宽度值。 |
| 6. | At the end of this paper , two methods are given out to solve this problem : ( 1 ) to decrease the width to height ratio of the calculation model , make it not greater than 1 ; ( 2 ) to restrict horizontal displacement of lateral boundary / boundaries and to directly assign ground stress in the field of calculation model
解决这一问题的方法有两种： ( 1 )使计算模型的宽高比尽量等于或小于1 ； ( 2 )约束计算模型侧面边界的水平位移，在计算域内部给水平地应力直接赋值。 |
| 7. | A parametric analysis of the inviscid effects of leading edge sweep , sidewall compression , width - height ratio , cowl position and inflow mach number on spillage is finished . numerical simulations are completed for a series of inlets at various flight height and velocity . the research indicates that the area of spillage window , which is mainly determined by the position of the cowl , significantly influences the spillage characteristic of the scramjet inlet
阐明了侧板后掠的侧压进气道设计参数对构型溢流影响;对不同侧板配置方式的侧压式进气道进行了数值模拟,通过对比分析,发现由唇口板的位置所决定的溢流窗面积的大小对进气道溢流特性的影响显著。 |
| 8. | A three - dimensional - acoustic doppler velocimeter is used to measure the velocity components of the flow field in all three coordinate directions for different discharge and measurement site . the influence of measurement site and the depth / vegetation height ratio on the measured velocity profile and turbulence intensity and the renolds stress is analyzed . the characteristics of the measured velocity distributions and the results of the previous investigators are used to select an analytical expression for the shape of the velocity profile
利用三维超声波多普勒流速仪( adv )量测不同位置、不同流量下的瞬时流场。分析了测点位置和水深与植被高度比对时均流速分布的影响。本文还给出了种树段紊动强度及雷诺应力的垂线分布。 |
| 9. | At last some further research proposals of strengthening concrete structures with hfrp were presented : besides the theoretical descriptions of the durability of hfrp and its successful applications , further experimental research should be carried out to study its feasibility in strengthening concrete ; in order to inspect and amend the practical effect of the reasonable matching , experimental study of concrete columns and beams ( the author have fabricated 30 hfrp strengthening concrete columns with a diameter to height ratio of 1 : 3 and 15 concret
汕头大学硕士学位论文摘要最后提出了今后hfrp加固混凝土结构的研究设想，主要是: hfrp的耐久性除进行合理的应用实例和理论分析外，还需通过试验研究进一步论证其可行性。应将合理匹配用于梁柱加固试件(作者已制作30个直径/高为1 : 3的hfrp加固柱试件和15根混凝土梁试件供后续实验研究之用。 ) ，检验实际效果，并进行修正。 |
| 10. | However , it is found that there is a certain relationship between simulated result of non - uniform horizontal ground stress and geometrical shape of calculation model : the greater the width to height ratio of the calculation model is , the more unsatisfactory the simulation validity is and the greater the difference between practical ground stress and simulated stress is
通过简单模型的模拟试验，发现采用这种应力边界条件对水平地应力的模拟效果与计算模型的几何形状之间有一定的关系：计算模型的宽高比越大，模拟效果越不理想，与实际的地应力状况相差越大。 |
