| 1. | Numerical simulation of suction flow field controlled by orbicular rotary jet 环形旋转射流屏蔽抽吸流场的数值模拟 |
| 2. | High pressure rotary jet grouting applied to curtain construction of drop shaft sinking 高压旋喷注浆法在沉井帷幕施工中的应用 |
| 3. | The effect made by rotary jetting decreases with the increasement of reynolds number 旋转射流对换热的此种影响随雷诺数的增大而减弱。 |
| 4. | Study of high - pressure rotary jet grouting in inclined shaft construction crossing through drift sand ground 高压旋喷在斜井井筒过流沙层施工中的技术研究 |
| 5. | Then , a twisted tape is inserted the tube to produce rotary jetting , and rotary jet complex enhanced heat transfer for carbon dioxide jetting in air is studied by the thermochromatic liquid crystals temperature measurement system 在此基础上,在管内插入扭转带产生旋转射流,采用热色液晶测温系统对二氧化碳为工质的旋转射流复合强化传热进行了研究。 |
| 6. | The main object of this dissertation is to set up a temperature measurement system of thermochromatic liquid crystals . furthermore , a twisted tape is inserted into the tube to produce rotary jetting , and rotary jet impingement heat transfer is studied 本论文研究的目的是建立一套热色液晶测温系统,在管内插入扭转带,产生以二氧化碳为工质的旋转射流,然后采用液晶测温技术对旋转射流冲击冷却换热进行研究。 |
| 7. | Rotary jet impingement heat transfer is a complex enhanced heat transfer technique which uses two kinds of ways to improve heat transfer coefficients greatly . quantitative temperature measurement using thermochromatic liquid crystals ( tlcs } is a " field " temperature measurement technique 旋转射流冲击冷却换热是一种复合强化传热技术,它是将射流冲击与管内插入扭转带这两种强化措施同时应用,以期获得更大传热效果的技术。 |
| 8. | It is found that , the heat transfer coefficients in the area after at stagnation point is higher than that of common jetting although the heat transfer coefficients are smaller at stagnation point , and , comparing to common jetting , rotary jetting contributes to the even distribution of heat transfer coefficients near stagnation point 结果表明,尽管旋转射流的努谢尔特数在驻点附近低于普通射流的努谢尔特数,但在壁面射流区高于普通射流的努谢尔特数。与普通射流相比,旋转射流导致驻点附近区域的换热特性趋于均匀化。 |