English translation for "jets impingement"
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- 射流撞击
Related Translations:
- Example Sentences:
| 1. | The experimental results show that water jet impingement induces higher heat flux , higher critical temperature and narrower transition temperature range 水冷实验数据分析结果表明:射流能提高热流密度和临界温度,缩小过渡区温度区间。 | | 2. | The application of the jet impingement flowfield is wide , such as the vertical / short takeoff and landing ( v / stol ) aircraft , rocket , and the heat jet industrial application 摘要喷射撞击流在航空工程的应用有垂直短程起降飞机、火箭及热喷射工业应用等。 | | 3. | 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。 | | 4. | 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。 | | 5. | Micro - jets impingement cooling heat sink is used to cool the high power lda owing to the very thin hydrodynamic and thermal boundary layers in the impingement region when a jet impinges on a surface . reasonable array of jets can develop the uniform of temperature distribution on target very much 微射流阵列冷却热沉,是利用射流冲击在驻点区能产生很薄的边界层来提高换热效率的,合理的布置射流孔,可以极大的提高被冷却表面温度分布的均匀性。 | | 6. | Firstly , a temperature measurement system of thermochromatic liquid crystals is set up , various methods and approaches to improve the precision of thermochromatic liquid crystals temperature measurement are discussed , and affirmative experiments are made with carbon dioxide common jet impingement 本实验中,首先建立了一套完整的热色液晶定量测温系统,探讨了提高液晶测温精度的方法和途径。然后,利用所建立的系统对二氧化碳为工质的普通射流进行了验证实验。 | | 7. | Jet impingement cooling is an advantage method in heat transfer enhancement owing to its extremely high local heat transfer coefficient and simple structure . as regard as the combustor flame tube cooling structure is concerned , the impingement - converse convection - film composite cooling is an effective method , in this composite cooling structure , the impingement cooling problem could be modeled as impingement inside semi - confined channel 对于冲击-逆向对流-气膜复合冷却的火焰筒结构而言,火焰筒壁面冷气侧的冲击冷却实质上是半封闭通道的冲击冷却,即冲击射流从冲击孔板喷出,冲击到换热靶面后形成壁面射流沿通道单方向流出。 | | 8. | Then the thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed ribbed channel are measured by using infrared camera and the effects of flow and geometry parameters on convective heat coefficients are obtained . the results show that : the impingement cooling effectiveness of ribbed surface is affected greatly by the jet - to - surface spacing , and the best effectiveness is achieved under the jet - to - surface spacing equals to 1 . the correlation formulas of impingement heat transfer characteristics to the parameters are finally concluded and in good agree with the experiment data 最后,对单排、双排冲击孔试验板在半封闭通道展开了流量系数的研究,在变化各种几何因素及流动因素的情况下由实验得出了冲击孔流量系数值,讨论并分析了各种因素对流量系数的影响程度,建立了冲击孔流量系数的准则关系式,与实验结果对比表明:该准则关系式与实验实测数据吻合较好,精度较高,有较高的工程应用价值。 | | 9. | Of the currently available coolers for electronic products with a high heat flux , micro - jets impingement cooling heat sinks are able to provide the best heat transfer performance : lowering the maxmal temperature and the temperature difference . the heat transfer for multiple jets impingement has been studied firstly for summarizing a few rules . and then a copper micro - jets impingement cooling heat sink consisting of five copper sheets is designed in this paper and the jet diameter is 0 . 15mm 本文首先对阵列射流冲击进行了实验研究,总结了阵列射流冲击的一些规律和特性,在此基础上,根据数值模拟优化结果设计和制作了微射流阵列冷却热沉(射流孔直径d = 0 . 15mm ) ,并采用去离子水和氮气作为工质,对热沉内流体压降和传热特性进行了研究。 | | 10. | The thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement cooling heat transfer coefficients are deduced . the effects of flow and geometry parameters on convective heat coefficients are obtained . the results show that : for a single row normal impingement , the impingement cooling effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio , and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is oblique to the confined wall , the cooling effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement cooling , the cooling effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing 对于单排垂直射流,冲击冷却效果随射流雷诺数的增加、孔间距与直径比的减小而得到提高,冲击间距比为2时换热效果最好;冲击孔中心线向通道封闭一侧倾斜后,射流冲击冷却的范围变窄,当冲击间距比大于2时驻点区的对流换热能力明显降低;对于双排冲击射流,孔排间距与直径比的增加使冲击冷却范围变大,但在两排孔之间区域的对流换热系数有所下降;在较小的冲击射流雷诺数和较大的冲击间距比下,后排射流的冲击换热效果要逊于前排射流。 |
- Similar Words:
- "jetrig" English translation, "jetro" English translation, "jetro machinery news" English translation, "jetrodollars" English translation, "jets" English translation, "jets n guns" English translation, "jets n guns gold" English translation, "jets screeching over the housetopss" English translation, "jetsam" English translation, "jetsey" English translation
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