| 1. | This paper applies the lattice boltzmann method to simulate flow and energy transport of nanofluids 本文基于格子boltzmann方法研究纳米流体的流动与能量传递过程。 |
| 2. | In this paper , we mainly use turbulent gas - particle two - phase flow model to simulate flow field of rear smoke channel 因此,本论文提出用数值模拟计算的方法解决这类工程实践中容易出现的问题。 |
| 3. | It is important to develop experiment techniques to simulate flow field in the study of solid rocket motor with high acceleration 本文以高过载固体火箭发动机研制需求为背景,围绕高过载发动机内流场的地面模拟试验技术展开研究。 |
| 4. | The main objective of this dissertation was to develop methodologies with capability of engineering application for simulating flow in fractured rock using discontinuum models 本文的主要工作是致力于发展具有工程应用能力的非连续介质数值模型。 |
| 5. | The impaction of numerical precision on the accuracy of simulated flow field is checked . curving level of throat wall arc mesh is compared to see the effect on flow loss 并比较了数值精度对流场模拟精度的影响和喉道壁面网格的圆弧度处理对流动损失的影响。 |
| 6. | 3 . based on finite element theory , capacitance sensor model is built , and variable medium distributings are set to simulate flow pattern , and capacitance values are calculated 基于有限元原理,建立电容传感器模型,设定不同的介电常数分布模拟各种流型,计算各种流型下的28维电容值。 |
| 7. | Cfx software is used to simulate flow fields of water cushion pool . contour stream line , vortex and kinetic energy in water cushion pool are found and offered as visualization form . the results of numerical simulation and piv are analyzed and compared in this paper 使用数值软件( cfx )对此水工实验模型的淹没射流流场进行了数值模拟,得到水垫塘内的速度场、等流函数线图,将这些计算结果以可视化结果的形式给出。 |
| 8. | Firstly , simulate flow field of rear smoke channel , plot velocity magnitude and ash concentration distribution in section of entry of heat pipe air preheater , compare with data which were measured in guiyang power station , verify simulation to be reasonable and right . secondly , simulate all kinds of factors which affect flow field ' s uniformity such as length , thickness , location of diffluent board , ash concentration , ash diameter , and so on , find the chiefly factors . thirdly , install guide board in curve channel in rear smoke channel , then simulate its " flow field , plot velocity magnitude and ash concentration distribution 在此基础上模拟在冬夏两季不同情况下,不同流速对热管空气预热器壁面温度的影响;然后对影响整个流场分布的各种因素:包括分流板长度、厚度、偏离中心流道位置的偏离度、飞灰浓度、飞灰粒径等因素进行数值模拟;最后提出在分流烟道转弯处加装导流板,并模拟加装导流板后的流场分布,得到下级空气预热器出口、热管空气预热器进口处的断面速度场分布、浓度场分布,以论证加装导流板能达到流场均匀化的作用。 |
| 9. | In summary , this paper developed experiment techniques to simulated flow field in overloading srm . it is an effective way to study inhibitor ablation pattern under high acceleration condition . the experiment results provided basis for investigating ablation mechanism and thermal protection 通过本文的研究工作,发展了一种高过载发动机内流场模拟实验技术,为开展高过载条件下绝热层烧蚀研究提供了有效的实验手段;获得的绝热层烧蚀实验结果以及粒径分布规律,为高过载条件下绝热层机理研究奠定了基础,为高过载发动机热防护设计提供了依据。 |
| 10. | Through the research in this thesis , following conclusion can be drew : on the condition of nearly incompressible limit , the n - s equations can be recovered by the lb method ' s models with 2 - order numerical precision ; computational efficiency in simulating flow fields can be improved effectively by perfection of the lb method ' s theory ; development of parallel computation can contribute to the simulation of large - scale flow field with complex geometry 通过本文的研究,可得出如下结论: lb方法的模型在接近不可压缩的条件下能够以二阶精度逼近n - s方程; lb方法理论的完善能够有效地提高流场模拟的计算效率;并行计算的发展有利于lb方法模拟大尺度的复杂流场。 |