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题名	螺旋式磁流体推进器的三维数值模拟及分析研究; 螺旋式磁流体推进器的三维数值模拟及分析研究
作者	1姜辉,电工研究所
学位类别	硕士
答辩日期	2009-06-03
授予单位	中国科学院电工研究所
导师	1彭爱武,电工研究所
关键词	螺旋式磁流体推进器 三维数值计算 性能分析 优化设计 Helical MHD thruster Performance analysis Three-dimensional numerical simulation Optimization of the design
其他题名	螺旋式磁流体推进器的三维数值模拟及分析研究
中文摘要	磁流体推进技术是一种将电磁能直接转换成流体动能的新型推进技术，与传统推进器相比，这种推进方式取消了螺旋桨、轴系、减速齿轮等转动部件，大大降低了由这些机械部件引起的噪声和振动，能实现船舶的安静航行。 中科院电工所从1996年开始，针对螺旋通道磁流体推进器进行了大量的实验研究和理论分析,对螺旋通道内部的流动特性进行了一维和准二维的分析研究。由于螺旋通道结构复杂，内部的流动特性呈现明显的三维特征。因此，一维和准二维的数值分析方法无法全面揭示螺旋通道内部的流动状态。从而给螺旋通道磁流体推进器的优化设计和性能预测带来一定的困难。 本论文从电磁场理论和流体动力学理论出发，建立了螺旋式磁流体推进器的数学模型，运用CFD分析软件对推进器的电磁特性和流动特性进行了三维数值模拟，研究了螺旋片和导流器的结构参数对推进器性能的影响。针对给定的超导对极螺管磁体，进行了推进器结构参数的优化分析，结果表明，在给定条件下，螺距为100mm、双叶片进口导流器的推进器具有最优性能。论文还对中日合作试验的磁流体推进器进行了三维数值模拟，分析了设计条件下推进器中各种损失的机理和推进器的性能特性，并与试验结果进行了比较，验证了该分析方法的正确性。 通过本文的研究，初步实现了螺旋通道磁流体推进器结构的优化设计和性能预测，为进一步研发实用化的磁流体推进器提供了理论依据。 Magnetohydrodynamic (MHD) propulsion is a new type of propulsion technology, which electromagnetic energy is directly converted into kinetic energy. Compared with conventional propulsion, this system eliminates the conventional rotating drive components; the absence of mechanical propeller system will lead to a reduction in the mechanical noise generated and make the ship driving quietly. Since 1996, Institute of Electrical Engineering, Chinese Academy of Sciences did a large number of experimental studies and theoretical analysis, in view of helical MHD thruster channel, and studied the flow characteristics in one-dimensional and quasi-two-dimensional analysis methods. For the complexity of the helical MHD channel structure, it appears three-dimensional characteristics significantly for the flow inside. Therefore, the flow in the channel can not be fully revealed by the one-dimensional and quasi-two-dimensional numerical analysis, which makes it difficult to optimize the designing and dope out the performance of the helical channel. In this paper, with the elcetromagnetic field and fluid dynamics theory, the three-dimensional mathematical model of helical MHD thruster were built, and three-dimensional numerical simulation on the characters of kinematics and the magnetic fluid dynamics inside the helical channel was carried on in use of CFD software. And, The relation between the structure parameters and the system performance was studied. On this basis, for a given superconducting solenoid magnet for the very helical tube, three-dimensional numerical simulations on the fluid characters in the helical channel have been carried on. Finally, it is found that the thruster with 100mm pitch, two helical wall and two flow guide vanes is the optimal. In this paper, three-dimensional numerical simulation on the Sino-Japanese experiment was carried on and the mechanism of the losses and the performance characteristics of propulsion were analyzed. Compared with the experimental results, the correctness of the analysis was verified. Through the study of this article, the design optimization of the structure and performance prediction of the helical MHD thruster have been realized initially, and a theoretical basis for the further research on practical MHD thrusters has been provided .
语种	中文
公开日期	2010-10-18
页码	82
分类号	TM1
内容类型	学位论文
源URL	[http://ir.iee.ac.cn/handle/311042/7167]
专题	电工研究所_其他部门_其他部门_硕士学位论文
推荐引用方式 GB/T 7714	1姜辉,电工研究所. 螺旋式磁流体推进器的三维数值模拟及分析研究, 螺旋式磁流体推进器的三维数值模拟及分析研究[D]. 中国科学院电工研究所. 2009.

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