HT-7装置新低杂波相控波导阵天线及其微波特性测量

介绍了HT 7装置新低杂波天线的结构。根据天线波导的特殊结构,设计了一些必需的测量器件(过渡波导和测量多结波导阵的波导 同轴转换器),并提出了新天线的测量方案,给出了测量结果及其功率谱计算结果。

聚变堆高热流部件超汽化换热实验研究

搭建了常压水超汽化实验回路（HVL-Ⅰ）,采用平面激光诱导荧光（PLIF）、高速摄影、微距摄影、粒子成像测速（PIV）等先进测量技术,开展聚变堆面对等离子体部件（第一壁、偏滤器）在高热流过冷沸腾工况下强化换热特性实验研究.选择三角形和矩形翅片的铬锆铜超汽化样件,实验工况为常压室温（296K）,若丹明 B 水溶液流速0.3~0.5m.s-1连续可调,热流密度~5MW.m-2.实验结果表明同等工况下,矩形翅片比三角形翅片换热效果显著增强,性能提升约30%~50%.微距摄影显示翅根涡流形态保持时间越短,越有利于小汽泡充分扩散,从而使换热得到强化.

自由表面射流磁流体不稳定性分析(I)

利用微分解析方法分析了自由表面液态金属射流在非均匀的横向磁场中的稳定性行为,得出了在给定射流初始速度分布和磁场分布条件下,射流的速度空间分布表达式。在特定的条件下,射流存在固有稳定区,其稳定区长度与横向磁场的空间非均匀程度和射流的初始速度有关;但其向外溅射的位置与BT横向磁场的非均匀程度、射流的初始速度、液态金属粘滞系数和重力加速度有关。

Co-Simulation Research of the Mechanical-Hydraulic-Control Coupling System of ITER Tractor

The virtual prototyping models of the mechanical, hydraulic and control system of the ITER tractor were built with CATIA, ADAMS and MATLAB/Simulink respectively according to its heavy load and high precision characteristics, and the data transfer between the different models was accomplished by the integration interface between different software. Consequently the virtual experimental platform for the multi-disciplinary co-simulation was established. A co-simulation study of the mechanical-hydraulic-control coupling system of the ITER tractor was carried out. The synchronization servo control of parallel hydraulic cylinders was implemented, and the tracking control of the preconcerted trajectory of the hydraulic cylinders was realized on the established experimental platform. This paper presents the optimization design and technology rebuilding for the complicated coupling system with its theoretic foundation and co-simulation virtual experimental platform.

CFETR螺旋波行波天线的仿真设计与分析

在中国聚变工程实验堆(CFETR)螺旋波的设计参数下,提出一种多阵列行波天线用于螺旋波电流驱动的方案。利用电磁仿真软件CST对三维天线的参考模型进行了仿真,结果表明,在50MHz带宽内,天线电压驻波比<1.2,且天线阵列激发的k谱具有很好的定域性,有利于提高天线的电流驱动效率。

最清洁的能源

本文对人类最清洁的能源核聚变能作了简单的介绍

R&D on Resistive Heat Exchangers for HTS High Rated Current Leads

The HTS current leads of superconducting magnets for large scale fusion devices and high energy particle colliders can reduce the power consumption for cooling by 2/3 compared with conventional leads. The resistive sections of high-rated current leads are usually made of a heat exchanger cooled by gas flow. The supply of the cooling mass flow incurs more than 90% of the cooling cost for the HTS leads. The mass flow rate requirement depends not only on the length and material of the resistive heat exchanger, but also on the heat transfer coefficient and HEX surface, the joint resistance at the cold end of a sheet-stack HEX with a larger specific presented in the paper. The test results of efficiency can be achieved. and its cooling approach. The design and operation surface and a much smaller hydraulic diameter are an HTS lead optimized for 8 kA show that a 98.4%

Geometry Sensitivity of Magnetohydrodynamic Duct Flow and Some Abnormal Phenomena

Geometry sensitivity of magnetohydrodynamics （MHD） duct flow and some ab- normal phenomena deviating from the classical MHD laws were measured in an experimental investigation of the MHD effect of the flow channel inserter （FCI） duct flow. The results showed that the velocity distribution deviated from the M-type profile on the centre-plane of the cross section of the duct with small slots （in short ＂S-duct＂）. The electric potential difference in the duct wall was much lower than that given by the classical electromagnetic laws. The MHD pres- sure drop was much higher than that from the classical magneto-hydrodynamics theory. These results may help us find some new methods to reduce the MHD pressure drop, or explore other potential applications such as flow structure control.

硅钢水溶性环保极厚绝缘涂层及其制备方法

专利号：ZL201210224532．4

涂层裂纹的MHD压降研究

目前的研究已表明，自冷包层中的MHD压降问题可以在与液态金属流体接触的通道壁上涂电绝缘陶瓷涂层或自修复涂层而得到很好的解决。但因热应力等因素引起陶瓷出现裂纹或剥落，在陶瓷涂层出现裂纹或剥落后的MHD压降需要开展相应的实验工作。考虑到低成本和方便的涂层工艺，本研究中的绝缘涂层使用了在回路的运行温度下与流体介质相容的聚氨基甲酸脂，用旋转加热法在外径为64mm、内径为57mm的导电实验段的内壁均匀地涂上2.65mm厚的聚氨基甲酯酯电绝缘涂层，涂后的流道内径为51．7mm，如图1所示，D1－D5为设置的模拟涂层裂纹的铜电极，电要直径为10mm，长为100mm。P1和P2为差压传感器接口，间距为500mm。LEVI探针可测量该方向上的MHD流速分布。P1和P2，电极D1－D5以及LEVI接口均位于电磁铁提供的均匀磁场区域，其方向与液态金属流速和外加磁场垂直。采用特殊的涂层工艺，使每个接口连接处的液态金属不会通过这些电极、差压接口以及LEVI接口与导电的实验段外壁短路，确保全绝缘和各种模拟裂纹的MHD压降实验的可靠性和准确性。

绝缘壁通道上裂纹电极的MHD电位研究

本研究是在开展模拟涂层裂纹或未裂纹时的MHD压降实验研究时间时测量的裂纹电极间的MHD电位变化情况。实验段见文献（1）中的图1所示结构。用ΔV14、ΔV24分别表示余裂纹电极D1和D2与参考电极D4间实验测得的电位差，此外只选出具有一定代表性的电极间的电位差随雷诺数Re的关系曲线，即Re-Δ14和Re-ΔV24的实验曲线，其结果见图1－3所示。

自由表面磁流体射流不稳定性分析（Ⅱ）

在“自由表面磁流体射流不稳定性分析(Ⅰ)”一文中，分析了圆形截面自由表面磁流体射流在一个均匀或非均匀磁场中的不稳定性行为。本文以类似的方法分析了圆形截面射流(下文“射流”亦特指“圆形截面射流”)在两个相互垂直且非均匀的横向磁场中的磁流体不稳定性行为；这是磁聚变中液态金属偏滤器和限制器所处的情况，即，环向和极向磁场同时作用于自由表面射流。

MHD Instability Analysis of Liquid Metal Free Surface Jet Flow in Non-Uniform Magnetic Fields （Part Ⅱ）

In lost paper of magneto-hydrodynamic instability analysis of liquid metal free surface jet flow (Part Ⅰ), the magneto-hydrodynamic instability was analyzed for the jet flow in a transverse non-uniform magnetic field, BT. But, as all known, for the real conditions of liquid metal limiter-divertor plasma-facing components are in toroidal and poloidal fields. So, we try to analyze the magneto-hydrodynamic instability of the jet flow (hereby only for circular shape cross section jet flow) in the zone of non-uniform magnetic fields,

流体从分支管道流入引起的3维磁流体动力学效应

分支管道引起的磁流体动力学（MHD）效应是磁约束聚变堆液体金属包层或自冷包层的关键问题之一。然而，由于磁流体的复杂性和实验条件的限制，尤其2维（2D）和3维（3D）效应的实验数据还很少，分支管道的MHD效应实验结果尚未见报道，而且MHD压降理论值与实验值相差10％－25％，何种原因尚未深究。继开展流出分支管道引起的磁流体动力学（MHD）效应研究之后，我们利用国际合作渠道提供的仪器和国内唯一专门研究磁流体动力学效应液态金属回路，开展了3维和3维磁流体动力学效应实验研究。

新液态金属实验回路

本文报道液态金属实验回路的安全技术改造。改造完毕后的回路消除了原回路的周有安全隐患．改善了可调恒定磁场的稳定性，提升了数据采集和处理系统的性能和可靠性。安全改造后的新液态金属实验回路具备了开展液态偏滤器和液态包层相关的磁流体动力学效应（MHD）及其热工水力学方面的研究条件。