天文学进展2016，Vol.34Issue(1)：1-19,19.DOI:10.3969/j.issn.1000-8349.2016.01.01
磁流体发电机实验进展及分析
Progress in Magnetohydrodynamic Dynamo Experiments and Analysis of the Results
摘要
Abstract
This paper describes state-of-the-art experiments of magnetohydrodynamic dy-namo and the main results of the current dynamo experiments. We first introduce the the-oretical basis of dynamos, which contains kinematic dynamo theory and dynamic dynamo theory. Then we describe the magnetohydrodynamic dynamo experiments based on the cur-rent theories. The experiments simulated liquid sodium as plasma, analysed the dynamo effects of different velocity distributions and the relation of velocity field and magnetic field. In the Riga dynamo experiment, the frequency of the magnetic field reversal was a constant if the plasma rotates with a constant speed. In the VKG magnetohydrodynamic dynamo experiment, the magnetic field inversed when the rotational frequencies of Propellers were different. However, Lyon also got the inverse field when he made use of external magnified circulation simulation effect in the VKG experiment. We can turn to study MHD instability and fluctuation after we testified the dynamo theory.关键词
发电机/磁流体/实验Key words
dynamo/magnetohydrodynamics/experiment分类
天文与地球科学引用本文复制引用
郭开明,杨志良,景海荣,陈荣,郑建川,潘业欣..磁流体发电机实验进展及分析[J].天文学进展,2016,34(1):1-19,19.基金项目
国家自然科学基金(U1231104) （U1231104）
