分子动力学计算液态金属性质的启发式教学方法  

HEURISTIC TEACHING METHOD FOR MOLECULAR DYNAMICS CALCULATION OF LIQUID ALLOY PROPERTIES

作　　者：王海鹏[1] 赵炯飞 WANG Haipeng;ZHAO Jiongfei(School of Physical Science and Technology,Northwestern Polytechnical University,Xi'an,Shaanxi 710072)

机构地区：[1]西北工业大学物理科学与技术学院,陕西西安710072

出　　处：《物理与工程》2022年第5期64-70,共7页Physics and Engineering

基　　金：陕西省研究生教育综合改革研究与实践项目;西北工业大学2021年度校级教育教学改革研究项目(2021JGZ15);西北工业大学学位与研究生教育研究基金(批准号:20GZ220101)。

摘　　要：分子动力学已经成为液态金属物理性质研究的重要方法,并在许多方面具有实验研究不可替代的优势。利用分子动力学计算可以获得宽温度范围内液态金属精准的物理化学性质,对于扩展液态金属物理化学性质数据库,以及进一步加深人们对高温液态金属的认识具有重要的意义。本文通过典型案例启发式地介绍液态金属密度、比热、扩散系数以及表面张力的计算过程,由浅入深地讲授了分子动力学模拟输出量和宏观物理性质之间的联系,并结合上机实验深化同学们对此的认识。经过教学改革与实践,这一教学过程设计生动形象地讲授了分子动力学计算液态金属物理性质的课堂内容,深化了液态金属结构与性质的教学效果。Molecular dynamics has become an important method to study the physical properties of liquid alloy, and has irreplaceable advantages in experimental research in many aspects. The accurate physical properties of liquid alloy in a wide temperature range can be obtained by employing the molecular dynamics, which is of great significance to expand the database of physical properties of liquid alloy and further deepening the understanding of high-temperature liquid alloy. Based on the type cases, the calculation process of the density, specific heat, diffusion coefficient and surface tension of liquid alloy have been heuristically introduced. The relationship between the outputs of molecular dynamics simulation with the macroscopic physical properties has been taught form the shallower to the deeper, and students’ understands of this relationship are deepened by combining the computer experiments. After teaching reform and practice, the classroom contents of the physical properties of liquid alloy calculated by molecular dynamics can be vividly taught, and the teaching effect of the structure and properties of liquid alloy is also improved by using this teaching process design.

关 键 词：教学改革 教学法 分子动力学 液态金属 

分 类 号：G642[文化科学—高等教育学] TG14-4[文化科学—教育学]