石墨烯能带计算

根据高斯光束的特性，在matlab中作出束腰半径为0.5mm的高斯光束在束腰处的三维光强分布图。(According to the characteristics of the Gauss beam, the three-dimensional intensity distribution of the Gauss beam with the waist radius of 0.5mm at the waist is made in MATLAB.)

求解椭圆型方程生成二维翼型网格，并采用逐线松弛迭代技术求解了二维翼型绕流，这是CFD计算中的典型例子，是cfd初学者的很好的学习例子。(Solving elliptic equations, generating two-dimensional airfoil mesh, and using line relaxation iterative technique to solve the two-dimensional airfoil flow, which is a typical example of CFD calculation, a good example for new CFD learner.)

分层的一维热传导方程的有限差分法MATLAB程序，是简单的显式差分格式，尽量使用了矩阵运算，没有符号运算。 文件chafen1.m以路面为例，假设有多层建筑材料，热传导系数已经在代码中给出。用户使用时请按自己需要修改chafen1.m文件，增减层数，修改热传导系数等即可。(One-dimensional heat conduction equation finite difference method MATLAB program, is a simple explicit difference format, as far as possible use of matrix operations, no symbolic operations The file Chafen 1.m takes the road surface as an example, assuming that there are multiple layers of building materials, the thermal conductivity is given in the code. Users should modify the Chafen 1.m file according to their own needs, increase or decrease the number of layers, modify the thermal conductivity and so on.)

说明：  根据地层参数（速度、密度、厚度），设计相应子波，合成地震记录(According to the formation parameters (velocity, density, thickness), the corresponding wavelet is designed to synthesize the seismic record)

说明：  matlab语言编写，适合图形文章数据提取(Matlab language, suitable for data extraction of graphic articles)

通过拉格朗日方程模拟仿真双摆系统的运动过程，并生成poincare映射图(The motion process of double pendulum system is simulated by Lagrange equation, and Poincare map is generated.)

说明：  6901-计算空气动力学-傅德薰 1994，优质的计算空气动力学算法教材，适合初学者学习(6901 - computational aerodynamics - Fu Dexun 1994, high quality computational aerodynamics algorithm textbook, suitable for beginners to learn)

说明：  主要用于计算最常见的二维材料石墨烯纳米带的能带结构(It is mainly used to calculate the energy band structure of graphene nanoribbons, the most common two-dimensional material.)

说明：  Atef《MATLAB模拟的计算电磁学时域有限差分发》书后完整的MATLAB程序集合(Complete set of MATLAB programs of "Computational Electromagnetics Simulated by MATLAB Finite-Difference Time-Domain Distribution" by Atef)

说明：  利用matlab对轴系当量模型扭转振动的振型和频率进行计算(Calculation of torsional vibration modes and frequencies of shafting equivalent model by MATLAB)