frft

R-R分布函数的源码，用来测试颗粒物浓度时亲测可用，值得下载(The source of R-R distribution function is used to test particulate matter concentration, so it can be downloaded, and is worth downloading.)

一维和二维Airy光场的输出，以及不同距离的传输模拟。自加速过程模拟(Simulation of Airy Beam)

可以读取gmesh软件产生的网格数据，读取.msh(Can read grid data generated by gmesh software, read .msh)

说明：  For the model of indoor air distribution tuyere proposed by Professor Zhang Tengfei, this paper is UDF code for fluent simulation.

高斯扩散模式适用于均一的大气条件，以及地面开阔平坦的地区，点源的扩散模式。排放大量污染物的烟囱、放散管、通风口等，虽然其大小不一，但是只要不是讨论烟囱底部很近距离的污染问题，均可视其为点源。(The Gauss diffusion model is applied to homogeneous atmospheric conditions, as well as to ground open flat regions, and to point source diffusion patterns. Chimneys, pipes, vents, etc. that emit large quantities of pollutants, although they vary in size, can be regarded as point sources as long as they do not discuss the pollution problems near the bottom of the chimney.)

说明：  惯导解算，速度更新，位置更新，卡尔曼滤波(INS hen for the whole navigation system, the modules of trace-generation and SINS calculation are programmed using Matlab language.)

求解双马赫反射问题的各种解法，黎曼求解器包括WENO格式和MDCD格式，时间方向采用Runge-kutta 方法，方程包括Euler方程和NS方程。(Program to solve Double Mach Reflection. Use WENO solver and MDCD solver to solve Riemann problem. Use Runge-Kutta to iterate in time scale. Equations conclude Euler equation and N-S equation.)

说明：  matlab编程利用hess simth面元法(边界元法)计算球体及椭球体附加质量(Matlab programming uses hess_simth surface element method (boundary element method) to calculate the additional mass of spheres and ellipsoids)

平面波从空气入射到石英玻璃中的P、S分量的能流反射率和透射率(Energy flow reflectivity and transmissivity of plane wave from P to S in the quartz glass.)

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)