FFT

焊接模拟，fluent，电弧udf，钨极氩弧焊，源项(Welding simulation, fluent, arc udf, TIG welding, the source term)

湍流模型re计算流体力学软件udf 可以用于修改UDF文件(turbulence model FLUENT)

一些简单的UDF文件，实现流场中梯度和某一点压力的检测提取(Some UDF profiles)

样条插值算法的matlab代码，包括一次样条插值，二次样条插值和三次样条插值，可根据需要选择(Spline interpolation algorithm matlab code, including a spline interpolation, quadratic spline interpolation and cubic spline interpolation, can be selected)

四阶龙格库塔法，用C++编写，很有参考价值(Fourth-order Runge-Kutta method, written in C, a good reference)

对机械中的振动信号进行傅立叶变换，作出频谱图进行分析。(Fourier transform of the vibration signal)

傅立叶变换的C语言实现，可在Turbo C以及Visual C++下实现。(Fourier Transform C language, in Turbo C and Visual C under.)

一个通用的CFD求解器，代码结构清楚，简洁，适用于开发自己的CFD程序。(A general of CFD solver, the code structure is clear, concise, applicable to the development of the CFD program.)

说明：  研究舍入误差的例程，可以帮助初学计算方法的人。(Of rounding error in the routine that can help beginners who calculation.)

本程序用在测试采煤机煤矸识别系统中，验证小波算法(Wavelet Algorithm for caving coal)