Finite Difference Time Domain running code using PML boundary condition

finite volume method for one dimensional fin code

适用于换热器行业，专门用来计算低肋管外表面积，按界面输入管子结构数据，按计算按据即可。-Suitable for heat exchanger industry, designed to calculate the low-fin tube external surface area, according to data input interface tube structure, according to data calculated.