The FDM numerical analytic method is applied to calculate the fin efficiency of elliptic tube with rectangular fins on which the disturbing holes were dug by using additional source term technique.
采用有限差分数值分析方法，应用温度逐次更新处理技术对不同扰流孔下的椭圆管矩形翅片的肋效率进行计算。
The elliptical tube with rectangular plate fin, which is usually called double row tube, is one kind of basic heat exchange element for direct air cooled condensers.
矩形翅片椭圆管，即双排管是直接空冷凝汽器的一种基本换热元件。
The elliptical tube with rectangular plate fin, which is usually called double row tube, is one kind of basic heat exchange element for direct air cooled condensers.
矩形板翅式，这通常被称为双列管，椭圆管是一种直接空冷凝汽器热交换的基本元素。
The elliptical tube with rectangular plate fin, which is usually called double row tube, is one kind of basic heat exchange element for direct air cooled condensers.
矩形板翅式，这通常被称为双列管，椭圆管是一种直接空冷凝汽器热交换的基本元素。
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