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用Ｇａｌｅｒｋｉｎ加权余量法原理推算出太阳棒针翅二维稳定导热的有限元计算式，用其计算出了太阳棒管针翅的二维温度分布，由于针翅结构合理，计算值与实测值相符。
Using the principle of Galerkin weighted residual method, the two-dimensional steady thermal conductivity of the sun-stick pin fin is calculated. The two-dimensional temperature distribution of the sun-stick pin fin is calculated. Because the pin-fin structure is reasonable, the calculated value agrees with the measured value .