【摘要】 使用了适定性的数学理论———特征线方法 ,对蒸汽发生器中的一维瞬态两相流传热进行了分析研究 ,目的是为了了解其数学物理本质。根据分析结果 ,蒸汽发生器二次侧的两相流传热是适定的。同时 ,根据这个结果分析得到了求解蒸汽发生器一维传热方程的逆风有限差分格式是稳定的。更多还原

【Abstract】 The one dimensional, transient, two phase heat transfer in steam generator (SG)is investigated by employing the mathematical theorems on well posedness, the method of characteristics. The main purpose is to study the mathematical and physical nature of this problem. The two phase heat transfer in the SG secondary side, according to the analytical result, is well posed. At the same time, based on the result, it is concluded that the upwind finite difference scheme for solving the one dimensional heat transfer equation for SG is stable.更多还原