基于普适的气液混合物流动能量方程,推导出了用于天然气-凝析液两相管流稳态计算的显式温降计算式,该式考虑了沿线换热,Joule-Thomson效应、地形起伏的影响.由此讨论了文献关于两相流温降计算的一些观点.取消了温度迭代循环,用两相流温降显式计算式替代焓平衡方程参与水力、热力耦合计算,提高了算法的效率.经与OLGA计算结果比较,本文提出的模氆和算法能够较准确地计算天然气-凝析液管流温度.
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