The practical calculation results show, there is an optimal steamvelocity, which is decreasing along with pressure-and density-increasing.
实例计算结果表明，存在最佳的蒸汽流速，其随压力升高、密度增大而减小。
2
Based on the theory of two-phase flow, the mechanism of the condenser's steam resistance which is influenced by the steamvelocity field at the condenser's throat outlet was analyzed.
基于两相流的有关理论，分析了凝汽器喉部出口蒸汽流场对凝汽器汽阻影响的机理。
3
The causes behind breakage of the catalyst are excessive sodium and vanadium content in the feed oil, excessively high regeneration temperature and excessively high steamvelocity in riser pipe.