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从加热面方向角、流动速率、过冷度、绝对压力等几个方面对地面上模拟微重力下两相流动沸腾换热的条件进行了分析．认为当沸腾试验段入口流动速率、过冷度、绝对压力及外加热流密度等相同时，在流速达到一定值后，如果向上与向下流试验段出口处的温度、压力、含汽率等基本一样，两者换热系数大致相当，且试验段沿程各点壁温无突变、试验段出口含汽率满足保证核态沸腾正常进行所必须的下限等，那么就构成了地面模拟的条件．
The conditions of two-phase flow boiling heat transfer under the simulated microgravity on the ground were analyzed from the aspect of the heating surface, flow rate, undercooling and absolute pressure. It is considered that when the flow rate, subcooling degree, absolute pressure and external heat flux are the same in the boiling test section, after the flow rate reaches a certain value, if the temperature, pressure and vapor content at the outlet of the upward and downward flow test section are basically the same , The heat transfer coefficients of both are roughly equivalent, and there is no sudden change in the wall temperature at each point of the test section. The vapor content at the outlet of the test section meets the minimum necessary to ensure normal nucleate boiling and so on, thus constituting the ground simulation conditions.