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建立了一个包含乘员、仪器设备和简单生活设施在内的载人航天器座舱物理模型,采用房间零方程湍流模型模拟了座舱工作区的空气龄分布。送风模式为舱顶两侧45°斜送风,风口布置采用了连续对称布置、间隔对称布置和间隔交错布置3种方案。模拟结果显示,连续对称布置会产生分叉现象,不建议采用;间隔交错布置优于间隔对称布置,并在送风速度为1．1 m／s左右时换气效率最高;在舱壁附近有乘员长期工作的情况下,乘员呼吸区的空气龄偏大,建议采用个性化送风来解决此问题。
A physical model of cockpit manned spacecraft including occupant, equipment and simple living facilities was established. The air age distribution in cockpit working area was simulated by zero-compartment turbulence model. The mode of air supply is 45 ° inclined air supply on both sides of the tank top. The air outlet is arranged in a symmetrical arrangement with symmetrical arrangement of intervals and staggered arrangement of intervals. The simulation results show that the continuous and symmetrical arrangement will produce bifurcation, which is not recommended. The staggered arrangement is better than the symmetrical arrangement and the ventilation efficiency is the highest when the air velocity is about 1.1 m / s. In the vicinity of the bulkhead In the case of long-term crew work, the air length of the passenger breathing zone is too large. It is suggested that a personalized air supply be used to solve this problem.