介质差异对靶场燃料加注泵工作特性的影响
发布时间：2018-09-05 20:03
【摘要】：采用CFD方法研究了靶场燃料加注泵在输送推进剂(N2O4)和清水时的工作特性差异,并从加注泵内部流场分布及介质物理性质的角度分析了造成工作特性差异的原因。研究结果表明:(1)输送推进剂与清水时泵的扬程和效率曲线变化不大,但对于精确加注,该变化应引起适当注意;(2)输送推进剂时泵的功率曲线高于输送清水时,且其差距随着流量的增加而增加;(3)输送推进剂时泵的温升曲线高于输送清水时,且前者随着流量增加的增速大于后者,但两者的最高温升均小于1℃。本研究对与加注泵相关的计算选型工作具有重要的指导意义。
[Abstract]:The CFD method was used to study the difference of the working characteristics of the firing range fuel filling pump in conveying propellant (N2O4) and clear water, and the causes of the difference were analyzed from the point of view of the flow field distribution and the physical properties of the medium inside the pump. The results show that: (1) the pump lift and efficiency curves have little change when conveying propellant and clear water, but the change of pump power curve should be paid due attention to for accurate injection; (2) the power curve of pump is higher than that of conveying clear water when conveying propellants. The difference increases with the increase of flow rate. (3) the temperature rise curve of pump is higher than that of pure water, and the growth rate of the former is larger than that of the latter with the increase of flow rate, but the maximum temperature rise of both is less than 1 鈩，
本文编号：2225324
[Abstract]:The CFD method was used to study the difference of the working characteristics of the firing range fuel filling pump in conveying propellant (N2O4) and clear water, and the causes of the difference were analyzed from the point of view of the flow field distribution and the physical properties of the medium inside the pump. The results show that: (1) the pump lift and efficiency curves have little change when conveying propellant and clear water, but the change of pump power curve should be paid due attention to for accurate injection; (2) the power curve of pump is higher than that of conveying clear water when conveying propellants. The difference increases with the increase of flow rate. (3) the temperature rise curve of pump is higher than that of pure water, and the growth rate of the former is larger than that of the latter with the increase of flow rate, but the maximum temperature rise of both is less than 1 鈩，
本文编号：2225324
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