航天推进技术研究院主办
[1]杜宗罡,朱成财,吴金,等.火箭煤油降阻技术研究[J].火箭推进,2017,43(06):32-37.
DU Zonggang,ZHU Chengcai,WU Jin,et al.Investigation on drag-reduction technology of rocket kerosene[J].Journal of Rocket Propulsion,2017,43(06):32-37.
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DU Zonggang,ZHU Chengcai,WU Jin,et al.Investigation on drag-reduction technology of rocket kerosene[J].Journal of Rocket Propulsion,2017,43(06):32-37.
火箭煤油降阻技术研究
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
43
期数:
2017年06期
页码:
32-37
栏目:
研究与设计
出版日期:
2017-12-30
- Title:
- Investigation on drag-reduction technology of rocket kerosene
- 文章编号:
- 1672-9374(2017)06-0032-06
- Keywords:
- rocket kerosene; drag reducer; flow resistance; JZM-7
- 分类号:
- V511-34
- 文献标志码:
- A
- 摘要:
- 对3种火箭降阻煤油在管路中流阻特性进行试验研究。与火箭煤油相比,试验用降阻煤油的密度相近(20 ℃,0.832 3 g/cm3),粘度升高(20 ℃,2.17～2.77 mPa·s)。通过管路流阻特性理论计算和试验,验证了降阻煤油在流阻测试试验系统各组件时的实际降阻效果,并对影响降阻效果的因素包括降阻煤油类型、直管管径、流体流速及降阻剂浓度等进行试验考察。试验结果表明,使用相同降阻煤油,在同样流量下,直管管径越小,流速越高,降阻率越高; 在同样管径下,流速越高,降阻率先快速升高后缓慢降低; 使用相同降阻剂,随着煤油中降阻剂浓度的升高,降阻效率先快速升高后趋于平缓; 3种降阻煤油中配方为JZM-7的降阻效率最高,与火箭煤油相比,JZM-7在Φ4直管中流速为54.748 m/s时降阻率为75.05%。
- Abstract:
- The characteristics of flow resistance in pipeline of kerosene with three drag reducers was researched by experiments. The density of drag reducing kerosene(DRK)is 0.832 3 g/cm3(20 ℃), and its viscosity is ranging from 2.17 mPa·s to 2.77 mPa·s(20 ℃). Factors influencing drag reduction, such as types of DRK, concentration of drag reducers, straight pipe diameter, flow velocity, are discussed and evaluated. The results as follows:1)under the condition of same flux, the smaller the diameter of the straight pipe is, the higher the flow velocity and the drag reduction rate become; 2)under the condition of same diameter, the drag reduction rate rises fast and then descends slowly as the flow velocity rises higher; 3)with the same drag reducer, the drag reduction rate rises quickly and then becomes flatting with the increase of concentration of drag reducer in rocket kerosene; 4)JZM-7 has the highest drag reduction rate among the three types of drag reduction kerosene formulas. Compared with pure kerosene, the drag reduction rate of JZM-7 is 75.05% at the flow velocity of 54.748 m/s in Φ4 straight pipe.
参考文献/References:
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备注/Memo
收稿日期:2016-10-11
基金项目:装发联合基金项目(6141B06260101)
作者简介: 杜宗罡(1971—),男,研究员,研究领域为液体推进剂
更新日期/Last Update:
1900-01-01