火箭推进2017，Vol.43Issue(6)：32-37,6.
火箭煤油降阻技术研究
Investigation on drag-reduction technology of rocket kerosene
摘要
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. 8323 g/cm3 (20 ℃) , and its viscosity is ranging from 2. 17 mPa·s to 2. 77 mPa·s (20 ℃) . Factors influen-cing 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 reduc-tion 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 kero-sene 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.关键词
火箭煤油/降阻剂/流阻/JZM-7Key words
rocket kerosene/drag reducer/flow resistance/JZM-7分类
航空航天引用本文复制引用
杜宗罡,朱成财,吴金,单世群,于忻立,史雪梅,符全军,韩伟..火箭煤油降阻技术研究[J].火箭推进,2017,43(6):32-37,6.基金项目
装发联合基金项目 (6141B06260101) （6141B06260101）
