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[1]胡洪波,翁春生.铝粉浓度对汽油-纳米铝粉悬浮液滴多相爆轰影响的一维数值计算[J].火箭推进,2011,37(05):47-51.
　HU Hong-bo,WENG Chun-sheng.One dimensional numerical calculation for influence of aluminum concentration on multiphase detonation of suspende gasoline/nano-aluminum-powder liquid drops[J].Journal of Rocket Propulsion,2011,37(05):47-51.
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铝粉浓度对汽油-纳米铝粉悬浮液滴多相爆轰影响的一维数值计算

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 37 期数: 2011年05期 页码: 47-51 栏目: 燃料与推进剂 出版日期: 2011-10-15
Title:
One dimensional numerical calculation for influence of aluminum concentration on multiphase detonation of suspende gasoline/nano-aluminum-powder liquid drops
文章编号:
1672-9374(2011)05-0047-06
作者:
胡洪波; 翁春生
南京理工大学瞬态物理国家重点实验室，江苏 南京 210094
Author(s):
HU Hong-bo;  WENG Chun-sheng
National Key Lab of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China
关键词:
爆轰; 多相流; 纳米铝粉; CE/SE方法; 数值计算
Keywords:
detonation;  multiphase flow;  nano-aluminum-powder;  CE/SE method;  numerical calculation
分类号:
V51-34
文献标志码:
A
摘要:
采用带化学反应的一维多相流模型，运用CE/SE数值计算方法和处理源项的四阶龙格-库塔方法对爆轰管内汽油/纳米铝粉悬浮液滴、空气混合物的多相爆轰过程进行了数值模拟，讨论了悬浮液滴中纳米铝粉浓度对爆轰参数及燃烧转爆轰过程的影响。数值结果表明，添加纳米铝粉后，稳定传播的爆轰波速度变大；随着纳米铝粉浓度的增加，爆轰波压力峰值与平台压力都增大，但两者增大的速率不同；DDT距离先缩短后增长，在体积浓度为1%附近有最短距离。
Abstract:
Multiphase detonation process of suspended gasoline/nano-aluminum-powder liquid drops and air mixture in a circular tube is numerically simulated in this paper. The multi-fluid model with chemical reaction is used to treat the liquid, aluminum and the oxidizer under one dimension Euler coordinates. The conservation element and solution element (CE/SE) based on rectangular mesh method is applied to solving the controlled equations in which the source items are dealt with fourth-order Runge-Kutta method. The influence of aluminum concentration on detonation parameter and process of deflagration to detonation is discussed. The results of numerical calculation indicate that the velocity of detonation wave increases when nano-aluminum-powder is added; with the increasing of nano-aluminum-powder concentration, the peak pressure and plateau pressure of detonation wave increase with different increased rates; the DDT distance shortens at the beginning and then increases; and there is a shortest distance near the concentration of 1%.

参考文献/References:

[1]YETTER R A , RISHA GA, SON S F. Metal particle combustion and nanotechnology[J]. Proceedings of the Combustion Institute, 2009, 32 (2): 1819-1838.
[2]TYAGI H, PHELAN P E. Increased hot-plate ignition probability for nanoparticle-laden diesel fuel[J]. Nano Let- ters, 2008, 8 (5): 1410-1416.
[3]TEPPER F, KALEDIN L A. Nano aluminum as a com- bustion accelerant for kerosene in air breathing systems, AIAA2001-0521 [R]. USA: AIAA, 2001.
[4]PALASZEWSKI B, JURNS J, BREISACHER K, et al. Metalized gelled propellants combustion experiments in a pulse detonation engine, AIAA2004-4191[R]. USA: AIAA, 2004.

备注/Memo

收稿日期：2011-04-14；修回日期：2011-06-04
基金项目：高等学校博士学科点专项科研基金(20093219110037)；江苏省研究生培养创新工程(CXLX11_0249)
作者简介：胡洪波（1987—），男，博士研究生，研究领域为新概念发动机技术

更新日期/Last Update: 1900-01-01