Article(id=1322983226528116766, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1322983225697641327, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1235059200000, receivedDateStr=2009-02-20, revisedDate=1243267200000, revisedDateStr=2009-05-26, acceptedDate=null, acceptedDateStr=null, onlineDate=1793353381043, onlineDateStr=2026-10-30, pubDate=1266163200000, pubDateStr=2010-02-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793353381043, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793353381043, creator=13701087609, updateTime=1793353381043, updator=13701087609, issue=Issue{id=1322983225697641327, tenantId=1146029695717560320, journalId=1255847867265597444, year='2010', volume='24', issue='1', pageStart='1', pageEnd='80', issueExtLink='null', onlineDate='null', pubDate='1266163200000', pubDateStr='2010-02-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793353380846, creator='13701087609', updateTime=1793353380846, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=15, endPage=20, ext={EN=ArticleExt(id=1322983226721054751, articleId=1322983226528116766, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Numerical Simulation of Suspended RDX Dust Detonation in a Shock Tube, columnId=null, journalTitle=Chinese Journal of High Pressure Physics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Dust detonation of of RDX particles suspended in air was numerically studied with two-phase flow model. Behind the leading shock front of detonation, RDX particles were accelerated and heated by the gas flow. Melt of RDX occurred on the surface of particles. It was assumed that melted part of particle was stripped by the gas flow and decompostion reaction happened instantaneously, during the energy is released to support the propagation of detonation wave. Development and propagation of dust detonation with different particle sizes and different concentration was numerically simulated and the parameters of detonation were obtained. Distribution of pressure, temperature, velocity behind leading shock front was calculated. Parameters of dust detonation were determined. When the concntration of RDX dust is low, pulsating mode of peak pressure history of detonation front occured. Numerical simulation results showed that when the concentration of RDX dust was between 80 g/m3 and 150 g/m3, history of peak pressure of detonation wave front was regular pulsating. When the concentration was 70 g/m3, the pulsating was irregular.

, authors=Tao HONG, Wen-Zhou LIN, Cheng-Sen QIN, authorsList=Tao HONG, Wen-Zhou LIN, Cheng-Sen QIN, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322983226930769952, articleId=1322983226528116766, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=悬浮RDX炸药粉尘爆轰的数值模拟, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

用两相流模型对悬浮RDX炸药粉尘爆轰波进行了数值模拟。RDX炸药颗粒在爆轰波阵面后的高温高速气流中加速并升温,颗粒表面发生熔化。参考液滴在高速气流作用下剥离的效应,假设炸药熔化部分在高速气流的作用下发生剥离,破碎成极小的颗粒,瞬时发生分解反应,释放出能量支持爆轰波传播。数值模拟了在不同粒径和浓度的悬浮RDX炸药粉尘中爆轰波的发展与传播过程,得到了爆轰波流场中气-固两相的物理量分布,并确定了爆轰波参数。在较低的RDX粉尘浓度条件下,爆轰波阵面压力的峰值曲线出现振荡。当RDX粉尘浓度在80~150 g/m3时,数值模拟得到的爆轰波阵面压力峰值曲线的振荡是规则的;当RDX粉尘浓度为70 g/m3时,爆轰波阵面压力峰值曲线出现不规则振荡。

, authors=洪滔, 林文洲, 秦承森, authorsList=洪滔, 林文洲, 秦承森, authorCompany=null, correspAuthors=null, authorNote=

洪滔(1962—),男,博士,博士生导师,研究员,主要从事爆轰理论研究. E-mail:

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洪滔(1962—),男,博士,博士生导师,研究员,主要从事爆轰理论研究. E-mail:

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articleId=1322983226528116766, language=CN, orderNo=2, keyword=RDX粉尘), Keyword(id=1322983228398776376, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1322983226528116766, language=CN, orderNo=3, keyword=点火)], refs=[Reference(id=1322983230483345467, tenantId=1146029695717560320, journalId=1255847867265597444, articleId=1322983226528116766, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=null, journalName=null, refType=null, unstructuredReference=Gubin S A, Sichel M. 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悬浮RDX炸药粉尘爆轰的数值模拟
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洪滔 , 林文洲 , 秦承森
高压物理学报 | 2010,24(1): 15-20
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高压物理学报 | 2010 , 24 (1) : 15 -20
悬浮RDX炸药粉尘爆轰的数值模拟
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洪滔 , 林文洲, 秦承森
作者信息
  • 北京应用物理与计算数学研究所,北京 100088
作者简介:

洪滔(1962—),男,博士,博士生导师,研究员,主要从事爆轰理论研究. E-mail:

Numerical Simulation of Suspended RDX Dust Detonation in a Shock Tube
Tao HONG , Wen-Zhou LIN, Cheng-Sen QIN
Affiliations
  • Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
出版时间: 2010-02-15
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用两相流模型对悬浮RDX炸药粉尘爆轰波进行了数值模拟。RDX炸药颗粒在爆轰波阵面后的高温高速气流中加速并升温,颗粒表面发生熔化。参考液滴在高速气流作用下剥离的效应,假设炸药熔化部分在高速气流的作用下发生剥离,破碎成极小的颗粒,瞬时发生分解反应,释放出能量支持爆轰波传播。数值模拟了在不同粒径和浓度的悬浮RDX炸药粉尘中爆轰波的发展与传播过程,得到了爆轰波流场中气-固两相的物理量分布,并确定了爆轰波参数。在较低的RDX粉尘浓度条件下,爆轰波阵面压力的峰值曲线出现振荡。当RDX粉尘浓度在80~150 g/m3时,数值模拟得到的爆轰波阵面压力峰值曲线的振荡是规则的;当RDX粉尘浓度为70 g/m3时,爆轰波阵面压力峰值曲线出现不规则振荡。

两相爆轰  /  RDX粉尘  /  点火

Dust detonation of of RDX particles suspended in air was numerically studied with two-phase flow model. Behind the leading shock front of detonation, RDX particles were accelerated and heated by the gas flow. Melt of RDX occurred on the surface of particles. It was assumed that melted part of particle was stripped by the gas flow and decompostion reaction happened instantaneously, during the energy is released to support the propagation of detonation wave. Development and propagation of dust detonation with different particle sizes and different concentration was numerically simulated and the parameters of detonation were obtained. Distribution of pressure, temperature, velocity behind leading shock front was calculated. Parameters of dust detonation were determined. When the concntration of RDX dust is low, pulsating mode of peak pressure history of detonation front occured. Numerical simulation results showed that when the concentration of RDX dust was between 80 g/m3 and 150 g/m3, history of peak pressure of detonation wave front was regular pulsating. When the concentration was 70 g/m3, the pulsating was irregular.

two-phase detonation  /  RDX dust  /  ignition
洪滔, 林文洲, 秦承森. 悬浮RDX炸药粉尘爆轰的数值模拟. 高压物理学报, 2010 , 24 (1) : 15 -20 .
Tao HONG, Wen-Zhou LIN, Cheng-Sen QIN. Numerical Simulation of Suspended RDX Dust Detonation in a Shock Tube[J]. Chinese Journal of High Pressure Physics, 2010 , 24 (1) : 15 -20 .
  • 国家自然科学基金(10672025)
  • 国家自然科学基金委员会-中国工程物理研究院NSAF联合基金重点项目(10676120)
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Eidelmann S, Burcat A. Evolution of a Detonation Wave in a Cloud of Fuel Droplets: Part Ⅰ. Influence of Igniting Explosion[J]. AIAA J, 1980, 18(9): 1103-1109.
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Liu X L, Li H Z, Guo J G, et al. An Experimental Investigation of Deflagration to Detonation Transition (DDT) in Aluminum Dust-Air Mixture[J]. Explosion and Shock Waves, 1995, 15(3): 217-228. (in Chinese)
刘晓利, 李鸿志, 郭建国, 等. 铝粉-空气混合物燃烧转爆轰(DDT)过程的实验研究[J]. 爆炸与冲击, 1995, 15(3): 217-228.
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  • 接收时间:2009-02-20
  • 首发时间:2026-10-30
  • 出版时间:2010-02-15
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  • 收稿日期:2009-02-20
  • 修回日期:2009-05-26
基金
国家自然科学基金(10672025)
国家自然科学基金委员会-中国工程物理研究院NSAF联合基金重点项目(10676120)
作者信息
    北京应用物理与计算数学研究所,北京 100088
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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