{"title":"Pocket Model with a Tetrahedral Cell for Aluminum Agglomeration in Composite Propellants","authors":"","doi":"10.1134/s0010508223060114","DOIUrl":null,"url":null,"abstract":"<span> <h3>Abstract</h3> <p>A tetrahedral structure model has been proposed to estimate the size of metal agglomerates during combustion of a composite solid propellant. According to this model, oxidizer particles are located at the vertices of a regular tetrahedron and the internal volume of the pyramid is occupied by a mixture of a fuel-binder and metal—the so-called “pocket." Experimental data are compared with the results of calculations using the tetrahedral model, the Cohen model, and the empirical correlations proposed by Hermsen, Salita, Beckstead, Grigoriev, and Duterque. The comparison was made for a composite propellant containing ammonium perchlorate, a binder, and aluminum. It is shown that in some cases the tetrahedral model better predicts the diameter of agglomerates than the other models.</p> </span>","PeriodicalId":10509,"journal":{"name":"Combustion, Explosion, and Shock Waves","volume":"84 1","pages":""},"PeriodicalIF":0.9000,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Combustion, Explosion, and Shock Waves","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1134/s0010508223060114","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
A tetrahedral structure model has been proposed to estimate the size of metal agglomerates during combustion of a composite solid propellant. According to this model, oxidizer particles are located at the vertices of a regular tetrahedron and the internal volume of the pyramid is occupied by a mixture of a fuel-binder and metal—the so-called “pocket." Experimental data are compared with the results of calculations using the tetrahedral model, the Cohen model, and the empirical correlations proposed by Hermsen, Salita, Beckstead, Grigoriev, and Duterque. The comparison was made for a composite propellant containing ammonium perchlorate, a binder, and aluminum. It is shown that in some cases the tetrahedral model better predicts the diameter of agglomerates than the other models.
期刊介绍：
Combustion, Explosion, and Shock Waves a peer reviewed journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The journal presents top-level studies in the physics and chemistry of combustion and detonation processes, structural and chemical transformation of matter in shock and detonation waves, and related phenomena. Each issue contains valuable information on initiation of detonation in condensed and gaseous phases, environmental consequences of combustion and explosion, engine and power unit combustion, production of new materials by shock and detonation waves, explosion welding, explosive compaction of powders, dynamic responses of materials and constructions, and hypervelocity impact.
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