【摘要】：約束空間爆炸載荷主要包含瞬態(tài)沖擊波和持續(xù)時間較長的準靜態(tài)超壓,為了研究泄壓口大小對約束空間爆炸準靜態(tài)超壓載荷的影響規(guī)律,采用三階WENO有限差分格式,編寫了約束空間內(nèi)炸藥爆炸沖擊波三維數(shù)值計算程序。利用Sod激波管、雙爆轟波碰撞、激波與熵波相互作用等經(jīng)典算例驗證了數(shù)值程序的可靠性。基于驗證的程序開展了帶有泄壓口的約束空間內(nèi)爆炸載荷數(shù)值計算。在分析數(shù)值計算結(jié)果基礎上,提出了描述準靜態(tài)超壓載荷簡化理論公式,該理論公式與數(shù)值計算結(jié)果吻合較好。研究結(jié)果可為工程抗爆結(jié)構設計提供一定的參考和指導。
[Abstract]:The explosive load in confined space mainly includes transient shock wave and quasi-static overpressure with long duration. In order to study the effect of pressure relief port on quasi-static overpressure load in confined space explosion, a third-order WENO finite difference scheme is adopted. A three-dimensional numerical calculation program for explosive explosion shock wave in confined space has been developed. The reliability of the numerical program is verified by using Sod shock tube, double detonation wave collision and interaction between shock wave and entropy wave. Based on the verification program, the numerical calculation of the explosion load in the constrained space with the outlet is carried out. Based on the analysis of numerical results, a simplified theoretical formula for describing quasi static overpressure loads is proposed, which is in good agreement with the numerical results. The research results can provide some reference and guidance for the design of engineering anti-explosion structure.
【作者單位】： 武漢理工大學高性能艦船技術教育部重點實驗室;武漢理工大學交通學院船舶海洋與結(jié)構工程系;
【基金】：國家自然科學基金(51409202) 國防基礎研究項目(B1420133057) 中央高校基本科研業(yè)務費(2016-YB-016)
【分類號】：O38

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