نتایج جستجو برای: vapor explosion
تعداد نتایج: 53532 فیلتر نتایج به سال:
Background and purpose Many efforts have been made to use chemical components as weapons throughout history until the Germans first employed chlorine gas cylinders in April 1915 at Ypres Belgium against French and Canadian soldiers. Leaving 5,000 dead and 15,000 injured, it was the first practical application of chemical agents. The Geneva Protocol in June 1925, which was an attempt to pre...
In the present paper thecompressibleflowoftheunderwaterexplosionhasbeensimulatedusing One-fluid method along with the Eulerian-Lagrangian ALE method. Besides, the exact Riemann solver and an appropriate equation of state which is consistent with the thermodynamic behavior of water in underwater explosion, is employed. The two dimensional underwater explosion problem near a flat plate is mode...
در این مقاله اثرات نشت احتمالی گاز هیدروژن برای پیشگیری از وقوع حادثه، در یک پلنت تولید گاز هیدروژن مورد مطالعه قرار گرفته است. برای شبیهسازی از نرم افزار PHAST نسخه 1/53/6 استفاده شده و به بررسی پدیدههای انفجار ابر بخار (وی سی ای) و موج ناشی از انفجار (مولتی انرژی) که در صورت انفجار هیدروژن رخ میدهد، پرداخته شده است. این تحقیق با میزان ضریب مرگ و میر(100%) و سطح پایداری جوی (B, D, E) و ...
In this work, a more accurate prediction of liquid evaporation flux has been achieved. The statistical rate theory approach, which is recently introduced by Ward and Fang and exact estimation of vapor pressure in the layer adjacent to the liquid–vapor interface have been used for prediction of this flux. Firstly, the existence of an equilibrium layer adjacent to the liquid-vapor interface ...
Background and Objective: Ethylene oxide (EO) is a very toxic and dangerous substance with a high potential for explosion and fire. Ethylene oxide units are among the most hazardous units in petrochemical industries. This study was designed to analyze and model the consequences of ethylene oxide storage tanks explosion in one of Iran's petrochemical industries. Materials and Methods: In this s...
Background and aims: Accidents happened as a result of LPG leakage emphasizes the importance of the consequence analysis of fire and explosion in LPG storage tanks. The purpose of this study is to analysis the consequences of fire and explosion in a cylindrical LPG storage tank in an oil and gas industry. Method: In this analytical study, four possible failure scenarios including 1...
Earthquake and explosion are destructive dynamic forces. These forces can cause severe damage to the structure due to the time-dependent nature of the impact. One of the most important parameters for checking the stability of structures is the study of their buckling modes. The stability check has a direct relationship with the critical load of the columns. In this paper, the effects of simulta...
In this study, the cavitation effect induced by two charges in underwater explosions near free surfaces is numerical researched dimensional compressible multiphase fluids based on a four-equation system with phase transition model. The occurrence of generation, development, and collapse two-charge can be captured directly. detailed density, pressure, vapor volume fraction contours during intera...
Laboratory of Developmental Chronobiology spora, posttranscriptional mechanisms (e.g., nuclear Pediatric Service entry, phosphorylation, and proteolysis) appear to conMassachusetts General Hospital tribute to the appropriate time delays in the molecular and Harvard Medical School oscillations necessary to generate a 24 hr clock (see Boston, Massachusetts 02114 references in Price et al., 1998)....
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