Modified porosity approach and laminar flamelet modelling for advanced simulation of accidental explosions

Vianna, Sávio S.V.; Cant, RS

doi:10.1016/j.jlp.2009.08.002

Cited by 18 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The safety distance from a vapor cloud rapid deflagration was investigated by Li and Hao [7] using a numerical tool. In the context of a gas cloud, numerical simulations in environments with complex geometry were performed by Vianna and Cant [8], Ferreira and Vianna [9], [10], and Quaresma et al [11]. These researchers used a computational tool with meshes based on Porosity Distributed Resistance (PDR).…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of the explosion of gas tanks using computational fluid dynamics

Moura

Neto

Doz

2023

Rev. IBRACON Estrut. Mater.

View full text Add to dashboard Cite

Buildings are composed of several systems, each with specific designs and regulations to ensure that constructions are safe and viable. Many residential, commercial, and industrial buildings have systems with gas central storage, which must be subjected to strict safety criteria to avoid accidents. In addition to the safety mechanisms provided by manufacturers, designers of these gas central storage must consider other devices to reduce explosion risk and mitigate the damaging blast effects. Explosions are physical-chemical phenomena that are characterized by the sudden expansion of a material and, consequently, energy release. When an accidental explosion occurs, much damage is caused by the shock wave and fragments. In the case of pressure vessels, a mechanical explosion can occur. Studying this explosion is essential to developing a more reliable, safe design for surrounding buildings and its users. This work aims to study the effects of gas tank explosions. In this study, the Autodyn computational tool based on fluid dynamics (CFD) is used. This software allows the modeling of complex explosion scenarios and the evaluation of blast wave parameters. For each numerical model, the overpressure levels outdoors and indoors are evaluated. The results indicated how the wave overpressures are distributed in different scenarios, and from them, it was possible to analyze the damaging levels.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical analysis of the explosion of gas tanks using computational fluid dynamics

Moura

Neto

Doz

2023

Rev. IBRACON Estrut. Mater.

View full text Add to dashboard Cite

show abstract

“…So few literatures have given the numerical simulation method of the explosion process in vessels (Vianna & Cant, 2010;Young & Daniel, 2010), and even fewer of those can solve the dynamic response of the ejected structure. And the explosion caused by residual pressure is not as complex as the one caused by high pressure, which has a relatively low pressure value and no chemical reaction in the pressure vessel.…”

Section: Introductionmentioning

confidence: 99%