Locating the probable ignition source in fire expertise

Florea, Gheorghe Daniel; Vlasin, Nicolae-Ioan

doi:10.1051/matecconf/202030500042

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…So, in conclusions, at the end of this paper, we did go through the basics of the numerics necessary for the numerical solution of the governing flow equations and understand that the fundamental aspects of numerical discretization can be put together to form various techniques for the numerical solution of the continuity, momentum, and energy equations. We can conclude that CFD is a growth industry [4], with an unlimited number of new applications and new ideas just waiting in the future. If in the elaborate formulas after some physical experiments were enrolled many empirical factors, the field of computational simulations using CFD techniques will require an increase in these factors.…”

Section: Discussionmentioning

confidence: 93%

The use of computational fluid dynamics applications to various flow problems

et al. 2022

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To deal with any such applications, it is a must to understand the basic form and nature of the governing equations of fluid dynamics. It is imperious to fully understand the basic of numerical discretization that can be applied in equations. This paper aims to present some CFD tools that are the starting point in solving problems related to the field of fluid dynamics. During this work, we will note that anyone CFD technique will not be appropriate for all problems and the diverse mathematical nature of partial differential equations will ensure that some algorithms will best work for hyperbolic equations and others will do best for elliptic equations. In addition, this paper examines precisely how CFD techniques can be used to solve various flow problems. In other words, CFD applications requires the simultaneous knowledge of some major aspects, such as the governing flow equations and their mathematical behavior, aspects of numerical discretization of partial differential equations, also known as finite differences or of integral equations, known as finite volumes. Computational fluid dynamics has a major impact on airplane design and soon to be a critical technology for aerodynamic design with the purpose to enhance the design process for any machine that deals with fluid flow.

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Section: Discussionmentioning

confidence: 93%

The use of computational fluid dynamics applications to various flow problems

et al. 2022

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“…Computer software for fire modelling will also be used to test possible scenarios with geometrical modeling, combustible / flammable properties of real case elements, as well as location of the fire ignition, whereafter, dynamics and propagation directions of the simulated fire must be compliant with the case under consideration [3].…”

Section: Introductionmentioning

confidence: 99%

Study of technical reasons for fire-burning vehicles

Lazarev

Bashkarev

Makovetskaya-Abramova

et al. 2023

E3S Web of Conf.

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The article presents the authors’ methodology for studying technical ignition causes of cars, with the establishment of the initial fire based on the signs and nature of temperature damage. What is more, subsequent development of the main scenario of fire occurrence is introduced. Modern control system is becoming larger and more complicated day by day and probability of system outage increases with it, so people urgently need to personalize the system of failure diagnostics to conduct real-time monitoring and malfunction diagnosis in production system and take necessary steps to improve its overall reliability and maintainability. According to the presented method of fire research, determination of the ignition causes is carried out by the method of successive elimination. Based on the functional features of the researchable object (a motor vehicle), established by expertise as an initial fire, the ignition of flammable liquid because of leakage from the fuel system, thermal development of the processes accompanying the emergency operation mode of the power grid could be possible ignition causes of the car. The authors pay special attention to the fire hazard of the electric system of a vehicle, which is determined by the fact that its individual elements can serve as a source of burning in case of an emergency in some functional chain. Establishment of initial fire causes increased complexity in connection with relatively small size of cars (especially light cars), fleetness of fires in vehicles and in case of failure to take recovery measures for burning in the initial stage and its development for the entire volume of the car. The results of applying the methodology were positively evaluated by independent expert companies.

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Imaging documentation in the on-site investigation of explosion/fire events

Manea¹,

Ghicioi²,

Tuhuț³

et al. 2022

MATEC Web Conf.

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Explosion/fire investigation is a procedure that involves significant resources of time and activities. The most important of the basic activities performed by the investigator/investigation team is the on-site research, which, if properly performed, allows the elaboration, foundation, and verification of hypotheses, while playing a defining role in establishing the final conclusions regarding the place of initiation and cause of the event. For these types of phenomena, the on-site investigation is hampered by the damage caused by the event, making it difficult to identify footprints or traces, or by the disruptive effects of the extinguishing products used. The investigation is carried out in the area of the outbreak as well as in all the areas where the fire spread and aims to examine the fire footprint, the set of traces, objects, and materials present in the burnt area, seen in interaction, both with each other and with the surrounding space and environment. Traditional verbal or written methods of presenting evidence or traces collected at the crime scene are no longer sufficient today, as technological advances are also evident in these areas. Important benefits include the coverage of the entire crime scene, which allows for complete and efficient documentation, using spherical or panoramic photography, or the use of spatial, three-dimensional scans. This paper aims to present the important contribution made by on-site documentation activities using SceneCam Forensic imaging scanning equipment, based on a high-resolution (HDR) image capture device capable of capturing spherical, 360° x 180° images at a resolution of up to 50 Megapixels in a single scanning operation (Spheron Cam VR).

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Locating the probable ignition source in fire expertise

Cited by 3 publications

References 6 publications

The use of computational fluid dynamics applications to various flow problems

The use of computational fluid dynamics applications to various flow problems

Study of technical reasons for fire-burning vehicles

Imaging documentation in the on-site investigation of explosion/fire events

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