نتایج جستجو برای: fire dynamics simulator fds

تعداد نتایج: 509498  

Journal: :Advances in Engineering Software 2014
Z. Xu X. Z. Lu H. Guan C. Chen A. Z. Ren

Smoke is a leading cause of death in fire. To minimize the potential harm from the smoke hazards in the course of a fire, a rational virtual reality (VR)-based fire training simulator taking full account of the various aspects of smoke hazards has been developed and is described herein. In this simulator, a visualization technique based on volume rendering and fire dynamics data has been especi...

2014
Jean Paul Dukuzumuremyi Beiji Zou Damien Hanyurwimfura

Many researchers are being involved in fire detection using camera images as information data. However earlier researches have not paid attention to the determination of the type of fire (naked or smoldering). This paper proposes an improved fire detection method based on the image features that are taken as a feed to a rough set information system (RSIS) in order to not only determine the type...

Journal: :journal of agricultural science and technology 2014
r. jahdi a. a. darvishsefat v. etemad m. a. mostafavi

lack of fire behavior studies and the immediate needs posed by the extent of the fire problem in forests of iran require that extensive studies be conducted to develop models to predict fire behavior in the region.in this study, farsite fire area simulator was applied to simulate spread and behavior of two real fires that had occurred in northern forests of iran during 2010 summer and fall seas...

Journal: :JCP 2012
Haowei Yao Zhe Zhao Dong Liang Song-yang Liu Liang Zhang

Fire Dynamics Simulator parallel computing program has been compiled based on Message Passing Interface. The fire flow field is divided into several segments and each segment is allocated to the corresponding node to calculate. The calculation shows that computing time has been significantly reduced as the amount of processors increase. The procedure and method that the text has established is ...

2003
Raul Cristian Muresan

RetinotopicNET is an efficient simulator for neural architectures with retinotopic-like receptive fields. The system has two main characteristics: it is event-driven and it takes advantage of the retinotopic arrangement in the receptive fields. The dynamics of the simulator are driven by the spike events of the simple integrate-and-fire neurons. By using an implicit synaptic rule to represent t...

2010
George D. Papadopoulos Fotini-Niovi Pavlidou

Phenomena in ecosystems such as forest fires, oil spills, tornados, etc., are complex processes both in time and space. Understanding their dynamics in order to predict their future states is a challenging procedure involving the propagation of several events concerning, e.g. the transfer of energy or material. A common solution used to study such phenomena is the utilization of discrete event ...

Journal: :Advances in Engineering Software 2022

• An engineering CFD model for fire spread on wood cribs is demonstrated. Fire characterised at stick-by-stick level with least 2 × cells. Global matching of heat release rate, spread, burn-away and flame temperatures. Approximate linear regression between different modes incident radiant fluxes. Heat rate more sensitive to than stick burning rate. The temperature heterogeneity due in large ope...

2015
Quanlai Zhao Guofeng Su Hongyong Yuan

In this paper, we use the fast marching method to solve the emergency evacuation in high-rise building fire. This method is a numerical method which is used to solve the Eikonal equation in rectangular grids. As we know, building fires are very common in the world. They have caused a great deal of personnel casualty and property losses. How to reduce the casualty and ensure the life safety of t...

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