• 제목/요약/키워드: Simulation of fire

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화재시뮬레이션 (Fire Simulations)

  • 김상문;윤상열;김경천
    • 한국가시화정보학회지
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    • 제4권1호
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    • pp.8-13
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    • 2006
  • Fire simulation has been developed for decades to analyze fire cases and provide a tool to study fundamental fire dynamics and combustion. There are three way of fire simulation which are a full scale simulation, an experimental simulation and a computational simulation. In case of a full scale simulation, because a higher cost, a higher risk, more efforts are needed, a demand for it has been decreased. But recently a demand for an experimental simulation and a computational simulation has been increased. A computational simulation has several advantages; lower cost, short period, many case studies, more visual results, a quantitative result and etc. FDS(Fire Dynamics Simulator) which has been developed in BFRL(Building and Fire Research Laboratory), NIST(National Institute of Standards and Technology) is a popular world wide code for fire simulation. Lack of accurate predictions by the model could lead to erroneous conclusions with regard to fire safety. All results should be evaluated by the informed judgment of the qualified user.

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방화셔터와 피난계단이 존재하는 실내 환경의 화재 컴퓨터 시뮬레이션 (A Fire Computer Simulation of Inner Space with Fire Shutters and Refuge Stairs)

  • 유두열;양정민
    • 한국전자통신학회논문지
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    • 제8권11호
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    • pp.1617-1624
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    • 2013
  • 논문에서는 방화셔터와 피난계단이 존재하는 실내 환경의 화재 시뮬레이션을 실시하여 방화셔터와 화재 확산 사이의 관계를 분석하였다. 화재 시뮬레이션용 상용 소프트웨어인 FDS(Fire Dynamics Simulator)를 사용하여 가상으로 설정한 실내 로비에서 화재 규모와 방화셔터의 개폐 여부를 변화시켜 가면서 모의실험을 실시하였다. 실험을 통해 화재실 벽면과 계단 입구의 온도 변화, 이산화탄소 농도 변화, 연기의 확산 등의 변수들을 구하고 결과를 검토하였다. 피난계단에서 온도와 이산화탄소의 분포는 화재규모와 개구부의 개폐 여부와 별 상관이 없으나, 방화셔터의 부분 하강이 연기의 확산을 막고 있음을 알 수 있었다.

산불 전파의 수치 시뮬레이션 (Numerical Simulation of a Forest Fire Spread)

  • 이명성;원찬식;허남건
    • 설비공학논문집
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    • 제20권2호
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    • pp.137-143
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    • 2008
  • In the present study, a forest fire spread was simulated with a three-dimensional, fully-transient, physics-based, computer simulation program. Physics-based fire simulation is based on the governing equations of fluid dynamics, combustion and heat transfer. The focus of the present study is to perform parametric study to simulate fire spread through flat and inclined wildland with vegetative fuels like trees or grass. The fire simulation was performed in the range of the wind speeds and degrees of inclination. From the results, the effect of the various parameters of the forest fire on the fire spread behavior was analyzed for the future use of the simulation in the prediction of fire behavior in the complex terrain.

선박화재 시뮬레이션을 위한 도구 분석과 적용에 관한 연구 (A Study on the Analysis and Application of the Fire Simulation Tools for Ships)

  • 최진;이동곤;박범진
    • 대한조선학회논문집
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    • 제44권2호
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    • pp.83-92
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    • 2007
  • To improve the fire safety of ships, it is required to prepare the systematic design guideline for fire protection and the way of assessing fire characteristics quantitatively. The introduction of simulation technique based on fire engineering is useful to assess fire safety performance quantitatively. Fire simulation tools are currently developing with U.S.A., Europe and Japan as a leader. Most of current fire simulation tools were developed for building or inland structure. Therefore it is required validation process and development of data base to apply maritime environments. In this paper, I/O parameters of simulation tools such as CFAST and BRI2002 of zone model and FDS and KFX of field model analysed, and designed data base considering maritime environment. The fire simulation for the pool fire model of engine room and its adjacent compartments is performed and evaluated the results.

실대화재시험의 연소성능 예측을 위한 시뮬레이션 적용 (Applying to simulation analysis for predicting the combustion performance of Large scale fire tests)

  • 김운형;박계원;정재군;임홍순
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 2008년도 추계학술논문발표회 논문집
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    • pp.86-92
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    • 2008
  • On this study, modeling works using Cone tools simulation method were made for the prediction of real fire test results such as small to large scale fire tests including ISO 5660-1, EN 13823 and ISO 13784-1. For those simulation prediction, three real fire tests were performed in advance. In addition, Real data from ISO 5660-1 test were applied to this simulation modeling. Finally, the comparative analysis between Real fire tests and Simulation results were made out. Also, the Classifying evaluation by EURO Class using EN 13501-1 were taken off.

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효율적인 육군항공과 포병자산의 통합화력 운용방안 판단을 위한 모델링 방법론 및 분석 (Modeling and Analysis for Efficient Joint Combat Fire Operation of Army Artillery and Army Aviation)

  • 임종원;권혁래;이태억
    • 한국시뮬레이션학회논문지
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    • 제23권2호
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    • pp.47-55
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    • 2014
  • 한국군의 분석용 시뮬레이션모델을 포함한 대개의 전투시뮬레이션 모델들은 통합화력과 같은 복잡한 전투상황을 모델링, 분석하기에는 어려움이 많다. 본 연구에서는 Fire Eagle과 같은 지상화력과 육군항공의 통합화력전투훈련의 분석을 위한 모델링 및 시뮬레이션 요구사항을 분석한다. 이에 기반하여 Fire Eagle을 위한 시뮬레이션 모델을 제안, 개발하고 통합화력을 개선하기 위한 전략을 도출한다. 이 시뮬레이션 모델을 이용하여 특정 작전계획 및 시나리오의 효과성을 분석한다. 이 시뮬레이션 실험 결과를 바탕으로 효율적이고 효과적인 작전계획을 개발하는 시범을 보인다.

국내 성능위주설계의 시행현황 분석 - 화재시나리오 및 시뮬레이션을 중심으로 (Analysis on the Implementation Status of Domestic PBD (Performance Based Design) - Focusing on the Fire Scenario and Simulation)

  • 안성호;문선여;류일현;최준호;황철홍
    • 한국안전학회지
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    • 제32권5호
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    • pp.32-40
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    • 2017
  • The current status of Performance-Based Design (PBD) implemented in 4 wide areas (Seoul, Gyeonggi, Incheon and Busan) over the past 5 years was reviewed with regard to the number of PBD implementation and target buildings. Then, detailed status related to fire scenarios, input information for fire simulation, and grid size were analyzed with the pre-review for the PBD. As a result, the domestic PBD was mainly applied to the mixed occupancy. In the fire simulations performed on the identical fire scenario and fire space, the maximum heat release rate (HRR) varied significantly depending on the PBD designer. Various combustibles were also considered for the identical fire source, and their combustion properties also showed considerable uncertainty. In addition, the applicability of accurate input information for predictive models of heat and smoke detectors was examined. Finally, the average grid size for the fire simulation using Fire Dynamics Simulator (FDS) was analyzed, and the improvement of PBD to minimize designer dependency was proposed.

국내화재통계 및 컴퓨터 시뮬레이션에 의한 방화화재 특성에 관한 연구 (A Study on the Arson Fire Characteristics based on Domestic Fire Statistics and Computer Simulation)

  • 최진;강경식
    • 대한안전경영과학회지
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    • 제10권1호
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    • pp.1-10
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    • 2008
  • With the development of the Korean economy, the number of arson fire has been radically increased and become a huge problem and issue in Korea Society for last several decades. This study is to establish the fire life safety strategy regarding the arson fire through researching domestic fire statistics and performing the computer simulation based on fire scenarios with cutting edge techniques and methods for fire characteristics and fire dynamic. In addition, to design the fire life safety strategy depending on the arson fire pattern, the flow and characteristics of fire flames and smoke are analyzed by the computer modeling.

화재 성장 모델이 객차내 화재 특성에 미치는 영향에 관한 수치해석적 연구 (A Numerical Study of the Effect off Fire Growth Model on Fire Characteristics in a Carriage)

  • 김성찬;유홍선;최영기;김동현
    • 한국철도학회논문집
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    • 제7권3호
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    • pp.180-185
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    • 2004
  • The present study investigates the effect of fire growth model on fire development characteristics in a carriage. The parallel processing version of FDS code is used to simulate the fire driven flow in a carriage and two types of fire growth model which are flame spread model and t$^2$ model are examined for the same geometrical condition. The heat release rates(HRR) of both model are similar each other until 30 s after ignition, but the flame spread model predicts 5 times higher than those of the t$^2$ fire model during the quasi-steady fire period. Maximum heat release rate in the case of flame spread model reaches about to 12 MW at 100 s after fire ignition. Also, various database of fire properties for combustible materials and more elaborate combustion model considering the flame spreading phenomena are required for better predictions of fire development characteristics using numerical simulation.

일본 동경소방청의 피난안정성평가 시뮬레이션 기술개발 사례연구 (A Investigation Study on the Development of Egress Simulation for Evacuation Safety Evaluation of Tokyo Fire Dept. Department in Japan)

  • 이현진;서동구;권영진
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 2008년도 추계학술논문발표회 논문집
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    • pp.216-222
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    • 2008
  • A large number of Computer-based fire growth and Evacuation model have been developed for various purpose and many of these are widely used for research and engineering. And Most of Egress simulation program are ordinary case only related to human behavior But Egress safety Evaluation is very closed to smog movement. It is well known that the Egress simulation program made by Tokyo Fire Department are related to smog movement. So It is the aim of this study to investigate on the Development of Egress Simulation for Evacuation Safety Evaluation of Tokyo Fire Dept. Department in Japan.

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