火災蔓延通道 的英文怎麼說
中文拼音 [huǒzāimányántōngdào]
火災蔓延通道
英文
firepath = fire path- 火 : fire
- 災 : 名詞1. (災害) disaster; calamity 2. (個人的不幸) personal misfortune; adversity; unluckiness
- 蔓 : 蔓名詞1. (細長不能直立的莖) a tendrilled vine 2. (姓氏) a surname
- 通 : 通量詞(用於動作)
- 道 : Ⅰ名詞(道路) road; way; route; path 2 (水流通過的途徑) channel; course 3 (方向; 方法; 道理) ...
- 火災 : fire (as a disaster); conflagration火災保險 fire insurance; 火災保險公司 [英國] fire company; ...
- 蔓延 : 1. (向周圍擴展) creep; spread; extend; sprawl 2. (傳染; 侵擾) infest; infestation
- 通道 : thoroughfare; passageway; pass; enterclose; gallery; drong; tunnel; avenue; alure; way; row; key ...
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The sound of the rumble and crash of falling walls and ceilings ; the roar and hiss of the flames, and the excited shouts of the crowd ; the sight of the hovering clouds of smokehere folding over into black masses, there drawing out and lighted up by gleaming sparks ; and the flameshere like a thick red sheaf, and there creeping like golden fish - scales over the walls ; the sense of the heat and smoke and rapidity of movement, all produced on pierre the usual stimulating effect of a conflagration
墻壁和天花板的斷裂聲訇然倒塌聲火焰的呼嘯和畢剝聲人們的狂叫吶喊,時而動蕩不完的煙雲時而騰空升起,夾雜著明亮的火星,雖煙滾滾閃出道道火光,此處是禾捆狀的通紅的火柱,彼處是沿著墻蔓延的魚鱗狀的金色火焰這一切景象,合著熱浪和煙味的刺激,行動的迅速,這種種感覺在皮埃爾身上產生了面對火災常有的興奮作用。Numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
運用cfd進行數字模擬,以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要,熱煙氣流特性受火源位置的影響很大,並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好,也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明,在縱向通風隧道內,熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現,火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區Abstract : numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
文摘:運用cfd進行數字模擬,以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要,熱煙氣流特性受火源位置的影響很大,並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好,也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明,在縱向通風隧道內,熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現,火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區Underground building with its closed, exits lacked, the people density being large, the flow direction of smoke and the spread direction of fire are consistent in the evacuation routes. fires in the underground building are much danger than over ground building. the hazards of smoke are especially strict in underground building, so smoke control in the underground building has becoming the focus
地下商業街由於其封閉性強,與地面直接連通的出入口少,內部通道的人流密度大,火勢蔓延的方向和煙氣流動的方向與人員疏散的方向相一致,因此一旦發生火災將產生比地上建築更為嚴重的後果,火災時煙氣危害將更為嚴峻,因此地下商業建築的煙氣控制研究越來越受到人們的關注。分享友人