火災氣流 的英文怎麼說

中文拼音 [huǒzāiqìliú]
火災氣流 英文
fire effluent
  • 火 : fire
  • 災 : 名詞1. （災害） disaster; calamity 2. （個人的不幸） personal misfortune; adversity; unluckiness
  • 氣 : Ⅰ名詞1 （氣體） gas 2 （空氣） air 3 （氣息） breath 4 （自然界冷熱陰晴等現象） weather 5 （氣味...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 火災 : fire （as a disaster）; conflagration火災保險 fire insurance; 火災保險公司 [英國] fire company; ...
  • 氣流 : 1 [氣象學] air current; airflow; wind current; airstream2 [語言學] breath氣流紡紗 open end spinni...
  1. The distribution of fire smoke temperature, concentration, and visibility was analyzed ; and the airflow movement organization of the shallow embedded island platform during fire was studied

    針對地鐵淺埋島式站臺列車火災情況，利用數值模擬場模擬方法，研究淺埋島式站點內煙氣橫向流動和不同站層間的煙氣縱向蔓延規律。
  2. Which bring up a conclusion that the zoon model is not agree with the facts of fire experiment, hence the field model or the combined model is better for the simulation of fires in a large volume building

    本文結合火災相似模型實驗研究，對中庭建築火災過程進行了數值模擬研究，建立了火區燃燒及蔓延過程與煙氣流動過程相互耦合的氣-固兩相火災模型。
  3. Some scientists say a hotter planet could be to blame for such natural disasters as the year ' s wildfires in the western united states, and growing drought conditions in africa, and typhoons which caused mudslides in china and the philippines claimed thousands of lives

    一些科學家認為，今年在美國西部發生的野火和非洲地區不斷加劇的乾旱氣候、以及在中國和菲律賓引發了導致數千人死亡的泥流的臺風，諸如此類的自然災害很可能是由全球變暖引起的。
  4. Computational fluid dynamics ( cfd ) techniques are used to study and understand fluid behavior in tunnels. by simulating complex specific operational cases, we can educe velocity or flux distribution in tunnel under different ventilation and resistance situation and determine the favorable operational procedures of the erlang mountain tunnel ventilation in a fire case. comparison has been made between a simulation and experiment for some cases in order to prove the cfd model is powerful, so that enables the study of cases for which experimental data is not available

    採用本文將隧道內的氣流看成是理想流體的一維恆定流動，通過對二郎山特長公路隧道半橫向通風系統建立隧道內的空氣動力學模型，利用計算機進行數值分析與計算，得出發生火災時，不同通風阻力條件下隧道中的風速分佈及流量分佈，並通過實驗室隧道模型實驗進行驗證與修正，依據研究結果給出了二郎山半橫向通風隧道的火災控制方案，從而解決了二郎山公路隧道通風對火災的控制問題，同時為半橫向通風公路隧道的火災通風提供科學的方法。
  5. When the alarm detects that the concentration of the gas reaches or excesses the preset alarming scale, the alarm will give out sound and light alarm immediately to warn the users to take measures for safety, start the exhaust and the spray systems, and cut off the gas flow for preventing explosion, fire disaster and poisoning to guarantee the safety of production

    當環境中探測氣體濃度達成或超過預置報警值時，報警器立即發出聲光報警，以提醒用戶採取安全措施，並驅動排風、噴淋系統、切斷，切斷氣流防止發生爆炸、火災、中毒事件，從而保障安全生產。
  6. The author found that the stable heat source presumption or the t2 design fire is also not agree with the experimental data. the simulation of fire in an atrium has shown that the new model is more accurate to predict the fire scenarios than any other models that include a general mathematical model of fires

    該模型充分考慮了火區燃燒與蔓延情況對煙氣流動數值模擬的影響，從而可以更加準確地反映出火源釋熱率的變化等因素的影響，改善了中庭火災煙氣流動數值模擬的精度與可靠性。
  7. 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
  8. 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
  9. Taking dongzhimen station on beijing metro line 13 as an example, authors of the paper adopt cfd three dimensional simulation and one dimensional network simulation respectively to make a predictive analysis on the smoke distribution and air flow during a fire in accordance with the smoke suppression and exhaust system installed in the public area of the station and in the transit tunnels, and point out that the reliability of the smoke suppression and exhaust system is most important to guarantee the capability of passenger evacuation during a fire

    摘要以北京地鐵13號線東直門站為例，結合車站公共區與區間隧道的防排煙系統設置情況，分別採用cfd三維模擬與一維網路模擬的方法，對火災時煙氣的分佈及氣流流動善進行預測分析，說明防排煙系統的可靠性對于保證火災情況下的安全疏散能力至關重要。
  10. Based on the analysis of the variation law of smoke flow in subway platform fire, a concept about critical ventilation speed from platform to concourse was presented

    在分析了地鐵站臺火災時煙氣流場變化規律的基礎上，提出了臨界通風速度的概念。
  11. Study of fire smoke flow characteristics of horizontal tunnel using longitudinal ventilation

    縱向通風水平隧道火災煙氣流動特性研究
  12. The testing methods of combustibles heat release rate based on mass 1oss rate is also introduced, the experimental figures and results are analysed in this paper

    火源熱釋放速率的大小對於火災的溫度分佈及煙氣流動的影響較大。
  13. Numerical simulation for smoke flow of the tunnel fire

    隧道火災煙氣流動的數值模擬
  14. The importance of fire hazard and smoke control are presented in the thesis ; design for fire protection of underground commercial street in our country is introduced. the present research of smoke movement and smoke control at home and broad is summed up. the numerical simulation of smoke control is also discussed in this thesis

    本文闡述了地下商業建築火災的危害和控制煙氣的重要性;介紹了我國地下商業街的防火設計概況以及地下商業街的防護對策;綜述了國內外建築火災煙氣流動與控制的研究現狀;討論了煙氣控制的計算機模擬。
  15. 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。
  16. Alarm system for electric fire prevention part 2 : leakage current detecters for electric fire prevention

    電氣火災監控系統第2部分：剩餘電流式電氣火災監控探測器
  17. The work here has a lot of application and stringency. for the first time, the various ventilating methods and effects to control the smoke in a fire emergency of the erlang mountain tunnel semi - transient ventilation road tunnel are presented. with the hypothesis of one - dimensional steady ideal fluid, the experimental and numerical studies are presented

    本文首次研究了半橫向通風方式的隧道在發生火災時，通過通風系統的風機、橫通道及平行導洞內的閥門的不同動作方式在著火點產生大於臨界風速的強制氣流，對隧道內煙氣走向進行控制的各種方法和效果。
  18. This paper adopted a suitable scale physical model, by measuring of air temperature in balconies, the author researched the impact on smoke by different kinds and forms of balconies and the air temperature distributing in balconies when fire emergency in high - rise buildings. the aim is to promote deeper research and analysis on the fire - prevent function of balconies in our country

    本文採用適當比例的物理模型實驗研究方法，藉助對陽臺空間溫度的測量，研究了高層建築在火災條件下不同種類、不同形式的陽臺對煙氣沿外墻面流動影響因素及陽臺空間溫度分佈規律，旨在推動我國在建筑陽臺消防功能領域中進行更深一步的研究與分析。
分享友人
分享到 Line

分享到臉書