液滴燃燒 的英文怎麼說
中文拼音 [yèdīránshāo]
液滴燃燒
英文
droplet combustion- 液 : 名詞(液體) liquid; fluid; juice
- 滴 : Ⅰ動詞(液體一點一點地向下落) drip Ⅱ名詞(一點一點地向下落的液體) drop; droplet Ⅲ量詞(用於滴下的液體的數量) drop
- 燃 : 動詞1. (燃燒) burn 2. (引火點著) ignite; light
- 燒 : Ⅰ動詞1 (使東西著火) burn 2 (加熱或接觸某些化學藥品、放射性物質等使物體起變化) cook; bake; hea...
- 燃燒 : (物質劇烈氧化而發光、發熱; 燒) burn; kindle; flame; set on fire; [化學] combustion; inflammation; ignition
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Droplet ignition and extinction in practical combustors are strongly influenced by forced convection and turbulence.
在實際燃燒室中,液滴點火和熄火受到強迫對流和紊流的強烈影響。Controlled droplet combustion experimentation has led to the establishment of the following important facts and patterns.
受到控制的液滴燃燒試驗確定了下列重要事實和特性。Numerical investigation of kerosene - droplet ' s instable combustion in oxidizer - rich gas
煤油液滴在富氧燃氣中不穩定燃燒的數值研究This approach also gives undue importance to the small drop sizes, since it is assumed that they are never burned but always exist as in steady state.
這個方法假設小尺寸液滴處于穩態下並不燃燒,因而對其重要性估計得過高。As to the simulation, three - dimensional n - s equations and two - phase flow model, in which the liquid toluene spray as discrete particles was considered, were employed to describe the turbulent combustion processes in the combustion chamber. the mass and energy transfer between the two phases were calculated by the droplet evaporation model, and the arrehnius model was used to obtain the gas chemical reaction rate. the details of 3d flow field, the distributions of temperature and compounds were obtained by solving the equations
數值模擬方面,應用三維湍流n - s方程以及顆粒軌道模型描述了激光器燃燒室內部的噴霧兩相燃燒流動過程,兩相之間的質量、能量交換由液滴蒸發模型計算,氣相化學反應速率由arrhnius公式計算,通過耦合求解氣液兩相模型方程,模擬了燃燒室三維流場,得到了燃燒室內的溫度和組分濃度分佈。The pilot fuel model has been given to calculate the distribution of the liquid fuel and time of fuel pre - combustion, at the same time, analyzing the important action to the combustion of the natural gas in the combustion chamber of engine, determining the best quantity of pilot fuel. the explosive combustion model has been established to compute the pressure of the cylinder during the combustion, determining the main influence factors. the emission model has been established to forecast the co, nox emission
理論方面,提出了基於化學反應的燃燒模型?多組分氣相反應系統的化學反應動力學模型,以此進行雙燃料發動機的熱力學?化學反應動力計算;引燃油燃燒模型,計算引燃油液滴的分佈規律和滯燃期,驗證引燃油在雙燃料發動機燃燒過程中的作用,揭示不同噴油規律對雙燃料發動機的影響,確定在不同負荷下的合理引燃油量;爆震模型,揭示爆震與工質能量釋放間的關系和影響爆震的各種運轉因素,確定合理的爆震依據,減小爆震傾向。This paper analyses the heat absorption and evaporation process of the droplet, the combustion characteristic of motor spirit and ethanol motor spirit, and oxygen concentration of motor spirit and ethanol motor spirit was measured from burning to self extinguishing in the enclosed space
摘要分析了細水霧滅火時液滴的吸熱蒸發過程和汽油與乙醇汽油的燃燒特性,進行了汽油、乙醇在封閉空間內從燃燒到自行熄滅時的含氧量變化測量。Sulfur dioxide, emitted by the industrial production and domestic burning fuel, and nitrogen oxides, emitted by the car exhausts and burning petrol are absorbed by the rain, forming larger raindrops, and falling on the ground. this is called acid rain. the main fuel in china is coal, which emits mainly sulfur dioxide, so the acid rain in china is sulfuric acid type of acid rain
工業生產民用生活燃燒煤炭排放出來的二氧化硫,燃燒石油以及汽車尾氣排放出來的氮氧化物,經過雲內成雨過程,即水氣凝結在硫酸根硝酸根等凝結核上,發生液相氧化反應,形成硫酸雨滴在下降過程中不斷合併吸附沖刷其它含酸雨滴和含酸氣體,形成較大雨滴,最後降落在地面上,形成了酸雨。( 1 ) the cfd model for the pulse combustion spray drying process. the computational fluid dynamics ( cfd ) based on the two - phase flow theory was employed in this paper, which used the standard k - e model and the particle trajectory model to simulate the gas - particle flow in the drying chamber. the momentum, heat and mass transfer regarding both gaseous and particulate phases during the spray drying inside the drying chamber was also revealed
為解決這一難題,本文利用氣體一顆粒兩相流理論和計算流體力學( cfd )技術,建立了更符合實際噴霧乾燥過程的數學模型即噴霧乾燥的cfd模型,並進行了脈動燃燒噴霧乾燥過程模擬,其主要內容如下: ( 1 )建立了脈動燃燒噴霧乾燥的cfd模型該數學模型建立在氣體一顆粒兩相流基礎之上,用標準k -模型預測乾燥室內的氣體湍流運動過程,顆粒軌道模型追蹤乾燥室內顆粒群的運動軌跡,熱質傳遞模型描述空氣和液滴的熱質傳遞過程。In the alternate approach, the burning rate is expressed as a function of drop radius.
在另一種方法中,燃燒速率表示為液滴半徑的函數。At high pressures, the combustion model should include droplet heating as well as phase change.
在高壓下,燃燒模型應當包括液滴加熱和相變。The experiment results indicate : when the velocity of propellant drops belows 40 m / s, the researched nozzles can obtain stably burning blaze
實驗結果表明,噴霧液滴速度小於40m s時,所研究的同軸噴嘴可以獲得穩定燃燒的火焰。This article has a particular research on three kind of gas / liquid coaxial nozzles for their flow performance and atomization performance under cold - flow - simulated experiment with the supply of laser doppler technology, and the measurement of the drop parameter and combustion performance under normal pressure and burning condition
本文應用激光多普勒技術對三種氣液同軸模型噴嘴的流量特性和霧化特性進行了冷流模擬實驗研究,並在常壓燃燒條件下對其噴霧流的液滴參數和燃燒性能進行了實驗測量。分享友人