旋流燃燒室 的英文怎麼說
中文拼音 [xuánliúránshāoshì]
旋流燃燒室
英文
swirl combustion chamber- 旋 : 旋Ⅰ動詞1 (旋轉) whirl 2 (用車床切削或用刀子轉著圈地削) turn sth on a lathe; lathe; pare Ⅱ名詞...
- 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...
- 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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Results show that all the geometric parameters have remarkable effects on combustion performance ; the swirl of intake air generated by skew intake holes enhances fuel - air mixing, minimizes dead zone and stabilizes the flame with reverse flow, but the excessive reverse flow can cause overheat in combustion chamber and exhaust ; the consistency of flow resistance in intake and exhaust system is conducive to the stability of heater performance
研究表明,燃燒室進氣孔的孔徑、孔數、孔的分佈及方向等均對燃燒性能影響很大;斜孔所產生的旋轉進氣,雖具有強化燃氣混合、消除死區和迴流穩焰的作用,但迴流過度會使燃燒室及排溫過高;保證進排氣系統流動阻力(壓力)的一致性,有助於保證加熱器性能穩定。In this paper combustion performances of the single - head annular combustor with different swirler cups are investigated by experiment and numerical simulation. under different fuel - air ratios, profiles of exit temperature 、 combustion efficiency 、 lean blowout limit and pollutant emission are measured
在相同的雙級旋流器情況下,試驗分析不同油氣比對單頭部環形燃燒室的出口溫度分佈、燃燒效率、貧油熄火油氣比以及污染物( co _ 2 、 co和nox )排放等燃燒性能的影響規律。Effects of different fuel - air ratios and different geometric parameters of dual - stage swirler ( such as inner diameters of the primary swirl and secondary swirl passages, outer diameters of the secondary swirl passages, vane angle of the primary and secondary swirler, the distance of the flare exit from throat etc ) on combustion performances are studied experimentally. the experimental results show that radial profiles of the outlet gas temperature 、 combustion efficiency 、 emissions of co2 、 co and nox and lean blowout are affected with different degrees by the different geometric parameters of dual - stage swirler and the arrangement of primary holes
在不同油氣比下,不同的雙級旋流器幾何參數(例如:一級與二級旋流器出口內徑d 、葉片安裝角、二級旋流器出口外徑d 、二級旋流器的喉道到出口截面的距離l和喉道前後的圓弧半徑r以及主燃孔孔布局等)對單頭部環形燃燒室的出口溫度分佈、燃燒效率、貧油熄火油氣比以及污染物( co _ 2 、 co和nox )排放等燃燒性能的影響規律進行了研究。Measurements of the velocity fields for turbulent combustion in a swirl combustor
旋流燃燒室內湍流燃燒速度場的實驗研究Based on detailed analyze on turbine engine and ramjet, a new conceptive internal - rotor burnt rotating ramjet ( irbrr ) with an rotating cylinder in the center of rotor in which the revolved stream can be ram - compressed and burnt has been proposed and some primary research have been done as below : the scheme of structure, principles, thermodynamic cycle and performances of the new conceptive engine has been studied in the paper
本文通過對燃氣渦輪發動機和航空沖壓發動機的原理結構進行詳細分析並進行融合創新,提出了一種利用內置旋轉汽缸進行旋轉氣流沖壓壓縮和旋流燃燒的新概念內置燃燒室旋轉沖壓發動機,並進行了一些前期的基礎性探索研究,具體研究內容有:對旋轉沖壓發動機進行了總體方案設計、工作原理分析、氣動熱力循環和性能分析等概念性研究。In this paper, simple reacting flow model in solid - propellant ducted rocket combustor based on eddy break - up model is established. the model is used to simulate the three - dimensional combustion flowfields in an experimental motor. some factors how to affect the combustion efficiency are discussed in the paper, including air intake and gas generator nozzle
本文基於簡單反應的旋渦分裂模型,建立了固體火箭沖壓發動機補燃室內的湍流燃燒模型,並在該模型下對某實驗發動機進行了三維數值模擬,研究了補燃室設計參數包括進氣道出口設計參數和燃氣發生器噴管設計參數對燃燒效率的影響。Second, we development the influence of flamethrower shape, root air, the obliquity of spin vane and block heat board for the air current in the firebox by simulating them through two phases calculate
然後通過兩級計算的方法,分別對不同海拔高度、噴火筒形狀、根部風大小、旋流葉片的傾角以及有無回熱板時對燃燒室空氣氣流組織的影響進行模擬。Phenomena, such as flow field confusion and slagging etc. have occurred in the practical process of cyclone burner for coal - water slurry ( cws ) firing, on this basis a study on aerodynamic field of cws cyclone burners had been carried out through cold state experiments in the laboratory, then the influence of burner ' s structure properties upon the said flow field had been carried out, and expected to find more reasonable structure of the burner was found. in my study the focus is on the affection of cone and cyclone intensity in the condition of infinite and finite fields
本文著重研究現有水煤漿旋流燃燒器的旋流葉片角度,一次風擴口的長度以及角度對旋流燃燒器出口流場的影響,通過流場的比較,以期得到性能較好的旋流燃燒器。考慮到水煤漿燃燒器中心的水煤漿射流對于其空氣動力場的影響,本文在實驗室冷態實驗研究的基礎上,模擬水煤漿射流,研究其對燃燒器空氣動力場的影響。But the influence decreases with the reduction of fuel - air ratio. cold and reacting flow fields are calculated using commercial software fluent. numerical simulations are in agreement with the experimental data
另外,還利用商業軟體fluent對帶雙級旋流器的單頭部環形燃燒室冷態和熱態整體流場進行了數值模擬,計算結果與試驗數據吻合較好。With computations and analysis, the comprehension on the mixing and combustion process is increased, and some significative results are listed below : a ) there are three recirculation regions and one vortex region in the combustor, and these recirculation regions affect the combustion process deeply, b ) increasing side - arm angle and moving side - air inlet position toward the fuel inlet can improve mixing and combustion characteristics, and increase the combustion efficiency, c ) when the angle between two air - inlets equals to 180
通過計算與分析,增進了對補燃室內摻混燃燒過程的理解,為固體火箭沖壓發動機補燃室設計提供了一些有意義的結果: 1補燃室內的流動十分復雜,存在三個迴流區和一個旋渦區,迴流區對摻混燃燒過程有重要影響; 2增大空氣入射角度、向前移動進氣道出口位置有利於增強頭部迴流區強度,增強摻混效果,燃燒效率上升; 3Numerical simulation of gas - solid two - phase flows in a swirling - flow combustor through the use of a modified k - - kp two - fluid model
雙流體模型用於模擬旋流突擴燃燒室內氣固兩相流動Numerical simulation of recirculating turbulent flows in a swirl combustor with annular inlet and exit
環形進出口旋流燃燒室內有迴流的湍流旋流流動的數值模擬分享友人