cold nozzle 中文意思是什麼
cold nozzle
解釋
冷函道噴管-
This paper described a cold gas simulation of solid rocket motor with submerged nozzle. a two - dimension model with rectangular channel was designed, which can simulate different flow conditions at three periods after ignition
本文從冷流模擬的角度出發，設計了通道為矩形的含潛入噴管發動機冷流模型，可以模擬發動機工作過程中三個不同時刻的流動狀態。 -
The effects of reynolds number, back surface of nozzle, aft - dome configuration and degree of submergence on aft - end internal flow were studied by both cold gas simulation and numerical simulation. it is showed that the separated flow is sensitive to the change of reynolds number and aft - end cavity configuration
最後，利用冷流模擬與數值模擬相結合的方法，研究了雷諾數、噴管背壁形狀、后封頭形狀和潛入深度對燃燒室尾部流場的影響，結果表明流動的分離對雷諾數和背壁區幾何邊界的變化很敏感。 -
2. using cfd software - fluent, many flow states were been simulated. these states are the influence of nozzle structure with the flow, the distributing characteristic of inside flow, the influence of cold gas flow and outside flow with the work of the nozzle, the change of inside pressure load when the nozzle regulates
2 、藉助cfd軟體fluent ，計算出可調噴管本身結構對流動的影響、可調噴管流場的參數分佈、冷卻氣流對噴管流動的影響、外流對可調噴管內流的影響、噴管的冷流流場和噴管調節過程中內壁面的壓強載荷變化。 -
In arbitrary curvilinear coordinate systems, three dimensional turbulent combustion flow fields of the three kinds of turbofan engine afterburner with the longitudinal heat shield 、 outer cold flow and the jet nozzle are simulated. the three - dimensional body - fitted grids are generated by an elliptical grid generation procedure and zone method
本文在任意曲線坐標系統下對三種帶有縱向隔熱屏、外冷卻通道和尾噴管的渦扇發動機加力燃燒室的三維紊流燃燒流場進行數值模擬。 -
The cold fog is produced by a special device ( cold fogger ) that breaks up the chemical into microscopic droplets by mechanical means, basically with a high - pressure pump and an extreme fine nozzle
（冷噴霧器）製造。基本來說，此裝置用高壓泵和極細的噴嘴，以機械方法把化學液體變成微細的霧滴。 -
As a simple device without moving parts, vortex tube is composed of nozzle, vortex chamber, separating plate, control valve, hot - end and cold - end
渦流管是一種結構極為簡單的製冷裝置，它由噴嘴、渦流室、分離孔板、熱閥以及冷熱兩端管組成。 -
The calculated results of cold nozzle flow are in agreement with some cold test one. through calculation, the parameter distributions of regulated nozzle flows were obtained. they state that the design of the regulated nozzle is reasonable, and its velocity loss at discharge section is less than 2. 3 % comparison with no regulated nozzle
3 、計算結果與已有的試驗結果對比相符，計算獲得了可調噴管的流場參數分佈，表明可調噴管的設計合理，與不可調噴管相比，流動的出口平均速度損失小於2 . 3 。 -
Results of atomization performance in cold - flow - simulated experiment and burning experiment and temperature distribution are reached, influence of nozzle stucture and working condition with atomization performance and conbustion performance are analyzed
確定了這些噴嘴在冷流模擬條件和常壓燃燒條件下的流量特性、霧化特性以及噴霧流火焰的溫度場特性，比較分析了不同噴嘴結構形式、不同工況對霧化性能和燃燒性能的影響。
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