main airflow 中文意思是什麼
main airflow
解釋
主氣流-
Brings forward the basic network cell model of symmetrical blast vault and asymmetric blast vault. then studies and analyses airflow in vault of main voltage switchyard hall of xiluodu hydropower station which is far cry and large numbers of airflow conflux, brings forward concept of “ virtual embranchment ” and corresponding basic network cell model, regresses calculate expressions of flux uniformity coefficient and impedance of “ virtual embranchment ” of vault of main voltage switchyard hall of xiluodu hydropower station
而後又採用cfd數值模擬的方法對溪洛渡水電站主變洞排風拱頂這種多股氣流匯流的長距離通道內的氣流流動進行了分析，提出了「虛擬分支」的概念和相應的網路基元模型，並回歸得到了溪洛渡水電站主變洞排風拱頂各個排風「虛擬分支」風量均勻系數以及阻抗的計算公式。 -
Flame tube in aircraft engine undergoes high temperature and high speed airflow washing. a hypothesis was suggested, which takes the transient heat transferring as the main reason to the cracking and damage on flame tube. finite element method was adopted to simulate the thermal fatigue and the hypothesis was reproduced
發動機火焰筒的熱疲勞損傷是導致火焰筒失效的主要原因，本文提出了一種火焰筒熱疲勞損傷假設，認為火焰筒熱疲勞損傷不是由於發動機的運行和停車時冷熱溫度循環造成的，而是發動機啟動時瞬態溫度傳導過程中材料循環塑性變形的結果，利用該假設結合有限元計算模擬了火焰筒產生疲勞損傷的原因。 -
A two - dimensional double diffusive laminar natural convection in rectangular enclosure is detailed analyzed. the results show that when the thermal and solutal buoyancies aid each other, the airflow consists of one main cellular structure and is steady, regardless of the relative strength variation between the heat and pollutant sources. there are multiple flow structures, however, according to the relative strength when the buoyancies opposing each other
模擬結果表明雙擴散自然對流系統的空氣流動與傳熱傳質特性完全是由離散熱源與污染源浮升力之間的相互作用關系訣定的：當離散熱源與污染源浮升力協同作用時，自然對流呈比較穩定的單一流動結構；而當熱源與污染源浮升力對抗作用時，自然對流系統隨它們之間強度變化呈現出多種流動狀態。 -
The cold model tests were completed on the mixing characteristics between the reburning airflow and main airflow or between ofa and main airflow in a cold model test - bed according to the practice situation of 6 # boiler in jianyou power plant in sichuan provice and the requirements of industrial tests for low nox reburning test project from state electric power company. the cold simulated experimental study included : 1
針對四川省江油電廠6 #煤粉鍋爐的實際情況，以及國家電力公司低nox再燃技術試驗項目工業試驗的具體要求，在一個四角噴燃煤粉鍋爐冷模試驗臺上，對原型鍋爐內再燃氣流和燃盡氣流（ ofa ）與主燃燒氣流之間的混合特性進行了冷模試驗研究。 -
Two typical examples analyses are conducted for the average conditions both of winter and summer climates under vapor diffusion and air leakage. a further discussion is set forth to determine the main factors that the moisture accumulation in wall is affected. it is found that the factors are the relative humidity at the wall surface, indoor temperature, permeability, air pressure difference and rate of the infiltrative or exfiltrative airflow
本文首先研究了墻體內的濕氣遷移過程，詳細分析了濕積累現象形成的原因，通過對夏、冬兩季平均氣候下墻內溫度、水蒸氣壓力、相對濕度及濕積累在僅有擴散、擴散與空氣滲透同時存在等情況所作的具體計算，發現墻內、外表面的相對濕度、室內溫度、滲透率、空氣壓差以及空氣的滲流速度是影響墻內濕積累的主要因素。 -
4. main performance parameters of co2 - based refrigeration system are also simulated and studed after parameters of airflow changed
4對冷卻器和蒸發器空氣側參數變化后的二氧化碳跨臨界系統的主要性能進行了模擬計算和研究。 -
In order to measure the mixing characteristic, different temperature spout test method was used. the room air was used as main airflow and ofa
為了較為準確地測量氣流的混合特性，冷模試驗採用了不等溫射流方法。 -
The main function is the calculation degree of all kinds of the valves ( cross valves, blades valves, draught valves, etc. ) fitted in the air system in the condition of the layout and airflow of the air system. and the calculation degree can be exported in the report forms, which can be treated as the fixing degree of valves
軟體的主要功能為在已知風系統布置情況及系統風量設計參數下，計算設計工況下的系統中諸如多葉調節閥，風口調節閥，帶調節閥片的四通等等部件的閥片計算開度，並將開度結果以報表形式輸出，作為安裝公司安裝風閥時的風閥預調開度。
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