primary-to-secondary flow 中文意思是什麼
primary-to-secondary flow
解釋
主站到次站數據流-
The effects of such elements as primary flow total pressure, flow rate, degree of fuel rich, nozzle structure, flying speed and secondary combustion on ejecting mode performance were researched. it was found that thrust augmentation can be achieved on the condition that the flying mach number is above 0. 7. to deeply analyze thrust augmentation mechanism in low speed range, the research was further continued by changing secondary combustion organization and aft - body configuration
研究了一次流總壓、流量、富燃程度、噴管結構、二次流來流速度、二次燃燒組織對引射模態性能的影響，發現實驗樣機構型在0 . 7ma以上的飛行條件下可以獲得推力增強，而在0 . 7ma以下無推力增強。 -
The mixing degree model was established to study the mixing progress of primary and secondary flow. the loss elements of all zones were deeply analyzed and thus the quantitative loss models based on total pressure loss and entropy increase respectively were constructed. the results show that the performance loss magnitude and distribution in ejecting mode of rbcc can be better described by the quantitative loss model expressed by entropy increase
提出用摻混度模型來研究一次流與二次流的摻混程度，並深入分析了各流動區域的損失因素，建立了以總壓損失和熵增分析為基礎的損失量化分析模型，計算的結果表明，採用熵增模型描述的損失因子能量化反應引射摻混損失的分佈和大小。 -
The experimental results indicates that the secondary mass flow increases with increasing of primary mass flow rate, but the bypass decrease because the primary mass flow rate increase more rapidly than secondary mass flow. the expansion configuration shows low thrust property due to low pressure in flow path. the secondary nozzle changes the pressure distribution in ejector combustor, and decreases bypass ratio, but obtain more completely mixing
結果表明：二次流流量隨著一次流流量的增加而增加，由於二次流流量的增加速度低於一次流，引射系數減小；在純擴張式結構實驗中，引射燃燒室壓強很低，難以實驗推力增強；二次噴管改變了引射燃燒室的壓強分佈，降低了引射系數，改善了混合狀況能；對于本文的實驗結構，存在一個最優的二次噴管出口面積，使引射火箭推力最大，同數值模擬結果相吻合。 -
For the dual register burner, while cat being applied, it simulates the influences of the flow field in the burner by changing the velocities of primary flow and inner / outer secondary flows, and by changing the opening percents of inner / outer vanes. eventually, the appropriate values for velocities and opening percents of vanes are recommended, to provide engineering problems with theoretical orientations
針對雙調風旋流燃燒器，本文運用計算機輔助試驗（ cat ）方法對一次風速度，內、外二次風的葉片開度及內、外二次風速度對燃燒器內流場的影響進行了數值試驗，得出了雙調風旋流燃燒器推薦使用的二次風葉片開度和速度值范圍，為工程應用提供了理論依據。 -
Experiments with controlled excitation of primary and secondary instabilities have been performed to study the process leading to the final breakdown of laminar swept wing flow. two types of high frequency secondary instabilities are identified
在人工激勵激發基頻與定常擾動條件下，施加高頻人工激勵，研究附面層流流動在高頻二次不穩定性擾動的發生與增長過程。 -
These measures are as follows : shorten the primary wind intervals to improve thermal load of the burner ; reduce the size of hypothetical circle of contact to prevent the flame from splashing ; use nozzles with larger height / width ratio to increase the effusive rigidity, so as to increase the jet flow depth of secondary wind into the main jet flow ; use a higher primary wind velocity to increase its jet flow rigidity ; use a special flame holder structure of the primary nozzle, so as to improve
這些技術措施主要有:縮小一次風間距以提高燃燒器區域熱負荷;縮小假想切圓防止火焰刷墻;採用高寬比較大的二次風噴口以增加射流剛性，提高二次風射流進入主射流的深度;採用較高的一次風速來提高一次風射流剛性;一次風噴口採用特殊穩燃結構;提高下二次風的托粉能力。 -
The break was assumed to be a single tube double - ended and three - tube double - ended shear break. the diameter of the break orifice is 0. 876mm and 1. 518mm respectively. the characteristic responses of main thermal - hydraulic parameters, such as primary pressure, secondary pressure, break flow rate, pressurizer level, secondary side level of steam generator and so on, were presented in this thesis
試驗再現了核電廠蒸汽發生器單根傳熱管雙端斷裂事故和三根傳熱管雙端斷裂事故發生后的熱工水力現象，給出了事故過程中一次系統壓力、二次系統壓力、破口流量、蒸汽發生器二次側水位、穩壓器水位、元件表面溫度等主要參數的瞬態響應。 -
The influence of primary flow and secondary nozzle geometry on ejector effect and thrust was investigated, and the approach to increase thrust of rocket ejector was found gradually
研究了一次流參數和二次噴管結構對引射效能和發動機推力的影響，找到了逐步提高推力的措施。
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