mass flow constant 中文意思是什麼
mass flow constant
解釋
質量流量常數-
In steady flow, mass flux is constant.
在穩定流動中，質量通量是恆定不變的。 -
For incompressible fluids, both the mass flux and the volume flux are constant in a tube of flow.
對于不可壓縮的流體來說，流管中的質量通量和體積通量都是恆定不變的。 -
4 ) in a pre - swirl rotator - stator cavities with discrete pre - swirl nozzles and blade - cooling entry holes, the influences of pre - swirl angle and flow parameter on the flow and heat transfer characteristics were numerically investigated. the correlation for average nusselt number vs rotating reynold number or non - dimensional mass flowrate were established. the results show that : advantage of per - swirl inflow is the effect of cooling the blade - cooling entry holes ; pre - swirl inflow increases heat transfer in rotating disk of pre - swirl chamber ; as pre - swirl angle increases, local nusselt number decreases in pre - swirl chamber ; the temperature of stator of inner rotator - stator chamber and per - swirl chamber decreases as rotating reynold number increases ; when the axial mass flowrate maintains constant, heat transfer in the rotating disk of inner rotator - stator cavities does n ' t change as per - swirl mass flowrate increases, while heat transfer in the rotating disk of per - swirl chamber increases ; when the pre - swirl mass flowrate maintains constant, change of the axial mass flowrate has effect on the whole cavity
結果表明，預旋進氣的優點在於增強了葉片冷卻孔附近的對流換熱效果，局部努謝爾數隨預旋角的增大而有所減小；隨旋轉雷諾數的增加，不論是內轉靜腔室還是預旋腔室的靜盤上的溫度都不同程度的降低：當軸向中心進氣質量流量不變時，隨預旋進氣的質量流量增加，內轉靜腔室的轉盤盤面上的換熱基本沒有變化，而預旋腔室的轉盤盤面上的換熱效果增強；當預旋進氣質量流量不變時，軸向中心進氣的質量流量的改變對整個盤腔都有影響。 -
Under the condition of constant phosphorus mass flow rate, the smog exit temperature would increase slowly while other parameters would decrease with increasing excess air coefficient
在燃磷量不變情況下，最高燃燒溫度、壁面最大熱流和平均熱流均隨過剩空氣系數的增大而減小，但煙氣出口溫度緩慢增加。 -
The predicted results showed that maximum combustion temperature, smog exit temperature, maximum wall heat flux and averaged wall heat flux would increase with increasing phosphorus mass flow rate when excess - air coefficient or air flow rate was constant
模擬結果表明，無論過剩空氣系數固定還是空氣流量固定，隨燃磷量的增大，最高燃燒溫度、煙氣出口溫度、壁面平均熱流和最大熱流都呈上升趨勢。 -
The research results show that the counter - flow condensers have a better performance than that of other arrangements in single - circuit condensers, and that branch flow should be adopted in multi - rows condensers to decrease the pressure drop and increase the heat transfer capacity, and that the influence of gravity force can not be ignored, and that there must be an optimum refrigerant mass flow which can make the condenser perform best when the air velocity is constant while there must be an optimum air flow which can make the condenser perform best when the refrigerant mass flow is constant
研究結果表明，單迴路冷凝器中，逆流布置換熱效果最好，叉流其次，順流最差；多排管冷凝器應盡可能採用分流方式，以減小壓降，增強換熱；布置冷凝器流程時，重力的影響不可忽略；當風量不變時，必然存在一最佳製冷劑流量使冷凝器性能達到最佳；當製冷劑流量保持不變時，也相應存在一個最佳風量使冷凝器性能最佳。 -
Mass flow constant
質量流量常數 -
The mass flow rate coefficients increase and achieve a constant at last with increasing blowing ratio. the influence of blowing ratio on the heat transfer coefficients and film effectiveness is complex
流量系數隨吹風比的增大而增大並最終趨于某個定值，但吹風比對氣膜孔下游換熱系數和冷卻效率則較為復雜。
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