pressure in bubbles 中文意思是什麼
pressure in bubbles
解釋
氣泡壓力-
It is studied that the formation mechanism of taylor bubble and its control method in gas - liquid two - phase flow, which affects the pressure balance and mechanical driving efficiency in the flow of petroleum engineering. experiments show that the formation of taylor bubble in gas - liquid two - phase flow is due to the intensive congregation and amalgamation of small bubbles driven by void fraction waves and that the highly turbulent flow is able to restrain this formation. thus, the flow regime transition may be checked by increasing the flow turbulence and controlling the disturbed frequency
對大管徑氣-液兩相流動中嚴重影響壓力平衡與機械驅動效率的段塞流生成機制和控制方法進行了研究，實驗證明段塞流的形成是由於空隙率波的大幅度增長使氣泡高度集中，並形成聚並所致。強湍流運動可以抑制taylor泡的形成。因此，通過強化湍流或控制擾動頻率可以對氣泡聚並起明顯的抑制作用。 -
The bubbles in diesel engine fuel injection system are studied. the frequency structure of pressure wave with bubbles bursting ， as well as relation of types of bubbles and frequency spectrum ， is expounded
採用頻譜分析法對柴油機燃油噴射系統中的汽泡進行了研究，分析了汽泡潰滅造成壓力波振蕩的頻率結構特性，並論述了汽泡與壓力波及其頻譜的關系。 -
In the forth chapter, the sl threshold pressures for bubbles with different noble gases were measured experimentally. results show that the threshold pressure increases with the decrement of molecular mass for gases inside the bubbles
氣泡內的惰性氣體不同使氣泡內的絕熱系數和熱擴散系數不同，惰性氣體的原子質量越大，氣體的絕熱系數就越大而擴散系數就越小。 -
If the burst duration is too long, or the gas pressure too high, the bubbles tend to collect and rise in columns.
如果放泡時間太長或氣壓太高，氣泡將聚在一起以氣柱狀上升。 -
When the pressure transients occur in low pressure pipelines such as the suction lines of pumps or the return lines of a hydraulic system, gas bubbles and cavitation will occur inside the fluid
當壓力脈動發生在液壓泵的吸油管路或液壓系統的回油管路等低壓管路中時，會引起氣泡和氣穴的產生及破滅。 -
As a result, bubbles of real estate influence the nation ’ s economy more seriously. the crashes of bubbles in real estate have directly induced the economy and finance crises in japan and southeast asia. meanwhile, china is facing the double challenges from reformation on finance system and pressure brought by globalization
而後從三個方面探討了房地產泡沫形成的原因，認為經濟環境的變化是形成房地產泡沫的主要誘因，而金融中介的支持則給房地產泡沫提供了資金支撐，國外游資的投機會進一步放大房地產泡沫。 -
Dissolved air floatation is that air is dissolved under pressure is the liquid which is then released to atmospheric pressure in tube. as the microscopic air bubbles come out of solution in cell, they attach to the suspended solids in the surface in liquid, causing them to floatation th the surface, then solids are separated from liquid
氣浮就是設法在待處理液體中通入或產生大量密集的帶有壓力的微細氣泡，在管道以常壓下釋放，使其在池內與雜質，絮粒互相粘附形成整體浮體，從而依靠浮力使其上浮至液面，從完成固液分離的方法 -
In this paper, some aspects of vacuum preloading were studied as follows. vacuum consolidation test and load consolidation test were performed and compared for different kind of soil samples. after analyzing the results of tests, the four major mechanisms of vacuum consolidation were defined as : variation of capillary potential, drainage of sealed bubbles, vaporization and action of atmosphere pressure, in which, the action of atmosphere pressure is the most important factor
首先對不同土樣進行了一系列室內真空固結和加載固結的對比試驗，通過對試驗結果的比較分析，明確了抽真空引起土樣固結的原因，即抽真空作用會在四個方面對試樣產生影響：毛細管勢的改變、封閉氣泡的排出、汽化現象及大氣壓的作用，而其中大氣壓的作用是最主要的。 -
The experiments of the pressure transients accompanying the growing and collapsing of gas bubbles and cavitation in low pressure hydraulic pipelines are carried out
本文對低壓液壓管路有氣泡和氣穴產生的瞬態壓力脈動過程進行了實驗研究。 -
Therefore, the study of the fluid transient accompanying the growing and collapsing of gas bubbles and cavitation in low pressure hydraulic pipelines is absolutely important for the prediction of the hydraulic pump performance and the safety of hydraulic system
因此，研究低壓液壓管路有氣泡和氣穴產生的瞬態壓力脈動過程，對于液壓泵的流量特性預測以及液壓系統的正常工作有著重要的意義。 -
In this paper, according to the fluid dynamic theory, mathematical model of the pressure transients accompanying the growing and collapsing of gas bubbles and cavitation in low pressure hydraulic pipelines is given, based on the continuity equation and motion equation. the mathematical models of friction item, the growing and collapsing of gas bubbles and cavitation are also introduced
本文通過流體力學分析方法，在連續性方程和運動方程基礎上，建立了低壓液壓管路中伴隨氣泡和氣穴產生的瞬態壓力脈動數學模型，給出了動態摩擦力數學模型及氣泡和氣穴產生及破滅數學模型。 -
The finite difference method and matlab / simulink are used to simulate the pressure transients accompanying the growing and collapsing of gas bubbles and cavitation in low pressure hydraulic pipelines. a method using selector block in matlab simulink to solve the equations in spatial dimension is developed. the pressure transients under different conditions such as different initial flow rate, different viscosity and different initial gas bubble volume are simulated
採用有限差分及matlab / simulink模擬方法，提出了採用simulink中selector模塊求解空間域上積分的方法，對低壓液壓管路有氣泡和氣穴產生的瞬態壓力脈動過程進行了時間域和空間域上的求解，對不同起始流量、不同液壓油粘度和不同初始氣泡量等條件下的瞬態壓力脈動過程進行了模擬研究。
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