fluidized flow 中文意思是什麼
fluidized flow
解釋
流體化流-
In aerated flow，solids are fluidized or suspended by the gas.
在充氣流動中，固體顆粒被氣體流化或懸浮起來。 -
These forms may include pneumatic conveying, moving beds or stick-slip flow, fluidized solids transport and nearly always one or more fluidized beds.
這些形式可以包括氣力輸送，移動床或粘附滑移流動，流化固體顆粒輸送，並且幾乎總是包括一個或多個流化床。 -
Fluidized granulation, the granule is around ball shape. its flow ability is good
流態化造粒，成粒近似球形，流動性好。 -
During the spray granulation, either solutions, suspensions or melted liquid are sprayed onto dried moist particles that are located in the flow zone of the fluidized bed, then the granulation process involving vaporization crystallization, dessication and chemical reactions completes in the same equipment
流化床噴霧造粒是將溶液、懸浮液或熔融液噴霧到已經乾燥或不完全乾燥顆粒的流化床床層內，在同一設備內一步完成蒸發、結晶、乾燥或化學反應的造粒過程。 -
These findings show that flow in fluidized beds lies squarely between the extremes of plug and backmix flow.
這些結果說明了流化床內流動恰好位於活塞流與返混流兩個極端之間。 -
It shows that fluctuation complexity parameter is a good means to identify flow regime which is only corresponding with fluidized status
就系統本質的運動而言，系統流化狀態在不同信號趨勢上是一致的，因此有理由認為漲落復雜性參數對應的僅是系統本身的一定運動狀況。 -
In this paper, through the cfd modeling of the ash - agglomerated fluidized bed gasifier, the gas molar concentration distributions in the bed with the influences of the oxygen flow rate from the central nozzle, the steam flow rate from the distributor and the pressure of the bed are studied
摘要通過cfd模擬了灰熔聚流化床氣化爐，考察了操作條件包括中心管氧氣量、分佈板水蒸氣量以及操作壓力對流化床氣化爐的氣相濃度分佈的影響。 -
And also we study the bubble flow behavior of the bubbling fluidized bed. the single bubble and continuous bubble formation, rise, break and coalesce characteristics are studied separately and compared with the experimental data. it shows good consistency
隨后研究了鼓泡床內的氣泡運動變化規律，分別模擬了單個氣泡和連續氣泡的生成、生長、破裂以及合併等的行為特性並且和實驗數據進行了對照，取得了較好的結果。 -
Investigation of gas - clusters two - phase flow in circulating fluidized beds
顆粒團聚物兩相流體動力特性的研究 -
In this paper. flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is studied. according to characteristic analysis, the model of completely mixing reactor in series is introduced to characterize real reactor as a theoretical model. on the basis of analog computing analysis and discussion of theoretical model. by means of pulse tracer method, experiments on residence time distribution ( rtd ) have been done in different conditions including the change of tracer level, feeding flow rate and circulation flow rate. the result shows when the ratio of circulation flow rate and feeding flow rate amounts to at least 4, the flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is very close to the model of completely mixing reactor in series. an amendatory model has been established by the regression method
作者首先在對反應器進行特徵分析的基礎上，建立了描述中試規模多級外循環流化床生物反應器流動特性的串級全混流模型，並對理論模型進行了模擬計算分析和討論，在此基礎上，作者分別在無循環和有循環（改變示蹤劑用量、流加流量和循環流量）的條件下，利用脈沖示蹤法對一到五級串聯外循環流化床反應器進行了停留時間分佈實驗，結果表明，在循環流量與流加流量的比值達到大於等於4時，中試規模多級外循環流化床反應器的流動特性接近串級全混流模型，通過數據回歸擬合的方法，建立了中試規模一到五級串聯外循環流化床反應器的流動模型。 -
A solid - liquid fluidized bed has been designed and installed, which will be used in the heat exchanging and descale field. the experimental study for distributor design was carried out and the particles distribution in the tubes of the solid - liquid fluidized bed under different operating conditions was studied by using the ccd measure system. experimental results show that heterogeneous pores distributor which was arranged in the inlet chamber of the solid - liquid fluidized bed can improve the nonuniform distribution of particles in the pipe bundle under high flow rate. the nonuniform decreases by decreasing the mount of pore, but the solid holdup decreases too. the particles distribution is influenced by the position of the heterogeneous pores distributor
實驗結果表明：在液固循環流化床進口段安裝可調節高度的變孔徑分佈板，能在較高的流速下，較好的改善固體顆粒在管束中的不均勻分佈；開孔率越小固體顆粒在管束中的分佈越均勻，但管束中粒子的平均固含率也越小；分佈板的安裝高度對顆粒的分佈有很大的影響，在實驗范圍內分佈板的安裝距離管束入口處越遠，顆粒在管束中的分佈越均勻。 -
In this paper, the two - phase flow behaviors of gas - solid circulating fluidized bed have been first studied by analysing experimental data. then, based on fractal theory wavelet package analysis ( wpa ) de - noising method was used to denoise solids concentration and pressure fluctuation signals. the solids concentration signals have also been investigated by wavelet multi - resolution analysis and wavelet package decompose, contributed to disclose the non - uniform flow structures of gas - solids phase
然後將基於分形理論的小波包消噪方法用於顆粒濃度和壓力波動去噪，並對氣固流化床中的顆粒濃度信號進行了小波多分辨分析和小波包多尺度分解，從新角度揭示了氣固流態化系統的非均勻氣固兩相流動結構。 -
The stimulus response technique has been extensively used to explore the flow characteristics of both gas and liquid fluidized beds.
激發-響應技術曾被廣泛地應用於探索氣體和液體流化床的流動特性。 -
Complexity parameter c2, fluctuation complexity parameter cf and algorithm complexity parameter c ( n ) have been adopted to analysis pressure fluctuation signals from a gas - solid fluidized bed, the variation of the three complexity parameters with gas velocity from fixed bed, bubbling fluidization to turbulence fluidization are studied, then compared in order to characterize regime behaviors. it is demonstrated that there exists a phenomenon named " recorded " in the regime transition from fixed bed to bubbling fluidization, the three complex parameters are believed to be a new technique for flow regime identification
結果表明，起始流化至鼓泡態轉變的過程中，復雜性參數表明氣固體系會進行一種所謂的「重構」現象，這與用k熵表徵起始流化態至鼓泡態之間變化時所得到的結果相一致，並能明確地指示固定床、鼓泡流化及湍動流化等不同流態之間的轉變過程，為流型識別提供了新思路。 -
This thesis is aimed to study the flow field in circulating fluidized bed ( cfb ) holier in cold state based on the system of particle image velocimetry ( piv ), several parts are included : the distribution of particles velocity in cfb boiler including radial velocity and axial velocity of particles ; the average radial and axial concentration distribution of particles in cfb boiler ; the average radial and axial size distribution of particles in cfb boiler
本文採用piv系統對循環流化床鍋爐冷態流場進行了試驗研究，研究的主要內容包括：循環流化床冷態流場粒子的速度分佈特性，包括粒子的徑向速度和軸向速度分佈；循環流化床顆粒的平均濃度沿徑向和軸向分佈特性；循環流化床顆粒平均粒徑的軸向和徑向分佈特性。 -
The relationship of the heat transfer coefficient with tea liquid concentration, heat transfer different temperature, vapor temperature, liquid flow rate, particle volume percent and different particle were studied. and analyzed the effect of liquid flow rate, particle volume percent on pressure drop. based on the character of inert particle fluidized bed evaporator, used the theorem, a mathematical model of inert particle fluidized bed evaporator heat transfer was proposed
設計和建立了惰性粒子流化床蒸發實驗裝置，進行了傳熱性能和流體力學的理論分析和實驗研究；研究了物料濃度c _ e 、傳熱溫差t 、蒸發溫度t _ v 、液體流量i 、惰性粒子體積分率_ s等操作參數對流化床蒸發器傳熱性能的影響，文中還分析了液體流量i 、惰性粒子體積分率_ s等參數對床層壓力降的影響。 -
Experimental results show that : under the same conditions, the heat transfer coefficient of inert particle fluidized bed evaporator is about 1. 7 times that of the vapor - liquid flow heat transfer. the evaporator has the abilities of preventing and cleaning fouling. at the same time, it can reduce wall temperature
實驗研究結果表明，在相同操作條件下，惰性粒子流化床蒸發器傳熱管壁溫明顯低於兩相流蒸發器，其傳熱系數為兩相流蒸發器的傳熱系數的1 . 7倍左右，操作過程中惰性粒子具有良好的防、除垢效果。 -
The work is mainly on numerical simulation of dense gas - solid two phase flow and the combustion and pollutant emission processes of circulating fluidized bed and w - shaped furnace applied by power plant
本文主要對高濃度氣固兩相流和電站鍋爐中的循環流化床和w爐內的燃燒和污染物排放過程進行了較為詳細的數值模擬研究。 -
In this thesis, autoregressive moving average ( arma ) models are applied to identify the flow regimes of two - phase flow. experiments are carried out on the facilities include gas - solid fluidized bed and gas - liquid two - phase flow pipelines. the results show that the methods are effective
本文基於arma （ autoregressivemovingaverage ）模型，對氣固流化床和氣液兩相流系統進行了分析並進一步對其流型進行了辨識，得到了一些有益的結論。 -
We successfully apply the two - fluid model ( tem ) and kinetic theory of granular flow studying the two dimensional dense gas - solid flow characteristics in the large scale circulating fluidized beds and the cold experimental system with piv. the results of simulation are in accord with others " simulation and experimental results. in the end, we make the three dimensional simulation for the cold cfb riser, which is closer to the factual operation and this experimental results
在對高濃度氣固兩相流的研究中，根據fluent軟體現有的條件和解決工程實際問題的需要，採用單氣固相雙流體歐拉模型，採用模擬紊流固粒流中普遍接受的方法「顆粒流的運動理論（ kinetictheoryofgranularflow ） 」 ，對大尺度循環流化床進行了二維數值模擬，與他人數值模擬結果和實驗結果進行了對比，檢驗模型的準確性。
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