laminar flow 中文意思是什麼
laminar flow
解釋
層硫-
The automated scanning microscope has been installed in a laminar - flow tunnel in the cosmic dust lab, which is just around the corner from the stardust lab
自動掃描顯微鏡已經安裝在離「星塵實驗室」不遠的拐角附近、 「彗星塵埃」實驗室的一個層流通道中。 -
Laminar flow of foam fracturing fluid in fractures
泡沫壓裂液在裂縫內的層流流動 -
Verification regulation of gas laminar flow transducter
氣體層流流量傳感器檢定規程 -
Friction characteristics of oscillatory laminar flow in straight tube
圓直管內層流振蕩流的摩擦特性 -
Heat transfer will worsen if structure parameters of the spring inserts are not fit. the paper think that the mechanism of heat transfer enhances of the spring inserts is the laminar flow lining is thinner because of librating of the spring inserts, accordingly the part of convection is enhanced. but the part of boil is not influenced
通過彈簧插入物的各個參數對傳熱性能的影響分析，認為彈簧插入物對豎管降膜蒸發傳熱強化的機理主要是彈簧的振動加強了液膜的湍動，減薄了層流內層，從而強化了對流傳熱分量，但對沸騰傳熱分量沒有影響。 -
This requires you to have all fingers and thumb together and pointed straight into the path you want the arm to follow - think in terms of feeling the onrush of water almost exclusively at your finger / thumb tips and nothing but smooth laminar flow across the tops and bottoms of your fingers
需要五指並攏，徑直指向並進入手臂隨之入水的路徑，手掌入水時，要感到水流猛沖手指和大拇指尖，並感到水流平穩地流過手心和手背。 -
With the computing program, flow around the square cylinder is resolved at first, and the period of laminar flow is simulated successfully. during the period of vortex street ( re = 100 ), the periodically evolutionary phenomena of the flow behind the square cylinder can be seen
利用計算程序，本文首先對方柱繞流流動進行求解，成功模擬了方柱繞流層流階段的流動和渦街階段（ re = 100 ）方柱尾流的周期性變化現象。 -
According to non - newtonian fluid mechanics theory and mathematical method, conbined with plunger moving property, the hypothesize fluid is imcompressive, hydraulic radius of flow of liquid in crevice is very little, and it is laminar flow, the flow is treated fixed continuous flow at every instant position of plunger, equation of motion and boundary condition were set up in condition of concentric and eccentric of pump barrel and plunger
運用非牛頓流體力學理論和數理方法，結合抽油泵柱塞運動特點，假設液體為不可壓縮的，液體在縫隙中流動的水力半徑很小，呈層流流動，柱塞在每一位置的瞬間，流動做定常流處理，建立了泵筒與柱塞同心和偏心兩種情況下運動方程和邊界條件，引入無量綱坐標、無量綱速度和柱塞與泵筒偏心配合時的縫隙高度，並給出縫隙流流速、流量的解析解。 -
Testing for leaks in the filters associated with laminar flow clean rooms and clean work stations by use of a condensation nuclei detector
用冷凝核探測器對層流無菌室及無菌工作站配備的過濾器進行檢漏試驗 -
When meet laminar flow, the floater sometimes can see, sometimes can t see, when meet heavy flow, make the floater under the surface of water, namely the elasticity is moderate
平流時自見不見，大流時剎綆至漂入水面下，即松緊適中。 -
The main equipment here should be : pipette, refrigerator, balance, low speed centrifuge, vortex mixer, mobile uv lamp, etc. it can use laminar flow cabinet for the reagent preparation
儀器設備主要應有加樣器、冰箱、天平、低速離心機、混勻器、可移動紫外燈等。可使用超凈工作臺作為試劑配製操作臺面。 -
For fluids with high viscosities such as polymers, effective mixing is not achievable by turbulent flow and laminar flow is the only method for mixing of fluids with high viscosities
對于聚合物這樣的高粘物系，不可能產生湍流來產生高效混合，層流混合是高粘流體唯一可能的混合方式。 -
The experimental results of the flow characteristics of the mmc heat sink indicate that the critical reynolds number signifying the transition from laminar flow to turbulent flow is in advance ; under the same experimental conditions, the variation in entrance direction of the microchannel inlet and outlet has little effect on the microchannel ; the experimental values of the friction factor of the de - ionized water in a microchannel agree well with those calculated using the theoretical laminar formula ; furthermore, a comparison of the experimental results and simulation results shows that navier - stokes equation and rng - turbulence model can be used to model the laminar and turbulence flow regions in a microchannel ; meanwhile, the correlations of the flow resistance in the turbulent flow regions for the de - ionized water as the working fluids are obtained from experiments
對歧管式單通道熱沉流動特性的研究結果表明，微通道內流體流態由層流向紊流轉變的臨界雷諾數提前;改變流體的進出口方向對熱沉總壓降造成的影響很小;摩擦系數的實驗值與理論值較接近;數值模擬結果能夠與實驗值較好吻合;並由實驗給出了紊流區流動阻力的實驗關聯式。此外，選用十二烷基硫酸鈉（ sodiumdodecylsulphate ， sds ）以及烷基多糖苷（ alkylpolyglycoside ， apg ）作為減阻添加劑，研究了表面活性劑添加對微通道流動特性的影響。 -
Comparison of flow regimes is made for different reynolds - number flows and mesh refinement. the current study for the laminar flow over a backward - step facing step explores the influence of the sidewall on the development of three - dimensional flow for re > 400. meanwhile, this paper attempts to study on some important aspects of time - dependent incompressible viscous flow
本論文的主要研究成果有： 1 、評述了三維粘性流動數值模型的研究現狀，分析了各數學模型的建模思想及相應的數值計算方法，提出了當前存在的高精度的數值計算方法和邊界條件的適定性問題。 -
3 、 the single - phase laminar flow and heat transfer has been calculated by different discredited scheme in helical tube and the results are very in accord with the obtained experimental data
3 、採用不同的差分數值離散格式，對螺旋管內單相層流流動換熱進行了數值計算，深入了解螺旋管內單相流動及強化換熱機理，其計算結果和已有的實驗數據非常吻合。 -
The characteristics of flow field in boundary layer are different from that of laminar flow and turbulence. so, it was not ignored
邊界層雖很薄，但由於其水流特性與一般的層流、紊流特性相差甚大，因而它對水流的影響是不可忽略的。 -
The result shows that the heat transfer coefficient within the hollow fiber module with laminar flow can be calculated based on the correlation. by analyzing the equation, it was founded that the heat transfer coefficient under laminar flow is almost independent of the feed flow rate. numerical simulation of temperature distribution in hollow fiber membrane module with laminar flow was carried out
首先採用純水為研究體系，研究分析了中空纖維管內的傳熱系數，研究表明，纖維管內的流動屬于層流狀態，其邊界層傳熱系數可用關聯式來計算，由此式看出，層流狀態下，流速對傳熱系數的影響很小。 -
The lab table for the measurement of flow between two parallel planes is designed. the measurement of the laminar flow between two parallel planes that the distance between the two parallel planes is 2. 25mm and 1mm is performed
建立適于兩平行平板間流動的測量平臺，並使用mpiv對板間距h = 2 . 25mm和h = 1mm的兩平行平板間層流流動進行測量，得到其充分發展段的速度分佈。 -
This dissertation work includes two parts : one is two - dimension micro - particle image velocimetry ( mpiv ) measurements of the flow field between two parallel planes. the other is numerical investigation of the laminar flow within the two infinite parallel planes, which has different roughness, by using universal cfd software
本文工作包括兩部分內容：使用兩維微尺度粒子圖像速度儀（ micro - piv ）對兩平行平板間層流流動進行實驗研究，並應用通用軟體對具有不同相對粗糙度的無限大平行平板間層流流動進行數值模擬。 -
For instance, the development of the boundary - layer shape parameter can be prescribed on the upper surface to allow for maximum lift or extended runs of laminar flow, depending on the design requirements
比如開發了邊界層的形狀參數，可以指定允許的最高表面上取消或延期舉辦層流、視乎設計要求
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