粘性流層 的英文怎麼說
中文拼音 [niánxìngliúcéng]
粘性流層
英文
viscous flow region-
The mechanisms summarized are as follows 1 ) compressional normal stress ; 2 ) ductile and / or viscous deformation in bedding fault since incompetent bed is susceptible to plastic flow ; 3 ) higher likelihood of clay / shale smearing ; 4 ) foliation fabric whose sealing capacity is enhanced greatly in direction perpendicular to foliation
其機理可歸納為四個方面: 1 )壓性的正應力; 2 )以韌性及粘性變形為主,因為非能幹巖層易塑性流變; 3 )塗抹效應強; 4 )面理化組構,垂直面理方向的封閉能力大大增強。In the study of the effect of electric field on the binding property of copper foil - covered veneer sheet, because of lack of experimental method and the complexity of the object studied, it is not found the regular effect of electric field on the binding strength between copper foil and veneer sheet or on the inter - laminar binding strength of veneer sheet. but it is further testified that dc electric field makes the free linkage generated during solidifying of epoxy resins orient along the direction of electric - power line
在直流電場對覆銅箔板粘接性能影響的研究中,由於受實驗手段和研究對象復雜性的限制,沒有發現直流電場對覆銅箔板銅箔與基體及基體層間的粘接強度產生規律性影響,但在研究中進一步證實了直流電場會使環氧樹脂在固化過程中形成的交聯鍵沿電場方向取向。The instability in the natural convection boundary layer initiates with the buoyancy eigenmode and develops into non - linear stage with the turbulization of the buoyancy eigenmode. in the mean time, the invisid eigenmode at the inflexion point appears and begins to increase at the outer layer. experimental results show that the turbulent layer near the maximum velocity point can be detected while the reformed grashof number
自然對流邊界層的穩定性由浮力振型失穩開始,並隨著浮力振型的湍流化進入非線性階段,與此同時,無粘性振型在外層開始失穩。實驗結果表明,修正格拉斯霍夫數grashofThe boundary layer can indicate the comprehensive influences of oil reservoirs, the physical properties ( reservoir porosity, permeability, fluid viscosity and its composition ) of inside fluids and development conditions such as pressure gradient : the layer thickness reduces with the rise of capillary radius ; when capillary radius is fixed, the thickness increases with viscosity rise ; the more polarity composition content is, the more obvious the absorption, the thicker the boundary layer, more and more obvious the characteristics of non - darcy filtration
邊界層反映了儲層、流體物性條件(儲層孔隙度、滲透率、流體粘度、組分)和開發條件(壓力梯度)的綜合影響,認為邊界層厚度隨著毛管半徑的增大而減小;在毛管半徑相同的情況下,邊界層厚度隨壓力梯度的增大而減小,最後達到一個臨界值;毛管半徑一定時,邊界層厚度隨粘度增加而增大;極性組分含量越大,吸附越明顯,邊界層厚度越大;邊界層厚度越大,非達西滲流特徵越明顯。In the third chapter, the mathematical models of project system have been established, and simulation has been done on the simulink enviroment of matlab software kits. the simulation focus on the effects of main parameters on the dynamic characteristics of speed control system, and the main parameters include viscosity damp coefficient and friction torque of electrical motor shaft, internal leakage coefficient of pump / motor of hydraulic circuits, gas volume of pressure accumulator, viscosity damp coefficient of cylinder piston and different running building floors, etc. at last, theoretical research effects of the flow and pressure pulsation of pump / motor on car speed and oil volume leakage theory are discussed. the fourth chapter of this thesis concerns the research on the key items about hydraulic power control system according to the ens 1 - 2 and other hydraulic elevator standards
論文第三章針對組成系統的各個模塊進行了機理建模,並且通過matlab軟體中的simulink圖形化模擬環境進行了本課題系統的模擬研究,主要針對影響系統特性的主要參數變化,動態分析系統的輸出特性,在上下行工況中,分析了電機軸系粘性阻尼系數、軸系摩擦力矩、主迴路蓄能器迴路液壓泵馬達內泄漏系數、蓄能器氣體容積、液壓缸柱塞粘性阻尼摩擦系數以及不同運行樓層工況等參數對系統特性的影響;最後對軸向柱塞泵馬達的流量壓力脈動對電梯轎廂速度的影響和蓄能器內油液體積損失機理進行了理論研究。Therefore the upper layer is water flow and the nether layer is debris flow. the moving water compressive force and the shear force of interface are taken into account
將粘性泥石流與主河的匯流視為分層流研究,上層為主河水流模型,下層為水下泥石流運動模型。Firstly, under the condition of constant viscous dissipation, the field coordination equation was induced for steady laminar convective heat transfer by the conditional variational principle based on the extremum principle of heat transport potential capacity dissipation
首先在粘性耗散一定的條件下以熱量傳遞勢容耗散取得極值為優化目標,運用變分方法導出了層流對流換熱場協同方程。The papers also brings forward the design parameters of the material critical suspending speed and the wind capacity according the theory of the air transportation, analyses and build up the condition of material diameter and airflow speed of the gas - solid current locating the separating interface
論文根據氣力輸送理論求出螺旋氣力吸取料裝置物料的懸浮速度及風機風量的設計參數,分析確定位於分離界面處的氣固二相流處于層流狀態即處于粘性磨擦阻力區的粒徑條件與氣流速度條件。In order to predict hydrodynamic characteristics a computational system is developed including determination of the pressure distribution on a wing section by use of the conformal mapping method and panel method respectively and of the flow in boundary layer according to the thin shear layer approximation ( tsl ) for navier - stokes equation approach. the wing sections of naca4412 and naca0012 are applied to test the computational system. the numerical inspection shows that the panel method with better precision and the momentum and the displacement thickness of boundary layer can be used to complete this calculation
本文分別用守屋的保角變換法和基於源匯渦分佈的面元法,建立了計算槳葉表面壓力分佈的數學模型;應用納維-斯托克方程的薄層近似理論模式和有限差分數值方法,建立了計算機翼表面邊界層內部流動的數學模型;應用槳葉表面邊界層內部粘性流動和外部勢流流動在邊界上的匹配演算法,建立了槳葉表面二相流流動的計算方法和相應的計算機程序。Only clouds of points instead of grids are distributed over the computational domain and the spatial derivatives are estimated using a least - square curve fit on local clouds of points. the paper gives discrete form for euler equations on base of gridless method, and adopts five steps runge - kutta scheme for time - marching. the numerical results have been obtained for the 2 - d flows over airfoils or multi - element airfoils using the method presented
本文首先對無粘euler方程進行無網格離散,並運用顯式runge - kutta格式推進求解,成功地數值模擬了二維單段和多段翼型的繞流;在此成功的基礎上通過在euler方程的右端加入粘性項,使求解方程變為層流navier ? stokes方程,得到了翼型繞流,數值結果顯示出粘性的影響。Kaolinite - organic intercalation compound possesses not only the unique adsorptivity, dispersivity. porosity, rheological behaviour and surface acidity of the clay mineral but also the multivariate functional groups and the reactivity of the organic compound. as a new type of mineral materials, it has extensive potential application in catalysts, functional supporter, adsorbents and advance ceramics
高嶺石有機插層復合物既具有粘土礦物特有的吸附性、分散性、流變性、多孔性和表面酸性,又具有機化合物的多變功能團和反應活性,作為新型礦物材料,在催化劑、功能載體、吸附劑、先進陶瓷材料等方面具有廣闊的應用前景。This dissertation has on the research and design of a micro turbine engine as background and it is for the purpose of comprehending viscous flow behaviors in micro scaled conditions and that in the mini - turbine cascades. a mini wind tunnel is designed and set up which also can be used in other micro flow experiments. on the basis of this mini wind tunnel, three mini flow experiments, including micro jet experiment, micro boundary layer experiment and mini - turbine cascades experiment, have been carried out
本文以某型微型渦輪噴氣發動機研製為背景,以認識微尺度下粘性流體流動狀態及其機理和微渦輪葉柵通道內部流動特性為目的,設計並搭建了除本實驗外還可供其他流體力學實驗使用的微型風洞,並在該微型風洞基礎上進行了微尺度射流實驗、微尺度壁面邊界層實驗和微尺度渦輪葉柵實驗。Analytical solution was obtained for one - dimensional large - strain and non - linear consolidation of single - layered soil under time - dependent loading on the basis of some simplifications. meanwhile, semi - analytical method was proposed for solving more complicated consolidation problem and corresponding computer code was developed for one - dimensional large - strain consolidation analyses, in which, complicated factors such as selfweight, non - linear and rheological properties of soft soils can be all taken into consideration. the correctness of the method and that of the code were verificated through comparing the results with those obtained from available analytical solutions
然後根據離散和解析相結合的原則,利用已有的成層地基一維線彈性固結解析解,建立了能求解復雜一維固結問題的半解析方法,編制了相應的能綜合考慮土的非線性、流變、成層性、自重以及變荷載等復雜因素的軟粘土一維大應變固結計算程序,並通過與已有各種解析解的比較對半解析法及其程序的正確性和有效性進行了驗證。Firstly, based on n - s equation, the momentum differential equation ( contained centrifugal force ) is derived by simplification in boundary layer and then integrates the differential equation over the thickness of the boundary layer, the momentum integral equation is deduced. the dimensionless centrifugal factor is introduced, then the solution of the momentum integral equation is obtained. the dimensionless group is introduced to determined separation of boundary layer
本文首先根據粘性流體力學的一般方程,通過在邊界層內進行量級比較,在所限定的范圍內得到了含有離心力的邊界層動量微分方程並給出其滿足的邊界條件,然後對該微分方程在邊界層內積分得到離心泵葉輪邊界層動量積分方程,在求解過程中引入了無量綱離心因子,並作了相應合理的假設,得出積分方程解的一般表達式,並引入以邊界層動量損失厚度為主要特徵量的無量綱參數對邊界層分離進行評價。The numerical simulation for waves generated by a moving body in a viscous two - layer fluid
兩層粘性流體中運動球體尾流的數值模擬It is therefore of great theoretical and practical significances to make carefully and systematically studies on the theories of both small - strain and large - strain consolidation of layered soft clayey soils with non - linear and rheological properties
因此系統深入地開展更貼近實際的成層軟粘土地基大、小應變非線性流變固結理論研究具有重要理論和實際意義。Based on the iterative methods and general analytical solution available for the problem of one - dimensional linear elastic consolidation of layered soils, a semi - analytical method is established herein for complex one - dimensional consolidation problems. by adopting linear rheological model of three units and non - linear rheological model of time lines, the semi - analytical method is respectively applied to solve the problem of one - dimensional consolidation of layered soft clayey soils with linear or non - linear rheological characteristics
基於多層地基?維線彈性固結解析解和迭代法,建立了能求解復雜一維固結問題的半解析演算法,並將其分別應用於求解成層軟粘土線性流變一維固結問題(採用三元件線性流變模型)和成層軟粘土非線性流變一維固結問題(採用時間線非線性流變模型) 。Abstract : a numerical investigation of three - dimensional separated flows about a hemisphere - cylinder is presented. the analysis has been restricted to transonic and laminar flows. results are given for the complex flow field structures including shock, boundary layer, separated flow, vertical flow and their mutual effects. the topological structures of the separated flow is shown
文摘:本文數值模擬了半球柱在跨音速、中等攻角時的粘性層流繞流,研究了流場中的復雜三維分離形態結構,其中包含流向與橫向的主分離、二次分離、以及激波邊界層的相互干擾,解釋了在球柱接合部精確捕獲的壓力波動與流動主分離、二次分離的影響關系,這個現象是前人的計算5 , 6未捕捉到的。Base on our experimental results, a conclusion can be deduced. when the polymer and silicate layers have some capacity, the polymer chains with great molecular weight can exert much greater shear and stress, which is favorable to the exfoliation. while, the huge molecular weight could lead to the loss of fluidity of the polymer melt
在樹脂基體于粘土片層具有一定相容性的前提下,分子量較大的分子鏈對粘土片層可產生較大的作用力,利於粘土片層的剝離;但過大的分子量又降低了聚合物熔體的流動性,妨礙了粘土的進一步插層。As we know, when meeting these soils, many breakdown and danger will occur, such as the blockings, which has attracted attention of many construction personal on site. however, at present, there exist many unknown fields in blocking. firstly, the definition of blocking is not interpretative
但是,如果地層是粘粒含量較少的卵石層、砂土地層、風化巖地層,進入壓力艙的土體就很難形成這種「塑性流動狀態」 ,從而嚴重阻礙施工進程甚至造成施工事故,閉塞就是常見的一種施工障礙,已經引相關方面的重視。分享友人