粘性流研究 的英文怎麼說
中文拼音 [niánxìngliúyánjiū]
粘性流研究
英文
viscous-flow investigation- 粘 : 粘動詞(粘附) glue; stick; paste; adhere to; bond
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 研 : 研同 「硯」
- 究 : Ⅰ動詞(仔細推求; 追查) study carefully; go into; investigate Ⅱ副詞[書面語] (到底; 究竟) actually; really; after all
- 研究 : 1. (探求) study; research 2. (考慮或商討) consider; discuss; deliberate
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Several research advances in viscose fluid mechanics
粘性流體力學研究的若干進展Then the judging method is proposed, and the proposed method can consider the stress history and viscosity shear strength of soft soil. in this paper, a fem program dpfbm1. 0 ( double plastic foundation beam method ( version 1. 0 ) ) is established. with this program, the influence of some parameters on foundation excavation is fully studied, the parameters include : compression modulus, cohesive strength, angle of internal ficiction, effective angle of internal friction, the embedded length of the wall and building load
針對當前國內外彈性地基梁法存在的缺陷,基於對軟土流變性的研究,採取了剪應力判斷彈塑性狀態,以改進和完善基坑工程彈性地基梁法,推導了彈性狀態下地基反力系數的近似解,提出了採用剪應力組合判斷土彈簧彈塑性狀態的方法,編制了相應的彈塑性共同變形法分析程序dpfbm1 . 0 ( doubleplasticfoundationbeammethod ( version1 . 0 ) ) ,並採用該程序分析了壓縮模量、粘聚力、內摩擦角等參數變化對基坑工程的影響。4. based on the viscous hydrodynamics, the leakage characteristics of newton liquid that is transmitted by helical gear pump are researched for the aim of the least power loss, and the leakage model is founded, the mathematic models of the radial and the axial leakage are gained. at the same time the optimal radial leakage and axial leakage are got, and the numerical calculation is achieved
基於粘性流體力學,以功率損失最小為目標,首次對牛頓流體在斜齒齒輪泵中的漏流特性進行了研究,建立了泄漏模型,分別得到了斜齒齒輪泵的徑向和軸向泄漏的數學計算模型;同時得到了斜齒齒輪泵最佳徑向間隙和最佳軸向間隙,並在此基礎上進行了數值計算。The resonant flow was researched in this paper, which is an incompressible, inviscid fluid with surface tension and different variational bottoms ; the effects of different variational walls on the nonlinear surface waves were analyzed
本文通過對具有表面張力的、不可壓縮、無粘性流體流過不同壁面時的共振流動進行研究,分析了壁面變化對非線性表面波的影響。A revised fuzzy control algorithm was developed to accelerate iteration convergence in numerical fluid dynamic simulation by adjusting the value of the under - relaxation factor
摘要在原來研究工作的基礎上,提出了一種改進的模糊控制方法,用以調整粘性流場迭代計算中亞松馳因子的值。A multi - block incompressible viscous flow solver has been developed that can be applied to simulation of a variety of ship maneuvering related flows and calculation of hydrodynamic forces. validation and verification of the solution procedure are carried out on several model problems with good agreement to experimental and numerical results. the present block - structured viscous flow solver is based on solving the reynolds - averaged navier - stokes ( rans ) equations with a second - order cell - centered finite volume method ( fvm ) on non - staggered grids
本文即在這種背景下,瞄準船舶操縱水動力預報方面的國際前沿和熱點課題,通過對現代船舶粘性流計算方法的研究,自主開發了一個船舶操縱粘性流求解器,並將所開發的求解器成功地應用於一系列和船舶操縱問題相關的粘性流動與水動力計算,得到了令人滿意的結果。The simple method is used for the pressure coupling, and the strong implicit procedure ( sip ) is adopted for solution of the discretized equations
基於上述方法,採用c + +程序設計語言,研究和開發了一個船舶操縱粘性流求解器( vsman ) 。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。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。Whereas, the research on torque characteristics, working fluid, two - phase flow in lvc has n ' t been mature by now. further study is undertaken based on former researches in this paper
但是目前對于液體粘性聯軸器的轉矩特性、工作流體特性以及硅油空氣的兩相流體流動與傳熱特性的研究,並不十分成熟。On three - dimensional numerical solution of incompressible viscous flow by osfem abstract an algorithm for solution of three - dimensional navier - stokes equations for incompressible viscous flow is developed. a decoupled algorithm based on the operator - splitting technique is applied
由於三維粘性流動的復雜性,例如流動邊界的選取、控制條件的給定以及混合運算元方程高精度數值解法等,都值得探討和研究。Second, the structural dynamic equations for blades are introduced in this paper. through numerically solving the aerodynamics - structure coupled equations, a 2 - d unsteady viscous flow in a single cascade is investigated under flow - structure coupled conditions, and a preliminary analysis of the cascade flutter is prosecuted
其次,本文引入葉片結構動力學方程,通過數值求解氣動結構耦合方程體系,研究了氣固耦合條件下葉柵內的二維非定常粘性流動,並初步進行了葉柵的顫振分析。In the numerical solution algorithm, the method of characteristics, analytic method and galerkin finite element method ( galerkin - fem ) can be chosen to solve the advective equation, diffusion equations, reaction ( source / sink ) equations, propagation equations and pressure poisson equation, respectively. the developed new algorithm has been verified using analytical solution of circular conduit flow in a reynolds number range of 100 < re < 1 000 and experimental data of the laminar flow over a backward - step facing step. the flow properties are well characterized by this three - dimensional numerical model
本論文在評述三維粘性流動數學模型已有研究成果的基礎上,著重在數值計算方法的選擇和定解條件的給定對數學模型計算結果的影響進行了研究,並首次提出了求解三維純對流方程的高精度的擬協調單元法,建立了三維低雷諾數re流動的數學模型,並在圓管流動、臺階突擴矩形管道流動中得到驗證和應用。Plastic deformation happened in the worn surface where fe element was found, so pam micro - fiber supported part of the load and prevented the further deformation. on the condition of high speed and high load, the worn surface of pam1 / nylon 6 composites was nearly melted and formed comparative uniform transfer on the surface of steel, which accounted for the rather low wear mass loss. the infrared analysis showed that the a small quantity of transition of crystal form from into of nylon and its composites happened during the friction because of the high temperature and strong sheering strength
通過對復合材料耐磨性能研究表明:復合材料的摩擦系數隨載荷的增加而逐步下降,且磨損表面有明顯的塑性變形;從能譜分析結果來看,復合材料表面有fe的存在,表明pam微纖承受了部分載荷,並阻止了基體的進一步塑性變形及粘著轉移;在高速高載時, pam1 /尼龍6磨損表面處于粘流態,並在鋼環表面形成了連續的轉移膜,表現出較好的耐磨損性能,且在高溫和強剪切力的作用下,材料基體發生了少量的晶體向晶體的轉移。However, the research on torque characteristics, working fluid, two - phase flow of lvc has n ' t been quite mature at present. embedded studies are undertaken based on the former researches in this paper
但是目前對于液體粘性聯軸器的轉矩特性、工作流體特性以及硅油空氣的兩相流體流動與傳熱特性的研究,並不十分成熟。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。The current demands for three dimensions viscous flow in turbo machinery are more and more treated. this thesis presents a computational study of the flow field generated in a centrifugal fan and how that flow field changes through the downstream stator vane
葉輪機械內全三維粘性流的計算越來越受到國內外學者的重視,是當前國際范圍內流體機械研究中的一個十分活躍的領域之一。The work covered in this thesis is hoped to shorten the gaps to the world advanced level in prediction of hydrodynamic forces on maneuvering ships. due to the complexity of ship maneuvering viscous flows, the computational methods for such flows are nevertheless in its infant, t
本文在研究基礎薄弱、研究條件差的情況下對船舶操縱粘性流動及水動力計算進行了有益的探索,取得了一定的成功,但仍有許多問題值得進一步探討和研究。First, a 2 - d unsteady viscous flow in a vibrating cascade is investigated under flow - structure uncoupled conditions
本文首先研究氣固非耦合條件下的振動葉柵內二維非定常粘性流動。Therefore this approach has become the highlight of the cfd field, and has received much attention. based on this optimization design theory, this thesis deeply studies some kinds of aerodynamic design problem in inviscid and viscous flow, such as aerodynamic inverse design and drag reduction problems. at the same time, the aerodynamic design optimization programs have been developed successfully
基於該設計方法的研究價值和應用前景,本文通過應用控制理論的優化設計方法,對無粘性流動和粘性流動情形下不同類型的氣動設計問題進行了深入研究,如反設計、減阻問題研究,成功發展了相應的氣動外形優化設計程序。分享友人