stokes fluid 中文意思是什麼
stokes fluid
解釋
斯托克斯鈴-
First, according to the design requirement of hydraulic valve, the particular parameter of the valve is put forward, and the navier - stokes equation of the two - dimension impressible viscid fluid in the hydraulic valve is set up
本文選擇液壓閥中的溢流閥為具體研究對象。根據溢流閥的性能要求，確定了閥的具體參數，完成了溢流閥的設計。 -
Considering the characters of the viscoidal turbulent flow over high - speed train, the computing model of the outer fiow field for high - speed train has been established based on the incompressible fluid navier - stokes epuation and the turbulent model of ke two equations. the equation set of the flow field problem via finite element methods ( fem ) has been set up
根據高速列車粘性紊態繞流的特點，在較少簡化的條件下以navier - stokes方程和-兩方程紊流模型為基礎，建立了高速列車外流場的計算模型，在近壁區域採用壁面函數修正紊流模型。 -
The research aims at the demonstration and the mend of the design on the new purifier and presents a calculation method for solving the two - phase flow in fluid machine by the finite element method. after analyzing the two - phase flow in the new purifier by means of the continuum model, poisson equation, navier - stokes equation and continuous equation are derived and solved by using the finite element method. the solution on pressure, velocity and particle concentration simulates the departure well between oil and water, which proves the accuracy of the design on the new purifier
本文採用兩相流連續介質模型，由兩相分離流動理論得到控制方程，採用chorin的直接速度-壓力mac法的思路，對新型油水分離裝置內油水兩相流動作了細致的分析，同時首次把科氏慣性力引入兩相流模型中，進行分析和計算，將研究擴展到三維，並用有限元法分別解poisson方程、 n - s方程、連續方程的方法，對流場內壓力場、速度場、濃度場進行了分析和計算，較好地模擬了新型油水分離裝置內油水分離的現象，證明了設計方案的正確性。 -
In the turbulent flow, the fluid ’ s physical parameters has the stochastic change along with the time and the space, it is very difficult to carries on its rate process ’ s precise computation and the simulation with mathematics method, but unstable condition navier - stokes equation regarding open canal current of water transient motion suitable
閘后水流經過加糙的海漫段時，其水流狀態屬明渠紊流。流體中的各種物理參數，都隨時間與空間發生隨機的變化，很難用數學的方法對其運動過程進行精確計算和模擬。 -
For the case of transporting suspended fine sand, a single - fluid model is used to calculate the flow resistance by solving the navier - stokes equations. the computed agrees well with the measured. and for the case of transporting medium - sized sand, a two - layer model is used and the model produces a good agreement with the experiment data
對管道輸送細沙懸移質的流場，採用單流體模型進行數值求解n - s方程，計算結果與實驗資料相吻合;對具有分層流動的中沙管道水力輸送，採用兩層代數模型進廳了計算分析，阻力損失的預測結果與實驗吻合較好;最後對管道輸送粗沙的阻力特性和運動機理進行了分析探索，提出了進一步研究的方向。 -
Computational fluid dynamics ( cfd ) solver aimed to solve multi - physics problems on unstructured grids ( inviscid euler, navier - stokes flows, heat transfer ). f90 based. mpi, cgns, metis, lapack libraries used
計算流體動力學的解決方案，特別是針對在無結構性的組合上的多種物理學問題。 -
A new fluid - structure coupling numerical method is developed in the present dissertation. 2d / 3d navier - stokes equations and low renolds number turbulence model are solved in the fluid zone, while the structure models are solved in the solid zone. the boundary conditions are transferred between the two zones after each time step
該方法採用了準確的數學物理模型，在流體區域求解二維、三維favre平均的非定常navier - stokes方程，在固體區域對于不同的問題求解體振動模型，每一個計算時間步完成後，流體和固體之間傳遞一次邊界條件。 -
The model of fpsa ( inter - phase slip algorithm ) provided in phofvmcs, the software used in computational fluid dynamics, which solves the navier - stokes equations of each phase with the interphase interactions between two phase of water and air, including the interphase drag forces, interphase lift forces, interphase pressure and virtual mass forces, is employed with the difference scheme of upwind and the orthonormal grid
計算採用由phoenics （計算流體力學軟體）的ipsa （相間滑移演算法）模型，應用upwind （迎風）格式和直角坐標網格。 ipsa模型對每一相求解n - s方程，並考慮水-氣體兩相間的相間互互作用，包括相間阻力、相間升力、相間壓力和虛質量力。 -
Using fluid analyze software, the 3d turbulent flow is stimulated based on navier - stokes equations and k - model. the turbulent flow through axial flow pump impeller is simulated by using the non - uniform triangle mesh system and the finite volume method. calculated results are presented at the design operating condition for the impeller in detail, which give a valuable reference to improve the performance of the impeller
最後，應用cfx流體分析軟體，基於n - s方程和標準-紊流模型，採用非結構化網格技術，用聯立求解各變量代數方程組的方法對設計工況下的軸流泵葉輪內部的三維紊流場進行了詳細的數值計算與分析，並預測其性能。 -
An implicit lu - sgs ( lower - symmetric gauss - seidel ) finite - volume method is used for solving the full, compressible, two - dimensional navier - stokes and species transport equations. for turbulence closure a two equation ( k - e ) model is used. the combustion process in chemical nonequilibrium is modeled by a 7 - species, 8 - reaction steps finite - rate chemistry and is implicitly coupled with the fluid motion
採用lu - sgs有限體積法求解了包括兩方程（ - ）湍流模型和7組元8方程有限速率化學反應模型的緊耦合二維n - s方程，數值模擬了氫燃料在燃燒室內的化學非平衡燃燒過程。 -
Its contents include results on the finite element method for the dynamics equations, the lumped mass finite element methods and error estimations for solving the parabolic problem, fourth order nonstationary elliptic equation, the nonstationary stokes problem and bingham fluid problem, the finite element methods and error estimations for solving linear and nonlinear the hyperbolic equations
內容包括關于求解工程力學方程有限元方法的最新結果。解拋物問題、非穩態四階橢圓方程、 stokes問題以及管道bingham流的質量集中有限元方法及其誤差估計，解線性與非線性雙曲型方程的有限元方法及其誤差估計。 -
Direct numerical simulation is used for solving the navier - stokes equation and lagrangian approach is used to track the bubble trajectories through the action of forces imposed by the fluid and the gravity
採用直接數值模擬方法模擬流體流動，並用拉格朗日法跟蹤氣泡受流體和重力作用所產生的運動軌跡。
分享友人