穩態水流 的英文怎麼說
中文拼音 [wěntàishuǐliú]
穩態水流
英文
steady state water flow- 穩 : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
- 態 : 名詞1. (形狀; 狀態) form; condition; appearance 2. [物理學] (物質結構的狀態或階段) state 3. [語言學] (一種語法范疇) voice
- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 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...
- 水流 : 1. (江河) rivers; streams; waters2. (流動的水) current; water flow; fluent; flow; [水文] stream current
-
For a soil or rock of water - lacked, a heat transfer theoretical model is developed, which is a steady or unsteady, the results show that reservoir temperature, thermal diffusion coefficient, inlet temperature, flow rate of and run time of ground source heat pumps have an effect directly on heat transfer process of dhe. it can deduce that intermit running is favorable for this type of soils and rocks
對于貧含水地下巖土層建立了穩態與非穩態傳熱的理論模型,分析結果表明,巖土層的熱儲溫度、導溫系數、埋地換熱器進水溫度、流量以及地源熱泵系統的運行時間或開停機比,都對埋地換熱器的傳熱過程產生直接影響,可以推斷,對于該類型巖土層的地源熱泵系統,採用間歇運行將是有利的。Second, based on the characteristic of the receiving water studied in this paper, develope a dynamic one - dimension water quality model for nanbei river in zhangcha town of foshan city, and develope a program of water quality model based fortran powerstation. and then, calculate the concentration of codcr in receiving water using the simulation results of swmm and analyze the effect on the environment of receiving water by intercepting ratio. at last, the construction investment and operational and administrative expenses of intercepting trunk sewer 、 pumping station and sewage farm is calculated and the relation between them is discussed
其次,本文根據研究區受納水體的特點,建立了佛山市張槎鎮南北大涌的一維非穩態水質模型,相應地開發了基於fortranpowerstation平臺的水質模型計算程序,並在swmm模型模擬結果的基礎上,利用本文編制的水質模型程序計算了不同截流倍數時南北大涌codcr濃度的時空變化過程,分析了截流倍數對河涌水環境質量的影響。In order to improve the utilization efficiency of energy and equipment, a general steady simulation model of complex cross - feed multi - effect evaporation was established for the purpose of in - depth research on rule of multi - effect evaporation. in this model, the energy - saving measures, including extra steam being led off to preheat material liquid, the condensation water flash and solution flash, were adopted, and the solid separation was also considered in the process of evaporation
為了提高多效蒸發系統能量與設備的利用效率以及深入研究多效蒸發過程的規律,建立了帶有冷凝水閃蒸、溶液閃蒸和引出額外蒸汽預熱原料液等節能措施並考慮蒸發過程有固相析出的復雜錯流多效蒸發穩態模擬通用模型。3. for the two - region model of one - dimensional solute transport through heterogeneous soils considering scale - dependent dispersion and immobile region under steady state flow, the numerical model is obtained by characteristic finite element method
對于穩態水流條件下,非均質土壤中考慮水動力彌散尺度效應以及不動水體存在時,一維溶質運移的兩區模型,建立了相應的特徵有限元數值模型。The problems from sediment discharge for de - siltation and the relative stability of fiver channel can be solved through the study on the main indexes such as flow rate, silt concentration and etc. based on the analysis of sediment - carrying capacity of flow and the law of river channel evolution
在分析水流挾沙力和河槽水力形態規律的基礎上,研究調水調沙的流量、含沙量等主要水沙指標,可以解決河道輸沙減淤和河槽相對穩定問題。It is reasonable and practicable that the equilibrium relationship between the gas relative humudity and the moisture of the pile is introduced into the mathematical simulation in transient process of the spontaneous heating
結果還表明,把氣流相對濕度與煤堆含水量之間的平衡關系引入自熱過程的非穩態數學模型,不僅是可行的,而且能夠更客觀地描述實際煤堆的自熱過程。The dynamic adjustment of an alluvial river has a tendency that the entropy production or the rate of energy dissipation of flow is minimum rather than the entropy is maximum when a river is in a relative equilibrium condition
當河流處于相對平衡狀態時,水流的熵產生或能耗率為最小值。最小熵產生原理或最小能耗率原理保證了河流在相對平衡狀態的穩定性。This theoretic model employs the basic idea of correlation measurement, achieve the density wave speed by the correlation of the signals of upper and lower sensors, and get the total flow rate and water cut through the theoretic relationship of density wave speed and total flow rate as well as holdup with the help of drift flux model so as to accomplish the oil / water two - phase flow measurement at last, using the limited available experiment data, the theoretic model has been simplified into an applicable linear alternative which is suitable to homogeneous oil / water two - phase flow measurement to accomplish the oil / water two - phase flow measurement using the density wave phenomena is of highly theoretically valuable for density wave theory research as well as oilavater two - phase flow measurement research. to develop new type oil / water two - phase flow instrumentation based on this theoretic measurement method will be very applicable and promising
在此基礎上,針對穩態密度波理論提出了基於密度波理論的油水兩相流測量理論模型,該模型以密度波傳播理論作為基礎,通過上下游傳感器信號相關獲得密度波傳播速度,利用密度波傳播速度與總流量以及持相率的理論關系結合漂移模型來求解總流量和含相率,實現油水兩相流的測量,在理論分析的基礎上,在實驗資料有限的條件下,對基於密度波理論的油水兩相流測量理論模型作了極限的簡化,提出了本文油水兩相流測量理論方法應用在測量均勻油水兩相流中的實用線性模型。A variety of mathematical models based on continuous equation and the momentum equation and many solutions partial differential equation value computational method in the open canal turbulent flow solution, still could widely apply and yield the satisfactory result
但是,非穩態的navier - stokes方程對于明渠水流的瞬時運動還是適用的,以連續方程和動量方程為基礎,建立的各種數學模型和許多求解偏微分方程的數值計算方法在明渠紊流的求解中仍能廣泛應用。Here are three parts in this thesis : building steady state model and transient model for water hydraulic valves. research on the property of flow field inside water hydraulic valves. analysis of the force on water hydraulic valves
論文主要包含三部分的內容:水壓閥穩態模型和瞬態模型的建立;水壓閥內流場過流特性的研究;作用於水壓閥閥芯及閥體上的力特性分析。After simulating the model of water hydraulic valves, the velocity distribution, pressure distribution, energy distribution can be obtained and relations between the valve channel and the energy loss, the negative pressure distribution can be analyzed, which offers the theory foundation for designing water hydraulic valves with the high efficiency, low energy loss and low noise
通過對水壓閥模型的cfd穩態和瞬態解析,可以得到水壓閥內流場的速度分佈、壓力分佈及能量分佈,據此定性分析流道結構(速度、壓力、流動的分離與再附壁,旋渦的產生與消失等)與能量損失、負壓分佈等的關系,從而為設計出高效率、低能耗、低噪聲的水壓閥提供理論依據。Liu, y. f., wang, x. h., zheng, h. n. and wang, s., 1998, unsteady magnetic reconnection in non - periodic multiple current sheets, chinese sci. bull., 43, 242
劉一凡,王小虎,鄭惠南,王水, 1997 ,非周期多層電流片中的非穩態磁場重聯,科學通報, 42 , 2098An operation decision method for multi - stage pumping station system with adjustable - blade propeller pump is presented. it includes optimal water level of individual stage of pumping station and optimal operation method of every pump. the paper describes some mathematical models and decision making technique of multi - stage pumping station
本文針對大型引水工程整個系統在進入穩態運行后,在各站的抽水流量或首級站進口水位發生變化的情況下及時做出運行決策,調整各梯級站間的水位,達到整個系統總能耗最小的目的。With the assumption of insignificant vibration and the results obtained in the sixth chapter, the linear solution for the motion equation of forced vibrating pipe with fixed supports in two ends in steady vibration is derived
首先,在微小橫振動假設前提下,利用第六章的計算結果,用線性化方法推得了兩端固支水下輸液管道在穩態繞流條件下的強迫振動方程的解。Prediction of hydrodynamic pressure. the thesis presents a practical engineering method to predict the hydrodynamic pressure on instantaneous wet ship surface
關於水動壓力預報:本文提出了基於二維擾動流場頻域穩態解的一種預報船體瞬時濕表面壓力分佈的工程實用方法。To solve this problem, the model of steady state water line in rock crack during the rain is built in cha5. the author applies correlative seepage theories on this model to found the calculate method. then the practicality formula of hydrostatic pressure in dangerous rock is supplied
針對危巖靜水壓力計算嚴重偏於保守的情況,靜水作用方面,本文通過建立降雨過程中的巖體裂隙積水穩態滲流模型,運用滲流的相關定理建立穩態水位的計算方法,進而提出靜水壓力的實用計算公式。In this paper, hydromechanical theories, three - dimensional unsteady turbulent finite volume model and pheonics software are adopted to simulate the pressure field and the velocity field of the drainage pipe in allusion to the actuality of the necessary pressurization test before being used. then analyze the computational results and figure out the variational rules of pressure and velocity with different leakage location while close water test or close gas test is applied
本文針對無壓管道交付使用前必須進行嚴密性試驗的現狀,運用流體力學基本理論和三維非穩態紊流的有限體積模型,採用pheonics計算軟體,數值模擬不同管徑下不同漏水點的滲漏情況,模擬閉水和閉氣試驗時管道內部的壓強場和速度場的變化,並分析計算結果,從中找出其變化規律。Numerical models were used to study how the infiltration into a slope varies with the rainfall intensity, rain fall duration, soil properties and how the infiltration influences the stability of a slope. a numerical program is coded to solve the transient seepage field by using the finite element and finite difference methods based on the saturated - unsatured soil seepage theory. a model for considering the variations of soil weight and shear strength is created / constructed and the corresponding program is coded
本文針對受降雨影響顯著的非飽和殘積土土坡,運用飽和?非飽和土壤水分運動的理論和二維非穩態滲流有限元模型,模擬雨水入滲引起的暫態滲流場,將計算所得到的暫態孔隙水壓力分佈用於考慮了基質吸力影響的土坡穩定安全系數的計算當中,建立了考慮非飽和土土坡從雨水入滲到出現滑坡危險全過程的計算模型。These equations were incorporated into a numerical procedure to discretize and solve the boundary value problem for hydraulic head and fluxes within fractured network
編制了離散裂隙網路模型單相穩態滲流程序fracflow 。其次,發展了用離散網路方法確定裂隙巖體等效水力性質的方法。For the advection - dispersion model of one - dimensional reaction solute transport through soils with depth - dependent first - order degradation and depth - dependent linear equilibrium sorption under steady state flow, the numerical model is established by characteristic finite element method
對于穩態水流條件下,同時考慮隨深度變化的一階降解和隨深度變化的線性平衡吸附時,一維反應溶質運移的對流-彌散模型,建立了相應的特徵有限元數值模型。分享友人