非穩流 的英文怎麼說
中文拼音 [fēiwěnliú]
非穩流
英文
nonsteady flow-
It describes unsteady flow toward a discharging well in an extensive aquifer.
它描述位於廣闊含水層中的抽水井的非穩定流。When is a flow compressible [ for both steady and unsteady flow ]
什麼時候流動是可壓縮的[對穩態和非穩態流而言] ？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。In order to realize the on - line prediction the baking temperature of ladle lining, and to study its temperature uniformity, a 3 - d transient mathematical model with multi - inlet and multi - outlet of ladle heating facility facilities was built
摘要為了對鋼包的烘烤溫度進行在線預測，筆者耦合了流體流動、燃燒和換熱過程，建立了多入口、多出口的三維非穩態鋼包烘烤數學模型。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。According to differences of construction process, boundary condition, temperature and stress of two schemes extending 3m deep short seam on upstream face in the middle of rcc overflow section and no short seam are calculated, what " s more, in this paper the equivalent line drawing of stable temperature field and unstable temperature field during construction and operation period and the duration curve drawing of typical points " s temperature and stress are plotted, and the results of peak and minimum on temperature in every month and maximum on tensile stress are attained
根據施工過程和邊界條件，對溢流壩段中間上游面增設3m深短縫和不設短縫兩個方案進行了溫度和應力計算，並繪制出穩定溫度場等值線圖及施工期、運行期非穩定溫度場等值線圖，典型點溫度和應力歷時曲線圖，逐月最高、最低溫度和最大拉應力及相應位置等成果。Compared with the reality, it shows that this model and its parameters are defined reasonablly. to analyse the arrangement of drainage system with different spacings and depths, with unsteady flow formula and benefit index, this paper gives a two - dimensional non - linear programing model for arrangement of drainage system in the barley field, which can be solved by the method of projected gradient. by this model, we make out the optimum solution of spacings and depth of pvc pipe in littoral area of changjiang river that is s = 21. 5 8m, h = l. lm
論文通過對不同埋深、間距的塑料暗管排水布局的分析，結合非穩定流公式和效益指標，提出了麥田排水暗管布局的二維非線性規劃模型，並利用梯度投影法求解，得出長江下游濱海地區塑料排水暗管埋設的最優方案為埋深h = 1 . 1m ，間距s = 21 . 58m 。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。It is shows that the mode of the finite element method with the bishop method is better than general modes
結果說明，有限元法與條分法相結合能充分考慮非穩定滲流期滲流力對土壩穩定的影響，比常規方法更符合實際情況。Influence of unsteady seepage on the stability of cement - soil retaining wall
非穩定滲流對水泥土擋土墻穩定性的影響Oseen unsteady flow
奧新非穩定流Discontinuous deformation analysis of rock slope stability under unstable seepage flow
非穩定滲流作用的巖體邊坡穩定非連續變形分析Unsteady seepage analysis of tailings dams considering coupling of stress and seepage fields
考慮應力場與滲流場耦合的尾礦壩非穩定滲流分析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。Then the isoparametric finite - difference three - dimensional transient groundwater numerical model is presented. visual modflow, the most popular standard visualization software package approved by the hydraulic scientists and technicians on simulating the groundwater flow is used to simulate and calibrate the groundwater level and quantity of the research area. at last, the changes of the hydraulic head and the produced quantity in the future were predicted according to the tested parameter and the modified model
在水文地質概念模型的基礎上，進一步建立了研究區完整的三維有限差分非穩定流數學模型，利用目前國際上最盛行，且被各國同行一致認可的三維地下水流模擬軟體? ? visualmodflow對該區地下水的水位和水量進行模擬求解，最後，利用識別的參數和驗證后的模型預測了今後的水位變化趨勢和可開采量。In order to optimize control and management groundwater resource, the paper ascertains hydrologic and geological parameter on the basis of single - and multi - well unbalance flow pumping experiment, establishes the model of groundwater management system using the theory of volume balance
本文在單、群井非穩定流抽水試驗的基礎上，確定水文地質參數，利用水平衡原理建立地下水系統管理模型，進行優化管理和調度。A transient, three - dimensional, non - isothermal and two - phase mathematical model based on computation fluid dynamics was developed to describe the dynamic process of pemfc
摘要為描述質子交換膜燃料電池的動態過程，發展了一個基於計算流體動力學的非穩態、非等溫的三維兩相流數學模型。Abstract : by using the 3 - d unsteady state heat transfer equation, the heat convection and radiation between the checker and the gas which flows through the checker holes, and the heat conduction among the checker in the chamber of the hot blast stove were studied. the time dependable gas temperature and the temperature distributions within the checker were obtained
文摘:應用三維非穩態熱量傳輸方程，對高爐熱風爐在燃燒過程中蓄熱室內格子磚與氣體之間的對流和輻射傳熱，以及格子磚內部的導熱過程進行了耦合求解.得到了在燃燒期內格子磚及燃燒過程中燃燒廢氣的溫度分佈情況及其隨時間的變化規律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 ， 2098According to the physical model, a mathematical model and computational method were proposed. an axially symmetric transient thermal conduction equation was put forward, which included material pyrolysis, pyrolysis gas flow and chemical reaction in charred layer. chemical reaction was controlled by chemical dynamics, and the reaction rate was computed using arrhenious equation
針對物理模型提出了相應的數學模型和數值計算方法，在材料內部建立了二維軸對稱的非穩態導熱控制方程，其中加入了材料熱解、熱解氣體流動以及炭化層內的化學反應等因素的影響，化學反應由化學動力學控制，通過arrhenius公式確定其反應速率。分享友人