水流力 的英文怎麼說
中文拼音 [shuǐliúlì]
水流力
英文
current force- 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...
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 水流 : 1. (江河) rivers; streams; waters2. (流動的水) current; water flow; fluent; flow; [水文] stream current
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On the basis of many related data from abroad, this thesis is an attempt to simulate the hydrodynamic characters of abyssal gravity cages under the action of currents and waves
本論文正是從這一點出發,根據國外有關抗風浪網箱資料,在試驗室中模擬深水重力式潛網在水流、波浪作用下的受力特性。Secondly, the total resistance is studied directly. the relationship between total stream power and effective stream power is proposed by analogizing the method of engelund
二是直接研究河床總阻力,類比engelund的方法,建立了總水流功率與沙粒水流功率的關系。The lower expression of grbeta in glaucomatous tm cells may contribute to the altered phagocytic function of tm cells, and may lead to the increased aqueous humor outflow resistance mediated by glucocorticoids
激素性青光眼患者的小梁網細胞低表達gr可能引起小梁網細胞吞噬功能發生改變,從而產生激素介導的房水流出阻力增加。The article is based on nation nature science foundation of china, " biogeochemical cycling of pollutants in complex environments of tidal flats in the yangtze estuary " ( no. 40131020 ). the author chose open tidal flat of dong tang chongming yangtze estuary as research object and set up typical section plane so that under the good condition, the author measured hydrology element, total nitrogen and total phosphor index
本文依託國家自然科學基金重點項目「長江口濱岸潮灘復雜環境條件下物質循環研究」 (批準號: 40131020 ) ,選擇了長江口崇明東灘敞開型潮灘為研究對象,設置典型斷面,在平靜天氣條件下,實測了水文、地球化學要素,獲得了水位、流向、流速、 tn及tp等指標6000多個實測數據,著重對長江口潮灘水動力過程、 tn和tp的動力輸移過程進行研究。Do processing of preliminary emergency treatment to want to notice : eye ministry is bumped by stupid thing, local generation strut reachs ache, without the cut that the skin opens, can use cold towel cold compress, reach with subsidence of a swelling reduce ache ; if eye ministry is traumatic, bleed, the gauze of usable cleanness wraps up ; if the eyewinker flies inside pleasant to see, must not rub rubs an eye, should close double key point gently or blink a bit, let express light foreign body to be poured out of along with tear ; if the eyewinker has entered eyeball deep, eyeball already break - through, cannot oppress absolutely right now eyeball, lest emergence is organized inside the eye ; if forehead and eyebrow bend ministry are contused to want to note the eyesight case of seasonable self - check eye, preliminary judgement has injure secondhand without optic nerve
做初步急救處理要注重:眼部被鈍物撞擊,局部產生腫脹及疼痛,無皮膚開放的傷口,可用冷毛巾冷敷,以消腫及減輕疼痛;若眼部外傷引起眼瞼裂傷或出血,可用清潔的紗布包紮;若有異物飛入眼內,千萬不要搓揉眼睛,要輕閉雙眼或稍眨眼,讓表淺的異物隨淚水流出;假如異物已經進入眼球深部,眼球已經穿通,此時絕不可壓迫眼球,以免眼內組織脫出;若額頭和眉弓部被撞傷要注重及時自我檢查眼睛的視力情況,初步判定有無視神經間接損傷。The water current flows over the top of the dentoid baffle to the hydraulic jump as additional momentum. while it is cooperated with a stilling basin, the flowing condition emerged in the basin may be improved greatly and the length and downstream water depth required by the basin can be decreased to a great extent. such an appliance may be also used to solve the problems of insufficiently dissipating water flow energy and aerating flow, which are often faced with those hydraulic engineering constraction as acted by high waterhead, great specific discharge and low froude number
本文通過齒墩頂部的擴散水舌所形成的附加射流,從上部射入水躍,即可改善消力池內的水流流態,又可降低第二共軛水深,減小水躍長度,增進水躍消能效果,同時還能解決大單寬、低佛勞德數條件下摻氣和消能不足的問題,試驗證實它是一種安全、經濟的消能工。Meanwhile distributive laws of seepage force caused by every grade of water decreasing are still educed
同時也得出了每級降水引起的滲流力分佈規律。( 3 ) the blockage of filtering bed and the thickening of the argitan can cause the change of hydrodynamic properties in the filtering bed, which leads to the decrease of water quantity
( 3 )濾床堵塞和泥膜增厚可能產生濾床中水動力特徵的改變,會產生非飽和流導致出水量的衰減。Through the special studies on impacts to atomizing and humidifying effect from such factors as the firing pin type, centrifugal structure, higher spraying pressure, less aperture, initial water temperature and original state of the air, some conclusions are obtained, such as : the centrifugal nozzle with firing pin type, high pressure and little aperture has bigger air eddy and atomizing angle. the spaying liquid has high velocity. the droplet is small, and the heat and mass transfer velocity is high
通過對撞針型結構、離心式結構、較高的噴水壓力、較小的噴嘴孔徑、噴水初溫及待加濕空氣初狀態對霧化加濕效果的作用原理的重點分析,得到:撞針型高壓小孔徑離心式噴嘴具有較大的空氣渦與霧化角,噴出的液體流速高、液滴小、水與空氣傳熱傳質速率高,撞針型結構提高了霧化加濕效率,高壓小孔徑的特點為霧化加濕提供了較大的能量,而噴水初溫的升高會減小水的粘性力和表面張力,從而優化加濕效果。The results of soil trough experiment indicated that, the flow velocity and froude number would add when the rainfall splash intensity rose ; the flow depth and resistance coefficient would decrease when the rainfall splash intensity increased
土槽試驗結果表明:土壤坡面薄層水流流速和弗汝德數隨雨滴打擊強度的增加而增加,水深、阻力系數隨雨滴打擊強度的增加而降低。The research of fluvial incision in the future will explore more scientific problems concerning both fluvial dynamics and geodynamics
未來流水下切研究要在流水動力學和地球動力學兩方面探索更多的科學問題。Gilbert speculates that the reason for this increase of transport rate is the reduction of friction losses by the presence of fine suspended material in the flow.
吉爾勃特認為輸沙率增加的理由,是水流中存在的細懸移泥沙將減少阻力損失。Development process and tendency of the hydrodynamics of groundwater
地下水滲流力學的發展進程與動向In the first part, the steady nonlinear vortex lattice method is adopted to calculate the hydrodynamic characteristics of open water ichthyoid rudder, and the induced velocity of ichthyoid rudder is calculated using panel method
本文理論計算部分,採用定常非線性渦格法計算魚形舵的水動力性能,用面元方法計算舵流場的誘導速度。Compared to an ordinary rudder, the value of lift coefficient of ichthyoid rudder is about 30 % higher and the maximum rudder angle of it nearly reaches 45 degrees. ichthyoid rudder is a design under such a conception as to effectively utilize the propellers slipstream for rudder action, and featured by having a fish - shaped one - piece construction that is to say - no part of ichthyoid rudder can move in the water
其研究的魚形舵是一個沒有在水下移動的魚尾形剖面單片結構,增加了全舵的剖面拱度,使螺旋槳尾流的折射水量增強,進而增大了水動力的作用,使之比普通流線形舵的升力提高30左右。For the kobold horizontal - axis rotor, the hydrodynamic performance is explored and studied gradually. at first, a basic resistance - type method is presented
對于橫軸蹼板式水輪機,本文從流體力學的基本原理出發,對蹼板式水輪機的水動力性能及其計算方法進行了循序漸進的探索和研究。In recent years, plentiful and substantial fruits achieved by the lb method in simulations of hydraulics, multiphase flows, flows in porous media and heat transfer as well as magnetohydrodynamics, have revealed a broad perspective of application of this method, it will become a powerful competitor to the conventional approaches. in order to absorb the recent achievement in theory and application of the lb method, explore new ways in hydraulic computation to promote the development of practice, some work is car ried out in this thesis, as following : advances in the theory research and application, deductive process of the d2q9 model and some other commonly used models of the lb method are summarized. based on the hydrodynamic and general boundary conditions, a new joint boundary condition is presented, it integrates advantage of the two conditions above and obtains very good results in dealing with all kinds of boundaries of flow fields
為了消化和吸收近年來lb方法在理論和應用方面的新成果,探索在水力計算方面的新途徑以促進lb方法實用化的發展,本文進行了下列研究工作:綜述了lb方法在理論研究和實際應用方面的新進展,以及d2q9模型的推導過程和其他一些常用的模型;在水動力邊界條件和通用邊界條件的基礎上提出了一種新的聯合邊界條件方法,它綜合了上述兩種邊界條件的優點,在流場的各種邊界處理中取得了非常好的效果,經過模塊化的處理以後這種邊界條件具有更好的實用性;針對均勻網格的lb方法計算效率較低的不足,提出了雙重網格的latticeboltzmann方法,通過二維poiseulle流動、后臺階流動和渠道方槽流動三個算例的模擬,證明這種方法能夠明顯地提高流場模擬的計算效率;此外,根據復雜區域流場的特徵提出了latticeboltzmann方法的分塊-耦合演算法,利用lb方法的計算特性實現塊與塊之間的數據交換,充分利用計算資源提高計算效率,通過對「 t 」型、 「十」型和「 x 」型分岔管道流場的模擬,展示了這種演算法的特徵和優點,以及它所具有的應用前景。The hyperbolic conservation laws with relaxation appear in many physical systems such as nonequilibrium gas dynamics, flood flow with friction, magnetohydrodynamics, etc. firstly, the thesis proves that there exists a unique global smooth solution for the cauthy problem to the hyperbolic conservation laws system with relaxation ; secondly, in the large time station, the thesis proves that the global smooth solutions of the hyperbolic conservation laws system with relaxation converge to rarefaction waves solution at a determined l ( p > 2 ) decay rate
帶鬆弛項的雙曲型守恆律組出現在諸多的物理系統中。例如,非平衡態的氣體動力學、帶摩擦的水流、磁動力學等。本文首先證明,帶鬆弛項的雙曲型守恆律組的柯西問題的整體光滑解的存在唯一性;其二,證明了帶鬆弛項的雙曲型守恆律組的解與相應的平衡態守恆律的稀疏波解在大時間狀態下的l ~ p衰減率。In the paper, river and the downstream area of dike are regarded as a whole system, and hydraulic model of coupling 1 - d river and gradual dike - break is established, therein the preissmann implicit difference scheme is applied to main river, and the fvm ( finite volume method ) is applied to the breach and polder
本文將河道與堤壩下游區域視為一個整體,對于單一河道採用preissmann四點隱式差分格式計算,對于潰口及圩區採用有限體積法,建立了一維河道與堤壩漸潰耦聯的水力模型,也是一維、二維耦合的水流模型。The effect of reynolds number on rudder hydrodynamic performance is also analyzed. up to the stall angle the computed lift and drag agree well with measurements and other author ' s calculations, whereas stall angle, lift and drag beyond the stall angle are slightly under - predicted. the solver is used to investigate laminar and turbulent separated flows around a 6 : 1 prolate spheroid at high incidence angles and their effects on hydrodynamic forces
應用所開發的求解器,以naca0015翼型舵為算例計算了船舵在不同雷諾武漢理三;大學博士學位論文數下大舵角范圍內的三維粘性流場及水動力,成功地預報了舵的失速角和最大升力,並初步探討了雷諾數對舵水動力的影響;計算結果與現有試驗和計算數據比較,吻合程度相當好,初步檢驗和驗證了該求解器精確模擬粘性流動和計算水動力的能力。分享友人