斜壓場 的英文怎麼說
中文拼音 [xiéyāchǎng]
斜壓場
英文
baroclinic field-
If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g
如果通過激光冷卻能使原子速度降至很小甚至為零,光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處,其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小,因此,如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。The method of applying monoclinal water storage structures in determining dynamic water level emphasizes on experimental calculation of the height of artesian water followed by picturing hydrodynamic field in couple with limited available data of groundwater level
採用單斜儲水構造來確定水動力場的特徵,其核心步驟為引用試演算法,確定承壓水形成高度,然後結合研究區僅有的地下水位資料,刻畫水動力場。On base of the data analysis, three - dimensional tide - induced residual currents, the wind - driven and thermohaline currents in the bohai sea are diagnostically computed with an orthogonal curvilinear grid system, by means of a three - dimensional ecomsed model. the winter and summer thermohaline structure and circulation characteristics in bohai sea are analysed, and the circulation variance is discussed preliminarily. the tides and tidal currents in bohai sea are well reproduced
在資料分析的基礎上,應用三維斜壓ecomsed模式對渤海的潮致余流、風生環流和密度環流進行了診斷計算,分析了渤海冬夏季的溫鹽場結構和對應環流的特徵,並對渤海上述幾個不同時期的環流變異進行了初步的分析和探討。On the basis of these results, the relations of total - pressure recovery coefficient or flow coefficient and flight mach number, angle of attack and the second movable wedge angle of the inlet have been founded by hypersurface fitting, then the mathematical model of the inlet is established
根據流場計算結果並利用超曲面擬合方法建立了進氣道總壓恢復系數、流量系數與飛行馬赫數、進氣道攻角及二級可調斜板角度之間的關系,由此得到了二元混壓式超聲速進氣道數學模型。The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題,本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上,建立了三維、可壓縮紊流的物理模型,得到了通用的求解辦法;利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型,計算了冷卻空氣通過這幾種通道時的流動與換熱情況,得到了各種不同情況下計算區域的溫度場、壓力場、速度場;在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響,並整理得到了各種通道形式下,努謝爾數和阻力因子與雷諾數的函數關系;本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果,通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較,表明了這種新型鮚構的優勢,對于葉片內部通道冷卻結構的設計可以起到指導的作用。With the research in the paper succeeded it would be certain that the helical gear pump would replace the spur gear pump now widely existed in the market and also could replace the other type of hydraulic pump in some areas, which surely greatly decrease the cost of manufacture and advance the development of technology. the importance is undisputable
本論文研究的斜齒嚙合式低脈動齒輪泵可代替現廣泛存於市場上的直齒輪泵,並能在很大程度和范圍內替代其它形式液壓泵的作用,這對于促進機械裝備的技術進步、降低機械裝備的製造成本具有十分重要的意義,其應用前景將十分廣闊。Hydraulic fracturing of deviated well and horizontal well under different tectonic stress field
斜井及水平井在不同構造應力場水力壓裂起裂研究With the research of the evolvement features of barotropic and baroclinic atmosphere flow fields, the mechanism has been studied of the formation, development and die out of the heavy rainfall which occurred in wu - han during the period of 21 - 22, july 1998. the results are shown as follows : the evolvement of the rainstorm has a close relation to the barotropic component of the real atmospheric flow filed. and the barotropic component is, to a certain degree, also responsible for the coupling characteristics of high - and low - level jets
本文從研究大氣正、斜壓流場的演變特徵入手研究了1998年7月武漢的一次強暴雨發生、發展、消亡全過程的機理,研究結果表明: ( 1 )未經過尺度分離的實際大氣流場正壓分量的演變與此次暴雨的醞踉、發展和消亡相對應,並且正壓分量在一定程度上反映高、低空急流耦合特徵。Based on several actual cases, the temperature control measures for roller compacted concrete ( rcc ) gravity dam and arch dam such as structural jointing for construction ; lowering of concrete placing temperature ; water pipe cooling ; surface insulation ; inclined - layer placing etc., the measures to improve the material properties i. e. the application of micro - expanding concrete ; enhancement of material crack - resistance property and the requirement for the simulative analysis on both the temperature field and stress field as well as some problems concerned are summarized herein on the basis of the analysis on the material properties ; construction characteristics and the changing characteristics of the thermal stress of roller compacted concrete
摘要從碾壓混凝土的材料特性、施工特點、溫度場溫度應力的變化特點入手,結合幾個工程總結了碾壓混凝土重力壩、拱壩的分縫方式,降低澆築溫度、水管冷卻、表面保溫、施斜層碾壓等溫控措施,採用微膨脹混凝土、提高材料抗裂性能等改善材料性能措施及碾壓混凝土溫度場、應力場模擬分析的要求和應注意的問題。Abstract : taking the 1 500 auxiliary concrete structures roadway which has just a few multiple diploid strata as a research object, by terms of utilizing the 3d fem model, integrating the observation result and resemble simulacrum ending, comprehensive research on the inside of stress distortion and its mechanism are developed, an extraordinary fairly visual result is gained which has an important support in practical supporting design, reinforcement, enhancing the strata cohesion and intensity
文摘:以窯街三礦1500混凝土結構副大巷多層急傾斜煤巖層中復雜結構為研究對象,應用三維有限元模型,結合現場礦壓觀測結果和相似材料模擬試驗結果,對該巷道內部應力破壞敏感部位的內力和變形機理進行了系統的研究,得到了非常直觀的可視化計算結果,這對現場支護設計、維護加固和提高巖層的「凝聚力」具有重要的意義One is the change of the basic - state parameters ( e. g., the zonal wind field ) ; the other is existence, in the real atmosphere, of instabilities not described in our model, like for instance, baroclinic instability
一個是基態參數(例如緯向風場)的變化;另一個在實際大氣存在的不穩定(此模式未予涉及) ,例如斜壓不穩定。A 3d baroclinc ocean model is used to model the ocean current around the kuroshio area on the condition of successively anomalous east asia winter monsoon, some significant results are obtained, and the influence of strong ( weak ) winter monsoon on sea surface height ( ssh ), sea surface temperature ( sst ) and sea current around the kuroshio area is analyzed preliminarily
摘要運用一個三維斜壓海洋模式對冬季風風場持續異常時期的黑潮區海洋進行了模擬,初步分析了冬季風風場持續異常對黑潮區海面高度、海流和海溫的影響。The baroclinic component of the real atmospheric flow fields played a dominant role during the torrential rain. with the development of the rainstorm, the barotropic component of the real atmospheric flow fields decreased, along with the baroclinic component increasing
暴雨前後,實際大氣流場的斜壓性一直佔主導地位,並且隨著暴雨的發展,實際大氣流場的正壓性減弱而斜壓性進一步增強。With the development of the storm, the barotropic component of the mesoscale flow field was decreasing and the baroclinic component was reinforced. on the contrary, the barotropic component of the subsynoptic scale flow fields was reinforced and the baroclinic component was decreasing. the baroclinic kinetic energy played a key role in the process of the rainstorm.
暴雨前後,次天氣尺度與中尺度流場的斜壓性都是佔主導地位,隨著暴雨的發展,中尺度流場的正壓性減弱而斜壓性進一步增強,而次天氣尺度流場的正壓性增強而斜壓性減弱。Moreover, the measured ultimate shear from the tests were compared with that predicted from china design code of reinforced concrete structures, gb50010 2002, and that from the response2000, which is based on modified compression field theory by michael collins, both were undertaken before the experiments
文中還將試驗實測承載力與我國現行混凝土結構設計規范抗剪設計公式的預測值和基於修正斜壓場理論的抗剪分析程序response2000的分析結果進行了對比。( 2 ) based on deterioration model of owerage bond stress of beam reinforcement accounting for effect of axial compression ration and number of displacement loops, and stress - strain relationship of the concrete in the joint core accounting for effects of both softening and confinement, the modified compression field theory was employed to simulate behavior of the joint core under loading reversals. analysis by means of the program jap on the tested specimens in this paper and those obtained from other researchers produced consistent results
根據本文建立的考慮軸壓比和位移循環次數影響的梁筋平均粘結應力退化模型和考慮軟化效應、約束效應的核心區混凝土應力應變關系,通過在試驗中得出的節點核心區混凝土、箍筋、節點正面、背面柱筋在反復荷載下的受力特點,利用斜壓場理論模擬節點核心區在反復受力過程中的受力狀態。In contrast, the baroclinic component over low levels was stronger to south of wuhan and the barotropic component was strong to north of wuhan
暴雨期間實際大氣流場高層的斜壓分量很強;低層武漢以南斜壓分量較強,而武漢以北的正壓分量強。First using analytical method, we obtained the nonlinear baroclinic subcritical instability criterion and symmetric subcritical instability criterion. second using numerical experiments, we analyzed the influenced fact on the baroclinic subcritical instability, and we also analyzed what the nonlinear subcritical symmetric instability effects on a rainstorm, and advanced a new mechanism produced the rainstorm
本文利用解析方法導得了大氣中非線性斜壓亞臨界穩定性判據和對稱亞臨界穩定性判據;並分別用數值試驗方法分析了斜壓亞臨界不穩定的影響因素以及亞臨界對稱不穩定在一場暴雨過程中所起的作用,提出了產生暴雨的新的物理機制。As the strong normal share of the wind, turbulent fluctuation is strengthened and the sands are raised up from the surface ground the wind speed in the atmosphere of the low level has a horizontal share and this pushes the sands in the atmosphere aggregate, so the visibility descend
近地面風速的垂直切變和地面熱通量的加大,都可使使邊界層湍流加強揚起地面沙塵。地面鋒區附近風場的強水平切變,鋒面垂直環流及鋒后斜壓轉換的作用,將地面捲起的沙塵帶到高空,爆發強沙塵暴。During the rainstorm, the subsynoptic scale flow fields and baroclinic component of the mesoscale high - level flow fields were extremely strong, as well as the barotropic component was obviously strong over low levels
暴雨期間次天氣尺度流場與中尺度流場的高層的斜壓分量很強,而低層的正壓分量很強。分享友人