vorticity 中文意思是什麼
vorticity
解釋
環量-
Optics aberrations aroused by moving vorticity pulse
運動渦旋脈沖引起的光學畸變 -
One of factors which activize the explosive development of cyclone exists strong convective instability in lower layers from the analysis of the barotropic potential vorticity
由正壓位渦分析得出，氣旋爆發性發展的啟動因子之一為低層存在強對流性不穩定。 -
In a word, convective instability strong baxoclinicity barotropic advection of potential vorticity and latent heat release are factors which activize this explosive development of cyclone
總之，對流不穩定、強斜壓性和正壓位渦平流、潛熱釋放是本次氣旋發展的啟動因子。 -
The local nonlinear advection increases evidently the inward - propagation of vorticity, and therefore strengthens the typhoon obviously
局域非線性平流使內傳的渦量明顯增多，臺風明顯加強。 -
The results show that vorticity advection, thermal advection and latent heat release made great contribution to the development of the depression
中低層的溫度平流、降水凝結釋放潛熱維持上升運動，是低壓進一步發展的有利條件。 -
2. dynamic meteorology : equations of motion ; geostrophic, ageostrophic and gradient winds ; thickness and thermal wind ; continuity equation ; stream function ; vorticity equation ; divergence equation ; omega equation ; rossby wave ; ekman layer ; numerical weather prediction
2 .動力氣象學：運動方程地轉風非地轉風及梯度風厚度及熱成風連續方程流函數渦度方程輻散方程奧米茄方程羅斯貝波埃克曼層數值天氣預報。 -
Analyzing the physics structure of vorticity, divergence, vertical velocity, frontogenesis " function, apparent heat source and apparent moist sink etc. indicated the physics fields are favorable for the occurance of the heavy rain over changjiang - huaihe river basin where the physics values are well according to the heavy rainstorm positions ; the low level jet is closely subject to the moisture and the coupled system of the low and the upper level jetstreams induced the strongly " ascending motion ; the intensity of the frontogenesis varies with the development of the rainfall system and reacts the rainfall intensity
主要分析了這次過程中的多種物理量，包括渦度、散度、垂直速度、鋒生函數、視熱源、視水汽匯等，對這一暴雨過程有了比較系統的認識。結果表明：在江淮流域存在著有利於發生暴雨的物理量場配置，渦度、散度、垂直速度等物理量，與暴雨的落區都很吻合的；低空急流的產生不僅有利於水汽的輸送，而且高低空急流的耦合造成了有利於強上升運動的配置；鋒生強度隨著降水系統的發展變化，並影響降水強度。 -
Inertial instability barotropic advection of potential vorticity the subsidence of the large value of potential vorticity above cyclone and geostrophic adjustment process is dynamical factors which make the cyclone developed violently
慣性不穩定，正壓位渦平流以及正壓位渦大值下沉至氣旋上空和地轉適應過程是氣旋強烈發展的動力因子。 -
Firstly, this paper designs a polar coordinate barotropic vorticity equation semi - spectral model and a quasi - geostrophic grid model in order to research the propagation of vortex rossby waves and tropical cyclone intensity change entirely
本文首先設計了一個極坐標系正壓渦度方程的半譜模式、一個準地轉格點模式對渦旋rossby波傳播和熱帶氣旋強度變化進行了較為系統的研究。 -
The result indicates that, in the course of the rainstorm in huoshan, there are obvious low - level jet of great intensity, infection of mesoscale shear line, enhancement of plus vorticity which increases intensity of convergence, improves ascending velocity and brings on precipitation, and quick enhancement of helicity which provides the basis to forecast, in addition, convergence of moisture flux and analyzed potential vorticity which reflects baroclinic convective instability sufficiently indicate the characteristics of the rainstorm
結果表明：此次霍山暴雨發生前後，存在明顯的大強度低空急流，並受到中尺度切變線的影響，而且正渦度的加強引起了輻合加劇，提高了上升速度從而引起降水，同時暴雨發生前螺旋度的迅速增強，也為預報提供了根據，另外水汽通量的輻合以及分析位渦反映出的斜壓對流不穩定都充分體現了這次降水的特點。 -
A linearized differential quadrature method for navier - stokes equations in the stream - function and vorticity form
方程的線性化微分求積法 -
Slantwise vorticity development and meso - scale low vortex
中尺度低渦 -
It was pointed out that the horizontal distribution of the moist available energy is helpful for heavy rainfall, and one of the enhanced mechanism of mesoscale low vertox is slantwise vorticity development
同時指出，濕有效能量的水平分佈對于暴雨預報具有一定的指示意義，傾斜渦度發展是中尺度低渦加強的機制之一。 -
The accumulation and transportation of moist available potential energy and the release of the condensation heat offer the material condition for this heavy rainfall. under the condition of the air ' s movement through the stiff moist isentropic surfaces, the development of vertical vorticity of mesoscale low vortex system is accelerated due to the slantwise vorticity development, and to form stronger convective system, so as to result in heavy storm rainfall
濕有效能量的積聚和輸送為強降水的發生、發展提供了充分的物質條件；由於沿陡立等熵面的空氣上滑運動，因傾斜渦度發展造成了中尺度低渦系統垂直渦度迅速增加，促進了低渦的快速加強，形成強對流系統，導致強暴雨過程的發生。 -
The anomalous non - uniform heating induces anomalous cyclonic vorticity in south china, areas to the south of the yangtse and its mid - lower valleys, but anomalous anticyclonic vorticity in the indo - china peninsula and south china sea areas lead to the more southward position of wpsh than the mean
這種異常的非均勻加熱狀況導致我國華南、江南、長江中下游地區呈現異常氣旋性渦度製造，而中南半島大部和南海地區為異常反氣旋性渦度製造，使得1998年6月副高位置異常偏南。 -
The variation of the negative / positive value of the baroclinc potential vorticity under 850hpa has a very good corres pondence with the development of the cyclone
850hpa以下的斜壓位渦的正負值的變化與氣旋的發展有很好的對應關系。 -
Based on the regression model which was built on vorticity field eof expansion with stepwise discriminatory analysis, track forecast tests for bilis and kai - tak affecting china in 2000 were carried and good results are obtained
用此模型，對2000年影響我國的兩個臺風bilis和kai - tak進行路徑預報試驗，得到了良好的結果。 -
Finally, the mechanisms behind the instability of fibre suspensions are presented from a point of view of vorticity. effects of fibres are investigated through equations of vorticity transport and enstrophy balance
從渦量的角度分析纖維改變懸浮流動穩定性的機理，利用渦量輸運方程與渦能平衡方程分析纖維的作用。 -
The in of nonlinear advection into the model weakens the intensity of both inward and outward propagation of vorticity, but makes the inward propagation up to a posi
非線性平流的引進，使渦量向內區傳輸以及向外傳輸的強度均減弱：但內傳的渦量更加接近於臺風中心。 -
Strongly strengthening of the low level jet and releasing of the latent heat of condensation have effect on the occurrance of the disturbance of the moist potential vorticity in low lever, which is important conditions to the genesis and development of mesoscale vortex
低空急流的加強以及凝結潛熱的釋放均可以影響到低層濕位渦擾動的產生，從而有利於中尺度低渦的生成和發展。減弱低空急流的對比實驗證明了低空急流在對流層中低層中尺度低渦的生成和發展過程中起著關鍵性作用。
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