正渦度中心系 的英文怎麼說
中文拼音 [zhēngguōdùzhōngxīnxì]
正渦度中心系
英文
cloud system of positive vorticity center-
Results show that typhoons had different characters of boundary layer temperature and vorticity fields at different life stages, and the intensity of typhoons was inversely proportional to the distance between warm center and maximum positive vorticity center, that is to say, the smaller the distance, the stronger the typhoon
結果表明：在臺風的不同發展階段，其大氣邊界層相對渦度場和溫度場的結構有著明顯的不同特徵，暖中心與正渦中心的距離與臺風強度為反相關關系，暖中心與正渦中心的距離越小，臺風強度越強。By mesoanalysis of a precipitation that occurred in the middle reaches of the changjiang river, 8th jul. in 2003, the formation and development of the event, its relation with the meso - microscale system are studied, it is emphasized that the low - level jet would cause favorable thermodynamic, moisture and dynamic conditions for the heavy rainfall in the middle reaches of the changjiang river and that the mesoscale vortex formed in the left of the low - level jet would stimulate strong convective clouds and cause the heavy rain
摘要通過對2003年7月8日發生在長江中游的一場大暴雨進行中尺度分析，初步研究了暴雨的形成及發展過程，總結了暴雨的產生與中小尺度系統的關系，著重闡述了低空急流在暴雨形成中的作用，以及在低空急流左側強正渦度中心附近形成中尺度渦旋，激發暴雨雲團等。The principal contributions of this dissertation are : 1. a high fidelity and real - time rotor wake inflow model was built up. based on peters - he finite states wake theory, a new influence coefficient matrix for high speed flight was derived, the modified wake model is better suitable for the flight state with a large wake skew angle
本模型以peters - he有限狀態尾跡理論為基礎，修正了大尾跡傾斜角時的誘導速度影響系數矩陣，並結合了王氏渦流理論，導出了旋翼誘導速度垂向分量和旋轉分量的表達式，可計算平尾、尾槳和垂尾氣動中心處誘導速度各分量。
分享友人