wave elevation 中文意思是什麼
wave elevation
解釋
波面任一點高度-
In the study of directional spectrum and reflection coefficient of multidirectional wave, firstly the wave elevation trains overlapped by the incident wave and the reflected wave of multidirectional wave are simulated in the method of a frequency corresponding to a direction. then the composed wave trains are analyzed respectively by the mbdm and the mmlm. during the numerical study, the input factors include the various wave parameters, the different measuring wave system and the various reflect characteristic
在多向不規則波入射波方向譜和反射系數的分析研究中，利用方向頻率對應法模擬了多向不規則波入射波與反射波疊加的波面序列，將此合成波列分別應用mbdm和mmlm進行分析，通過輸入各種波浪參量、不同波浪測量系統和各種反射特性等因子，檢驗了mbdm和mmlm方法的適用條件，對兩種分析方法的性能進行了比較分析。 -
In general, the upward amplitude curve " curvature is larger, and it changes quicker. on the contrary, the downward is smaller and slower ; because the flare force contains the square of the wave elevation velocity, it results in an difference between the flare force frequence and the associated moving frequence ; the flare force decreases the downward amplitude of heaving oscillations ; the speed of ship has an ignorant effect on the peak values of three calculated values, but there is an obvious effect on the oscillating frequence ; the wave amplitude has an effect on the ship motion, and there is an linear relation between the oscillating amplitude and the wave amplitude on the whole. by the way, there are some experiences and lessons according to the progress calculation : before the calculation of the ship motion, we should checkout the balance in a calm water firstly, namely, the whole displace of ship and the longitudinal position of the center of gravity must be consistent with the draft in calm water, or else, the calculation may show the " floating " phenomenon ; the mixed language programming has a lot of virtues, but it exists a fatal limitation - the debug of dll
研究表明：在某些頻率范圍內相關水動力系數基本不隨吃水變化，只有超過某一頻率后水動力系數的值才會出現差異；在橫搖方向，水動力系數並沒有隨著吃水的變化發生規則變化，而是出現了波動現象；近船首剖面的水動力系數計算表明，水動力系數的波動非常大，並遠遠偏離了平均位置的水動力系數值，值的變化速率也不盡相同，總的看來，上振幅曲線曲率較大，變化較快，下振幅曲線曲率較小，變化較慢；外飄力和波面運動的速度的平方項有關，導致其振動頻率和相應運動方向的頻率不同；外飄力使升沉向下運動的幅值減小；船速對三個計算量的峰值影響甚微，但對振動頻率有明顯影響；波幅對船舶運動的影響是明顯的，船舶運動的幅值基本上和波幅成線性關系。 -
In terms of deriving the maximum trapped - wavelength and the critical emitting angle of elevation for electromagnetic wave which can forms duct propagation and introducing the four kinds necessary condition for electromagnetic wave to form duct propagation, under these conditions we now have the radio wave bent back towards the earth
結果與實際觀測到的波導傳播時的回波結構相同，說明，根據不同的大氣層結，利用電磁波的波導傳播的射線追蹤方法可以基本上確定電磁波的傳播軌跡。 -
Based on the calculation of the elevation of wave barrier for breakwater and physical model research, this paper analyzes the choice of elevation of wave harrier and its influence on the mooring conditions for fishing boats in the sea area
摘要通過對防波堤擋浪墻頂高程計算和物模試驗研究，分析擋浪墻頂高程的取值及其對灣內海域漁船泊穩條件的影響。 -
Radar ( radio detection and ranging ) detect the objects in the space and estimate the objects " parameters, such as distance, azimuth, angle of elevation, velocity, by transmitting radio wave. in national economy, it is used in navigation, weather forecast, geological mapping, military affairs and so on
雷達利用發射的無線電波探測空間中的物體並確定其距離、方位角、仰角、速度等各項參數，廣泛應用於導航、氣象預報、地質測繪、軍事等領域。 -
The effect of the change of surface elevation on the wave development and elimination is pointed out for the first time, which provides the necessary theoretical basis for the development of united current - wave - tide model ; hi the discussion of the effects of waves on currents, a variety of wave - induced forces on the geostrophic and viscous condition and their producing mechanism are introduced systematically, their corresponding wave - induced currents are also analyzed qualitatively. moreover, a complete expression of wave - induced reynolds stresses tensor is presented for the first time
在浪對流作用的討論中，系統的闡述了海浪在地轉作用和粘性條件下所產生的各種作用力，詳述了它們的生成機制，並定性的分析了相應的波生流，同時，首次提供了地轉條件下浪致雷諾應力張量的完整表達式，為實現海流模式與海浪模式的并行數值計算提供了一種簡便的途徑。
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