wavy surface 中文意思是什麼
wavy surface
解釋
波形表面-
In this thesis, based on pershing ii surface to surface missile, a new kind of ballistic missile was designed with an additional rocket engine, which can be ignited twice. firstly, aerodynamic computational models of missile body and warhead which reentry with supersonic are built according to the task requirements ; secondly, the propulsion system model of missile is built whose first two stages are solid rocket engines and the third stage is liquid - solid combined rocket engine. the nozzle and the shape of the engine are designed to meet the needs of the populsion project ; thirdly, the trajectory model of the mass point is built and a wavy trajectory is designed & optimized ; finally, the ability of a missile ' s breaking through defence is analyzed
以美國潘興導彈為原型，增加可兩次點火的末級發動機，改裝成具有跳躍能力的地地彈道導彈；首先，根據任務需求，建立了導彈的氣動模型，並建立了彈頭再入時高超聲速氣動模型；其次，建立了導彈推進系統模型，前兩級採用了固體火箭發動機，第三級採用了固?液組合火箭發動機，並在總體方案要求下，對發動機噴管和外形進行了設計；第三部分，建立了導彈質點彈道模型，設計了一條跳躍式彈道，並對跳躍式彈道進行了優化設計；最後，對導彈進行了突防能力分析，從分析的結果可以看出，跳躍式彈道的突防能力比常規的拋物線彈道要強。 -
Firstly, a representative wind and wave model, which could both simulate the main characteristics of wig over sea waves and be suitable for numerical calculation, is presented. the model completely considers the fully nonlinear effect of wave surface on the wavy air flow, separates the disturbance of wave surface from the wing - air wave interaction flow, and overcomes the numerical calculation difficulties due to the large difference of dimensions between wing and water waves
首先針對機翼在風浪中的非定常非線性氣動力問題，提出了一個既能夠反映風浪場主要特徵又適合於數值計算的風浪場模型，該模型完整地考慮了波浪表面對氣流場的全非線性影響，使波面對流場的擾動分離出來，消除了機翼和波浪幾何尺度上的巨大差異帶來的數值計算上的困難。 -
Three models are employed to analyze the aerodynamic characteristics of a wing above sea - wave. those are ( 1 ) curve surface effect ( c. e. ), ( 2 ) wavy air motion effect ( w. e. ) and the coupled effect a. e
研究了曲壁面效應，波動效應以及壁面和波動綜合效應三種影響模式對二維和三維機翼在風浪中飛行時的氣動力性能的影響規律，指出了二維和三維機翼氣動力特性的共性和區別。 -
The results can be summarized into the following aspects : molecular dynamics study of liquid - vapor interface shows that the planar liquid - vapor interface at macroscopic level is in fact a wavy surface fluctuating with time, and the length scale of the fluctuating region of the wavy surface is the thickness of the liquid - vapor interface. with speckle laser visualized experiment, the fluctuation of the interface can be verified qualitatively. moreover, md simulations indicate that in the liquid - vapor equilibrium system, there exists a local non - equilibrium region near the interface
主要研究成果歸納如下：對汽液界面進行了分子動力學研究，揭示出宏觀尺度的平界面在分子尺度上是隨時間起伏漲落的曲分界面，分界面的漲落區域就是汽液界面的厚度，相應的激光散斑實驗也定性地證明了界面漲落區的存在；研究還發現在汽液平衡體系中，界面附近存在局域熱非平衡區域，並指出了其可能的原因及影響。 -
A new viewpoint to the albatross ' s high performance of flight near wave surface is presented in this paper. how the albatross can realize it high performance flight above waves by taking advantage of wavy effect and boundary effect is illustrated in details
研究了信天翁在波浪上飛行時的氣動力和運動，對信天翁在風浪中高效飛行的機理提出了新的見解，詳細論證了信天翁利用波動效應和壁面效應在風浪場中實現低能耗飛行的原因。
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