applied aerodynamics 中文意思是什麼
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Modern control theory is applied to design the aerodynamics subsystem and the direct force subsystem
採用現代控制理論來設計氣動力和姿控直接力子系統。 -
However, the simulated annealing algorithm will expand too much time to estimate the values of objective function when applied to aerodynamics optimizations. the way to remedy this problem in this dissertation is by improving the efficiency of optimizer and the cfd - solver. our cfd - solver is base on the modification to the proper orthogonal decomposition ( pod ) method that can produce a finite series of basis functions or modes through the solution of snapshots
但對于氣動外形優化設計問題來說，由於評估需要解決的問題的目標函數值需要多次調用流場解算器，會導致用模擬退火演算法進行優化設計的計算工作量過大，因此需要我們對流場解算器和優化方法兩個方面進行研究以尋找此問題的解決辦法。 -
The paper introduces the basic principle of the inducement type ventilation in the province of aerodynamics : disturbed characteristic of high - speed cascade can effectively leads quiescent air around it and drive air flow, compares and analyzes the traditional ventilation type and inducement ventilation type applied in underground garage in the facets of airflow organization, practicability and economy, coming to the conclusion that the inducement type ventilation is applied to the underground garage in the facets of economy, practicality and high efficiency
摘要介紹了誘導式通風利用空氣動力學中高速噴流的擾動特性，能夠有效地誘導周圍靜止的空氣，帶動空氣流通的基本工作原理，就傳統通風方式和誘導通風方式，在地下車庫應用中的氣流組織、實用性、經濟性等幾個方面做了比較，分析認為，誘導式通風因其經濟、適用、高效的特性適合在地下車庫應用。 -
Meanwhile, numerical computation of aerodynamics is widely applied with the progress of computer, large quantities of relative paper has been presented. but at present, the relative literature about turbulence characteristics of plural vehicles running in row and passing maneuvers is very limited. pointing to the above difficulty, in this paper, numerical computation of turbulent - velocity field is studied while a sedan exceeding a tractor - trailer truck
本論文在對某國產轎車單車外流場的模擬地面邊界層、車輪轉動和側向風載荷研究基礎上，以及兩輛轎車並列行駛、同向超車的穩態研究的基礎上，選取了兩種笛卡爾網格方案和四面體混合網格方案，開展某國產轎車超過某大型運輸車的數值模擬研究。 -
For automobile aerodynamics there are many researching works that have to be completed in future, if cfd could be successfully and widely applied in auto manufacture as in the air flight and space flight
在數值計算上收斂性和精度也有待改進。數值計算不能完全替代試驗，試驗對于校正cfd方法和檢驗cfd結果是非常必要的。 -
For numerical analysis the flow field around the tested automobile is numerical calculated. in the last decades, along with the very quick advance of computers and numerical techniques computational fluid dynamics ( cfd ) has come out as a modern alternative for reducing wind tunnel tests. recently cfd is applied to various stages of automobile aerodynamics
近年來，伴隨著計算機的發展及計算技術的進步，數值研究取得了迅猛的發展，這種數值研究屬于計算流體力學cfd （ computationalfluiddynamics ）的范疇，它利用計算數學的演算法將流場的控制方程離散到一系列網格節點上求其離散的數值解。
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