projectile aerodynamic characteristics 中文意思是什麼
projectile aerodynamic characteristics
解釋
彈丸氣動特性- projectile : n. 1. 拋射體。2. 射彈。3. 導彈，飛彈，火箭。adj. 1. 拋射的，發射的；射彈的。2. 可拋射的；推進的。3. 【動物；動物學】（觸角等）能伸出的。
- aerodynamic : adj. 空氣動力學的。 an aerodynamic missile 飛航式導彈，有翼導彈。n. -s 空氣動力學，氣體力學。
- characteristics : 產品性能描述
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The aerodynamic characteristics of a projectile with wrap around fins are studied systematically in this paper, as follows : 1. the lift coefficients 、 drag force coefficients 、 pitch moment coefficients 、 pitch damping moment derivatives and roll damping moment derivatives are obtained from engineering calculation through looking wrap around fins as flat fins of the same projection aera
本文對某卷弧尾翼彈氣動特性進行了系統研究，主要內容與結論為: 1 .將卷弧翼按照相同投影面積的平板翼進行工程估算，得到升力系數、阻力系數、俯仰力矩系數、俯仰阻尼導數、滾轉阻尼導數曲線。 -
The flying stability of the unguided projectile with wrap around fins could be influenced by the self - induced rolling characteristics and the cross coupling effects of the waf badly. it is necessary to study further on this special aerodynamic problems
卷弧翼存在自誘導滾轉特性、較嚴重的交叉耦合效應等特殊氣動問題，對于無控的卷弧尾翼彈而言，這很大程度上影響飛行穩定性。 -
3. the static aerodynamic characteristics of the projectile are computed using the software of cfd, the results of the numerical simulation are agreement with the engineering calculation, this verifies that the results of the static aerodynamic characteristics of waf from engineering calculation are satisfactory
3 .應用cfd軟體對彈靜態氣動特性進行數值計算，數值計算結果與工程估算結果吻合較好，說明卷弧翼的靜態氣動特性可以通過平板翼進行估算。 -
Based on aerodynamic theory and the characteristics of the shockwave around a supersonic projectile, the article constructs a mathematical modeling of a l - shaped vertical target for projectiles shooting with forward direction and any direction, and analyzes the error sources and provides correcting ways to lower the error
摘要本文根據空氣動力學理論和超音速彈丸的激波特性，建立了在使用l型立靶基礎上正向射擊和任意角度射擊時的數學模型，並進行了誤差分析，提出了減小誤差的修正方法。
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