undulatory theory 中文意思是什麼
undulatory theory
解釋
波動學說- undulatory : adj. 波動的；起伏的；波浪形的。 the undulatory theory （of light） 【物理學】（光的）波動說。
- theory : n. 1. 理論，學理，原理。2. 學說，論說 （opp. hypothesis）。3. 推測，揣度。4. 〈口語〉見解，意見。
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The main contents of the paper as follows : chapter 1 : undulatory theory of real estate economy
本文研究的主要內容如下:第一章:房地產經濟波動理論。 -
Since these theoretical analyses are based on inviscid potential flow theory, theoretical calculation and computational simulation may complement each other. the hydrodynamics and undulating propulsion of specimens were studied using three dimensional computational fluid dynamics ( cfd ) modeling. the cfd analysis using kinematic model of undulatory dorsal / median fin draws a series of conclusions, which include that the body drag increases significantly with the lateral body oscillation ; the body drag is minimum while the start point of
計算結果表明游動過程中的形體阻力隨側向周期性擺動而增大;當背鰭前端位於身體側向最寬處時，形體阻力具有局部最小值，結論與實驗觀測結果相吻合;在實驗觀測的典型運動參數下，波動面的運動方程中的非對稱因素的出現使推進力增大約1 . 10倍。 -
Finally, the values of kinematic parameters in typical swimming are estimated for theoretical calculation and computational simulation. based on the kinematic formulation, this paper applies large - amplitude elongated body theory to propulsive performance of undulatory dorsal / median fins and establishes a set of equations for estimation of the propulsive force and the propeller efficiency. the calculations based on experimental data coincide with blake ’ s result in 1980
從波動運動的參數方程出發，本文基於大擺幅伸長體理論對背鰭/背臀鰭波動模式的推進性能進行了分析，推導推進力和推進效率的計算公式，利用實驗觀測典型運動參數對仿生對象的推進力和推進效率進行了理論估算，結果與blake的計算結果相吻合，從而驗證了所建運動學模型的有效性。 -
Based on bionic experiments in gymnarchus niloticus and rhinecantbus aculeatus, this paper presents a parameterized description of undulatory dorsal / median fin propulsion modes. by referring to large - amplitude elongated body theory and computational fluid dynamics simulation, this paper also provides an explanation of the external morphological and kinematic phenomena that are closely related to propulsion characteristics
本文以「尼羅河魔鬼」和「鴛鴦炮彈」為仿生實驗對象，建立背鰭/背臀鰭波動推進模式的參數化描述，對與推進性能密切相關的若干形態學及運動學特徵進行研究。
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