unsteady wave 中文意思是什麼

unsteady wave 解釋
不定常波
  • unsteady : adj. 1. 不穩固的。2. 不堅定的；動搖的；易變的，反復無常的，不可靠的。3. 行為古怪的；品行不好的。vt. 使不穩定，使動蕩。adv. -ily ,-iness n.
  • wave : n 〈美海軍〉女志願軍人〈見 WAVES 條〉。n 1 波浪；碎浪； 〈the wave（s）〉 〈詩〉海。2 波動；波狀...
  1. It is necessary to study the unsteady nonlinear aerodynamic characteristics of a wig flying in air with disturbed waves for the design of high - performance wig vehicle, especially for the subject that how to improve the safety, maneuver ability near sea wave, and economics of the wig flying over sea waves

    研究地效翼在風浪擾動氣流場中掠海飛行的非定常氣動力問題，對于高性能地效翼船的設計，特別是對于提高地效翼船在風浪中飛行的安全性，操縱性以及經濟性都是十分重要的。
  2. Based on the characteristics of the daily regulation wave of hydropower stations, the water surface lines in the rising and falling stages are calculated by using an one - dimensional steady flow model and an unsteady flow sediment model

    摘要根據水電站日調節波的特性，運用一維恆定流和非恆定流泥沙數學模型，分別計算了河道漲落水過程的水面線。
  3. To study the acoustic unsteady combustion of srm, built the acoustic model of chamber. deduced the little amplitude sound wave 3d equation, used the finite volume discrete method to simulate. got the vibration model of three kinds of chamber

    為研究固體火箭發動機聲不穩定燃燒特性，建立了燃燒室內聲學特性分析的物理數學模型，推導了小振幅聲波三維波動方程，採用有限體積離散方法進行模擬，得到圓柱型、四片翼柱彤和五片翼柱型藥柱三種燃燒室形狀聲學振動基本模態
  4. Wave - body interaction computation by a three - dimensional unsteady eulerian finite element method

    用三維非定常歐拉有限元方法進行波體干擾計算
  5. Although the structure is simple, the unsteady fluid flow and the action of the wave in the tube are very complicated. so far, there exists a lot of problems need to investigate

    熱分離機的結構雖然簡單，但其振蕩管內部流動及有關過程的相互作用卻十分復雜，還存在許多有待解決的問題。
  6. A special type of unsteady motions which bear a resemblance to plane wave solutions of the linear theory of elasticity can be constructed.

    一種特殊類型的、和線性彈性理論中的平面波解有點相象的非穩態運動可以建立起來。
  7. The unsteady input commercial frequency sinusoidal voltage with high harmonic is modulated into bi - polarity three - state high frequency ac volage by the input cycloconverter, bi - polarity three - state high frequency ac volage is demodulated into uni - polarity three - state spwm wave by the output cycloconverter, and the uni - polarity three - state spwm wave is filter into steady commercial frequency sinusoidal voltage with low harmonic

    輸入周波變換器將輸入不穩定劣質的工頻正弦交流電壓調製成雙極性三態的高頻交流電壓波，輸出周波變換器將此高頻交流電壓波解調成單極性三態spwm波，經輸出濾波后得到穩定優質的工頻正弦交流電壓。
  8. The simulation of three examples shows that the method has high - resolution when it is applied in unsteady and quasi - steady flows with the sharp wave in discontinuous problems and suitable to computation of the shallow water flows

    對二個模型算例的數值模擬結果表明：該演算法對擬恆定流和非恆定流模擬都有較高的解析度，具有處理間斷問題的銳利波形能力，適合淺水流動的數值模擬。
  9. Abstract : some typical results of computation on the shock ( blast ) wave interaction ( 2 - d and 3 - d ) with bodies and its experimental validation in shock tube are summarized, the suggestion for improving the numerical method ( difference scheme and grid systems ), developing 3 - d optical quantitative visualization technology and further studying the unsteady turbulent flow are put forward

    文摘:給出了在二維和三維條件下激波（爆炸波）與物體相互作用的一些典型計算結果，概括總結了激波管中實驗的有效性，提出了改進數值方法（包括差分格式，網格系統） ，發展三維光學定量可視化技術和進一步研究非定常湍流的建議。
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