邊界擾動問題 的英文怎麼說
中文拼音 [biānjièrǎodòngwèntí]
邊界擾動問題
英文
boundary perturbation problem- 邊 : 邊Ⅰ名詞1 (幾何圖形上夾成角的直線或圍成多邊形的線段) side; section 2 (邊緣) edge; margin; oute...
- 界 : 名詞1 (相交的地方; 劃分的界限) boundary 2 (一定的范圍) scope; extent 3 (按職業、工作或性別等...
- 擾 : Ⅰ動詞1 (擾亂; 攪擾) harass; trouble 2 (客套話 因受人款待而表示客氣) trespass on sb s hospital...
- 問 : Ⅰ動詞1 (請人解答) ask; inquire 2 (詢問; 慰問) question; ask about [after]; inquire about [aft...
- 題 : Ⅰ名詞1. (題目) subject; title; topic; problem 2. (姓氏) a surname Ⅱ動詞(寫上) inscribe; write
- 邊界 : boundary; frontier; border; borderline; edge range line; periphery
- 擾動 : excitation; turbulent motion; turbulence; destabilization; [物理學] perturbation motion; [地質學]...
- 問題 : 1 (需回答的題目) question; problem 2 (需研究解決的矛盾等) problem; matter 3 (事故或意外) tr...
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With the fourier series technique, the disturbance is discomposed into predominant mode and high frequency harmonics. the nonlinear stability of three - dimensional disturbances for the blasius boundary layers is studied
藉助fourier級數的方法將擾動波分解為基本模態和高頻模態,研究了三維擾動的非線性邊界層穩定性問題。Under the assumptions of non - convexity and non - degeneration, it is proved that the solutions of the initial - boundary problem to this viscoelastic model tend towards the travelling wave solution of the corresponding cauchy problem time - asymptotically for zero boundary speed and small initial perturbation by a weighted energy method
對粘彈性模型,用權能量方法證明了在非凸非退化的情形下,當邊界速度為0 ,初始值具有小擾動時,具初邊值問題的解收斂于相應的柯西問題的行波解。The prediction of disastrous space weather is a hot topi c among solar - terrestrial physics and high technological fields. we propose that the future forecasting of the physical conditions that the violent solar disturb ance causes at the earth by propagating in solar wind depends heavily on the num erical method. this paper analyses the existing problems we are facing in the num erical prediction of disastrous disturbance events in solar - terrestrial space, an d then gives some suggestions for future study. for such a purpose, a six step sol ution method is developed to deal with one - dimensional symmetric interplanetary shock dynamics. it should be point out that that initialization of fully self - con sistent 3 - d mhd codes considering the solar - interplanetary - geomagnetic coupled r elations with initial - boundary values at 1r of the global output of solar pl asma and magnetic field using available solar observations is an essential requi rement in space weather operational codes for forecasting purposes
空間災害性天氣的預報是日地物理學界及高科技領域的熱門話題.未來預測太陽劇烈擾動所造成的行星際風暴到達地球空間的狀態勢必藉助于數值方法.淺析了空間災害性擾動事件數值預報存在的問題及未來設想,針對這一目的對一維球對稱問題提出了處理行星際激波的6步求解方法,指出未來空間災害性擾動事件預報模式應是一個基於三維的以真實太陽風為背景自洽建立起來的、以太陽等離子體輸出及磁場全球結構為初邊值、太陽、行星際、地磁因果耦合模式In the end, this thesis also devises numerical experiment for problems with small perturbation on its boundary strip. result shows that rannacher - turek element becomes exceptionally unstable. on the contary, extensional rannacher - turek element is more reliable
最後,本文又對所處理區域的邊界帶有小擾動的問題,進行了數值實驗,實驗結果表明rannacher ? turek元變得異常不穩定,而相比之下拓廣的rannacher ? turek元更可靠。The unbounded perturbation of a hille - yosida operator and the wellposedness for a class of abstract boundary value problems
運算元的無界擾動與一類抽象邊值問題的適定性The linear and nonlinear stability of different disturbances in parallel and nonparallel boundary layer are researched. the development of growth rate of small disturbances and the effect of non - parallelism and pressure gradient on the stability of boundary layer are studied especially
研究了不同情況下的擾動演化過程,特別是擾動增長因子的變化,這是穩定性研究的關鍵問題,還著重研究了非平行性和壓力梯度對邊界層穩定性的作用。In this thesis, the parabolic stability equations ( pse ) in the different coordinate systems are driven from navier - stokes ( n - s ) equations. the stability problems of the boundary layers for three - dimensional body, and the spatial evolution process of the c - type instability are studied
本文從navier - stokes ( n - s )方程出發,導出了不同坐標系下的拋物化穩定性方程( pse ) ,研究了三維物體的邊界層穩定性問題,以及三維擾動的c型失穩的空間演化過程。分享友人