transient eddy 中文意思是什麼

transient eddy 解釋
瞬變渦流
  • transient : adj 短暫的，一時的；過渡的；匆匆而過的；易逝的；虛幻的，無常的 （opp lasting permanent）; 【物理...
  • eddy : n. 埃迪〈姓氏〉。n. （水，風塵等的）漩渦，渦流。vt. ,vi. （-died; -dying） （使）起漩渦；（使）旋轉。
  1. The mathematical model of non - linear transient magnetic field excited by voltage source is established in this paper. it coupled with electric circuit equation and mechanical motion equation, could solve the transient problem excited by voltage source, and the effect of the eddy currents, non - linearity in magnetic materials and mechanical motion of medium is taken into account

    文中建立了電壓源激磁下的非線性瞬態磁場的數學模型，通過把瞬態磁場方程、電路方程及機械運動方程耦合在一起，得出求解電壓源激磁下，考慮鐵磁材料的非線性、導電媒質的渦流及媒質機械運動等條件下的瞬態過程問題。
  2. Uniqueness and stability of solution to the linear transient eddy current electromagnetic field problem for determining solution

    線性瞬態渦流電磁場定解問題解的唯一性和穩定性
  3. Secondly, some recently research results and some unsolved problems about the magnetic vector potential a, electric scalar potential and magnetic scalar potential of the transient eddy current formulation are deeply analyzed in the paper and the magnetic vector potential a is chosen to calculate the specified physical model discussed in this paper

    其次，概括地分析了國內外對向量磁位（ ? ） 、標量電位、標量磁位的研究現狀及存在的問題，在此基礎上，確定用向量磁位（ ? ）來計算永磁操動機構的物理模型，並證明在二維非線性情況下，庫侖規范自然滿足。
  4. The working principle of pulsed eddy current ( pec ) nondestructive testing technology is analyzed, the pec testing system was been established to examined the specimen of multi - layered aircraft structure, peak and zero - crossing time of the time domain transient response signal of pec are extracted as the features to detect the corrosion in the second layer of aircraft structure quantificationally, the experiment results are consistent with that of the theory analysis, as the pec have the advantages of fast speed and quantification, this makes the method have the broad using foreground in the testing of aircraft structure corrosion

    摘要對脈沖渦流無損檢測技術的工作原理進行了分析，建立了脈沖渦流的檢測系統對加工的模擬飛機多層結構的試件進行了測試，提取其時域瞬態感應信號的峰值和過零時間作為特徵量，對出現在飛機多層結構第二層中的腐蝕缺陷進行了定量檢測，試驗結果和理論分析相一致，證明了脈沖渦流檢測方法的有效性，由於其具有快速和定量化的優點因而在飛機結構的腐蝕檢測中具有廣闊的應用前景。
  5. In this thesis work, a 1 - d hydraulic transient model and a 2 - d compressible flow model with the large eddy simulation approach have been applied to analyse the hydrodynamic process of the unsteady separated flow. prototype observation data of gezhouba shiplock no. 3 has been used to verify the computational results. it has been found that two different types of flow regime - stably - varying and strongly - oscillating regimes - could occur in the radial gate tunnel

    本文採取將一維非恆定流模型與二維可壓縮流一大渦模擬模型相結合的方法，分析了急變分離流的水動力學特性，並利用葛洲壩三號船閘的原型觀測資料驗證了數值模型的可靠性，發現閥門段存在平穩變化型和劇烈振蕩型兩種不同的流態，並詳細計算、分析了它們的流動特徵
  6. The paper proves that in the 2d non - linear case, the coulomb gauge is been meet naturally. in the paper, the second - order isoparametric fem is adopted in the non - linear transient magnetic field simulating excited by current source and the results of transient field and static field solved by the second - order isoparametric and linear fem are compared and analyzed, besides, the effect of the eddy currents in the magnetic materials of the different conductivity is analyzed, it is obtained that the magnetic material of high magnetic conductivity and low loss should be chosen in designing of pma

    文中採用二次等參元有限元法推導出在電流源激磁下的非線性瞬態磁場的計算方法和編制了相應的計算程序，並採用二次等參元有限元法和雙線性有限元法分別對瞬態場和靜態場進行了計算，並對計算結果進行了誤差分析，此外，還對不同電導率的導磁材料中渦流產生的影響進行了分析，得到結論設計永磁操動機構時，應選擇導磁性能好，損耗低的導磁材料。
  7. Large eddy simulation of transient turbulent flows in model combustor

    三維貼體坐標系下燃燒室熱態流場的大渦模擬
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