正激波方程 的英文怎麼說
中文拼音 [zhēngjībōfāngchéng]
正激波方程
英文
normal-shock equation- 正 : 正名詞(正月) the first month of the lunar year; the first moon
- 激 : Ⅰ動詞1 (水因受到阻礙或震蕩而向上涌) swash; surge; dash 2 (冷水突然刺激身體使得病) fall ill fr...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 方 : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
- 程 : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
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The most achievement is that we firstly obtain the analytic accurate solution of the modal fields of the waveguide structure and find some available character : ( 1 ) the different uniaxial crystal materials have the different propagation properties ; ( 2 ) when the optical axis of the crystal is on the plane that is made up of the normal direction of the waveguide plane and the propagation, there are te mode and tm mode in this special waveguide, but the principal mode is different of the character of the uniaxial crystal, the principal mode is the principal mode of te mode for the negative uniaxial crystal, but the one of tm mode for the positive uniaxial crystal ; ( 3 ) when the crystal optical - axis parallel to the waveguide plane, for the positive uniaxial crystal material, the principal mode of the waveguide is a te wave, which can be excited by the light at any frequency ; when the light frequency satisfies a single mode propagation condition, there will be only the principal mode propagating in the waveguide, otherwise some of the higher order modes can be excited, which are neither te modes, nor tm modes, but the hybrid guided modes
本文就是在此背景下,利用金屬波導和單軸晶體的一些特性,結合麥克斯韋方程組和波導的邊界條件,從三種不同的情況研究了光在對稱平面單軸晶體金屬波導(波導層是單軸晶體,兩個波導界面均為金屬)內的傳輸特性,其主要貢獻為,首次解析地得到了這種波導結構下模式場的精確解,並發現了一些有用的特性: ( 1 )模式場的性質因單軸晶體的性質不同而異; ( 2 )當單軸晶體光軸位於波導界面法方向與傳輸方向構成的平面內時,波導中傳輸te波和tm波,只不過其主模因單軸晶體的性質不同而異,當波導層介質為負單軸晶體時,波導主模是te波主模,而波導層介質為正單軸晶體時波導主模是tm波主模。 ( 3 )當單軸晶體光軸位於波導面內時,對于正單軸晶體,波導的主模是橫電波te _ 0模,任何頻率的光波均可激勵該模式;當光波波長滿足一定條件時,波導內傳輸單模,否則,將激勵起高階模式,高階模即匪te波,也匪tm波,而是兩者耦合而成的混合模。The numerical simulation of axisymmetric two - dimensional shock tube is studied, which has a conical convergent section, and its driving gas is the hot product of hydrogen oxygen detonation. finite volume tvd scheme is adopted and the mesh is local orthogonal. the primitive equations are euler s equations of multi - component flow. the new method of eliminating numerical oscillation at the interface of two materials is extended to two dimensions. the mechanical character of this shock tube is analyzed
對由前向爆轟產生驅動氣體並具有局部錐形收縮截面的軸對稱激波管利用兩相常比熱完全氣體的歐拉方程組和有限體積tvd格式在局部正交的網格上進行了二維數值模擬。將消除兩種介質界面處數值振蕩的新方法成功地推廣到二維情況。分析了該激波管的力學特性。Based on the relationship between the change of the cornea thickness and optical path length, the ablation profile for the correction of wavefront aberration is presented and simulated on computer. the process of scanning - spot excimer laser is studied and simulated on computer. models for calculation of residual wavefront aberration on situations of lateral decentration and torsional misalignment are brought up
使用改變光程的方法建立起波前像差與角膜切削量之間的關系,並對像差矯正模型進行計算模擬;深入研究了小光斑準分子激光飛點掃描模型,對飛點掃描過程進行計算模擬;提出了中心偏移和旋轉情況下剩餘像差計算模型,為定量研究切削中心定位精度對像差矯正的影響提供了依據。In order to get the optimal wavelength pairs for two - color satellite laser ranging, with the factors including atmosphere effect, the response of the receiver and the laser considered, beginning with the precision of atmosphere correction, based on the lidar equation, the wavelength figure of merit, which can determine whether the pair is selected properly, is obtained
摘要為獲得雙波長衛星激光測距的最佳波長組合,考慮了大氣效應、接收光電器件的響應、激光器等因素,從大氣改正精度出發,利用激光雷達方程,得到了評價波長組合優劣的波長優數公式。The quantitative relation of both the p - wave particle displacement proportion to charge and the root mean square of amplitude proportion to the 3 / 2 root of cavity radius was obtained, then the elongated charge, and the vertical delay stacked source, and the concentrating energy source, and the detonating seismic hammer, and opposite collision source were developed
本文基於球腔震源的縱波位移方程、激發子波的振幅及頻率與藥量的關系等理論基礎,總結了縱波質點位移與藥量成正比、振幅譜均方根與空穴半徑的3 2次方成正比的定量關系。The intracavity photon density and initial population inversion density are assumed to be gaussian distributions instead of plan wave assumption, based on this assumption, the rate equations of diode - pumped intracavity - frequency - doubled passively q - switched laser are modified. through solving these space - dependent rate equations numerically, the results under different assumption are compared. 5
將腔內光子密度和初始反轉粒子數的平面波近似修正為高斯分佈近似,獨立地導出描述二極體泵浦內腔倍頻-被動調q激光器的速率方程,並通過數值求解該方程比較了兩種近似下脈沖特性的不同; 5 .實驗驗證了2中提出的實驗方案,並對實驗結果進行了分析。This paper gave a general method to solve the accelerate damage boundary ( adb ) of the packaging system by finding the adb of two representative packaging systems under type wave. as for the displacement damage boundary ( ddb ) of the packaging system, this paper fist defined the dda of the bilinear packaging system under half - sine wave and other kind packaging systems by analysis. moreover, the course of solve this kind of problem by analysis was given
論文研究了兩種典型脈沖激勵下的非線性包裝系統的加速度損壞邊界及其影響因素,總結了求解加速度損壞邊界問題的一般思路;針對包裝系統的位移損壞邊界,文中首次運用解析法確定了半正弦波激勵下雙線性包裝系統的位移損壞邊界,歸納了用解析法解決此類問題的一般過程,同時,本文還對此給出了應用更為廣泛的一種數值方法。In the area of elasto - plastic dynamic analysis of frame with friction energy dissipation, the design - oriented nonlinear seismic response time history analysis method for frame with friction energy dissipation has been set up. and the corresponding program idaff is developed using visual c + + language ; the analytic solution of a single - damped - story braced frame with friction energy dissipation under the sine wave excitation has been give ; besides these, a vibration reduction analysis of multi - story frame with friction energy dissipation has been given in the paper and some useful conclusions have been drawn
在摩擦耗能框架結構彈塑性動力分析方面,本文建立了面向設計的摩擦耗能框架結構非線性地震反應時程分析方法,並利用vc + +編制了相應的程序idaff ;給出了帶有摩擦耗能器的有阻尼單層框架在正弦波激勵下反應的解析解;同時本文從多自山度的角度出發對摩擦耗能框架的影響因素進行分析,得出相關的結論。In this thesis, a 2 - d axial symmetric n - s equation was solved by using steger - warming flux splitting, muscl, b - l model and finite volume method to simulate an experiment, which was to observe explosion phenomenon
本文用steger - warming分裂和b - l湍流模型的有限體積演算法求解二維軸對稱navier - stokes方程,數值模擬了錐形激波管中爆炸波運動和爆炸波正壓和負壓脈沖。The response and excitation signals are first decomposedusing the daubechies wavelet scaling function. then the differential vibrationequations of the time - varying system are transformed into simple linear equationsbased on the orthogonality of the scaling functions. the physical parameters can beidentified directly by solving the linear equations
運用daubechies小波對線性時變系統的激勵和該激勵作用下的響應做變換,將變換后的響應和激勵代入微分方程,利用daubechies小波尺度函數的正交性,將微分方程轉換成簡單的代數方程組,求解方程組,識別系統的時變參數。The structure and character of deformable mirror were analyzed, and the conflict between the deformation band and the pitch of deformable cells was pointed out. the " two - time compensation " wave - front correct mode was introduced to settle that conflict. the method for allocating wave - front aberration and designing static corrector was found, and the " two - time compensation " wave - front correct mode was validated by simulation
分析了變形鏡的結構特點,初步給出了變形鏡本身驅動單元數與校正量之間的制約關系;引入「二次補償」波前校正方案,解決了變形鏡校正量有限與高功率固體激光系統波前誤差起伏量大的矛盾,建立了波前校正對象優化分配、靜態校正器優化設計等細節過程所需要的方法,通過模擬模擬驗證了「二次補償」波前校正方案對于降低變形鏡校正量要求和放寬光學元件加工精度的作用; 5分享友人