unsteady solution 中文意思是什麼

unsteady solution 解釋
非穩定解
  • 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.
  • solution : n. 1. 溶解；溶液，溶體，溶劑。2. （補輪胎用的）橡膠水；〈美國〉藥水。3. 解決，解答 （of; for; to）; 解釋；（數學等的）解法，解式。4. 免除，解除。5. 【醫學】消散，消退。
  1. In the second part, firstly, the mathematical model for predicting hydrodynamic characteristics of varivec propeller under steady or unsteady condition are present, based on the general propeller lifting - surface theory, potential flow theory and green theorem. then, theoretical calculation methods for predicting hydrodynamic characteristics of varivec propeller designed above paragraphs are present, based on the finite basic solution method, the unsteady vortex lattice method and hess - smith method

    在理論計算部分，本文首先基於常規螺旋槳升力面理論、勢流理論和格林定理建立了定常和非定常狀態下全方向推進器水動力性能計算的數學模型，然後利用有限基本解法、非定常渦格法和赫斯?史密斯方法對全方向推進器定常和非定常狀態下的數學模型進行了數值離散，接下來針對前面所設計的全方位推進器進行了數值預報。
  2. Compared with the reality, it shows that this model and its parameters are defined reasonablly. to analyse the arrangement of drainage system with different spacings and depths, with unsteady flow formula and benefit index, this paper gives a two - dimensional non - linear programing model for arrangement of drainage system in the barley field, which can be solved by the method of projected gradient. by this model, we make out the optimum solution of spacings and depth of pvc pipe in littoral area of changjiang river that is s = 21. 5 8m, h = l. lm

    論文通過對不同埋深、間距的塑料暗管排水布局的分析，結合非穩定流公式和效益指標，提出了麥田排水暗管布局的二維非線性規劃模型，並利用梯度投影法求解，得出長江下游濱海地區塑料排水暗管埋設的最優方案為埋深h = 1 . 1m ，間距s = 21 . 58m 。
  3. Employing euler based steady solution and piston theory, a new method ( we call it local piston theory in this paper ) to solve supersonic or hypersonic unsteady loads has been developed

    發展了一種運用定常cfd方法和活塞理論求解超音速、高超音速非定常氣動力的新方法?當地流活塞理論。
  4. Analytical solution of crystal growth for two - dimension unsteady state

    二維非穩態晶體生長控制方程的解析解
  5. Solution to 3 - d unsteady saturated - unsaturated seepage problem and accurate treatment of saturated and unsaturated exit surfaces of seepage

    非飽和滲流場求解及其逸出面邊界條件處理
  6. Presents the study on the cross - effect of heat and mass transfer of capillary porous media a. b. luikov set up on the irreversible thermodynamics principle with the theoretical solution of unsteady drying process given and its validity verified though experiments, and analyses using the mathematical model the influence of all factors on temperature and moisture distribution and the cross - effect of heat and mass transfer during drying processes

    針對雷柯夫建立在不可逆過程熱力學原理上的傳熱與傳質方程組，著重研究毛細多孔介質內傳熱與傳質過程中的交叉效應.得出了非穩態乾燥過程的理論解，並通過實驗驗證了其正確性，利用該模型分析了乾燥過程中各因素對內部溫度場和濕度場的影響以及交叉效應在乾燥過程中的作用
  7. This paper has presented the calculation formula and numerical solution methods to determine the range and volume of partially cavity, supercavity by using surface panel method, and has predicted the range and volume of unsteady cavitation of propeller by using surface panel method for the first time inland

    本文敘述了應用面元法確定非定常螺旋槳局部空泡、超空泡的范圍和體積的計算公式和數值求解方法，在國內首次應用面元法預報了螺旋槳非定常空泡的范圍和體積。
  8. One - dimensional perturbation solution of the problem about the unsteady fluid - solid coupling seepage in coal methane unsaturated water flow phase

    煤層氣非飽和流階段非穩態流固耦合滲流的一維攝動解析解
  9. A new approximate solution for multiple - layer cylindrical walls of unsteady - state heat conduction

    一種求解復合圓筒壁非穩態導熱問題的新方法
  10. In order to accelerate the convergence speed, we employ the local time step, and implicit residual smoothing methods. finally, we use this method to get the steady solution of the flow around naca0012 and naca4412 airfoil at very low speed and some basic unsteady solution

    本文對在低馬赫數下繞naca0012翼型和naca4412翼型的定常流場進行了求解，結果和實驗基本吻合，並對非定常運動情況進行了初步模擬研究，得出了一些有意義的結果。
  11. This model is formulated as a non - linear state - space representation of helicopter flight dynamics, incorporating with blade element unsteady aerodynamics, a finite state dynamic inflow wake model, and flapping / lead - lag blade dynamic model. the formulation of the coupled rotor and fuselage equations enables the use of common solution techniques for trim and linearization in arbitrary steady flight condition as well as control response calculations

    本項研究針對新機研製過程必須解決的品質評定、飛控系統設計等問題，按照ads - 33軍用品質規范的要求，建立了一個較完整的直升機非線性的、具有狀態空間表達形式的飛行動力學模型，進行了模型驗證工作，並以某樣例直升機為例，計算了ads - 33品質規范（ 3
  12. Stability about the solution of crystal growth in the two - dimensional unsteady state problem

    二維非穩態晶體生長問題解的穩定性
  13. The convergence of approximate solution for galerkin finite elements method and the existence of generalized solutions of the unsteady neutron transport equation in multidimension

    有限元法近似解的收斂性和廣義解的存在性
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