例句與造句

1. An experimental study on the turbulent boundary layer flow field and its noise
   湍流邊界層流場與噪聲實驗研究
2. The direct numerical simulation methods for turbulent spots in the channel , open - channel and boundary layer flows are built respectively . effective algorithms composed of time - advancing , over - relax iteration and multiple grid methods are planned to raise computational efficiency
   分別建立了適用于在槽道、明渠和平板邊界層流動中直接模擬湍斑的數(shù)值方法，并精心設計了時間推進、超松弛迭代和多重網格等高效算法，以提高計算效率。
3. The numerical models with the wall impulse as initial perturbation of turbulent spots were proposed . the above compact difference systems are used in the several typical flows , such as . the channel , open - channel and boundary layer flows the various complicated boundary conditions satisfying n - s equations are carefully conducted
   建立了以壁面脈沖為初始擾動的湍斑數(shù)學模型，并將導出的navier - stokes方程的緊致差分方程組應用于槽道、明渠和平板邊界層等典型流動，提出了嚴格滿足navier - stokes方程的邊界條件。
4. The main results of the wind tunnel experiment on the 1 200 model of the chinese national grand theatre were introduced . at first , the wind pressure distributions of its semi - ellipsoidal surface in an atmospheric boundary layer flow were simulated , and the effect of the surface roughness was researched . the results indicated a reasonable regularity of its wind loading in various wind directions . on the problem of the environmental influence , it demonstrated that there existed a great effect for the pressure distribution of the great theatre when the grand hall is at east
   介紹中國國家大劇院模型表面風荷載的風洞實驗結果。首先對它的半橢球表面在大氣邊界層中的風壓分布及增加表面粗糙度的影響進行研究，實驗結果表明在不同風向下它的風荷載具有很好的規(guī)律性。有環(huán)境影響的對比實驗結果表明人民大會堂對大劇院的風荷載有較大的影響。
5. 3 . the characteristics of boundary layer ' s transition , shape and separation are researched . the details as follows : ( l ) airfoil surface is turbulent boundary layer flows ; ( 2 ) velocity figure changed unsteady near the point of boundary layer separation due to randomicity of turbulent flow ; ( 3 ) the airfoil have better state of boundary layer separation and poor stall characteristics because of the upper surface of airfoil is flat
   給出了該翼型的附面層特性：翼型表面基本為湍流附面層；在靠近附面層分離位置處，速度型形狀、特別是靠近翼型表面的底部速度型形狀變化不定，是湍流流動的隨機性所致；該翼型具有較好的附面層分離形態(tài)，但在失速迎角附近，附面層分離形態(tài)變化劇烈、失速特性差，是翼型上翼面形狀較為平坦所致。
6. It's difficult to find boundary layer flow in a sentence. 用boundary layer flow造句挺難的