附面层特性 meaning in Chinese
behavior of boundary layer
boundary layer characteristics
Examples
- 4 . the influence of reynolds number to aerodynamics and boundary layer is investigated . 5
( 4 )研究了雷诺数对翼型气动力和附面层特性的影响。 - 2 . the aerodynamics characteristics of this airfoil is studied in wind tunnel . this studies provides the direction of the research on boundary layer
( 2 )进行了翼型的低速气动力性能研究，为附面层特性研究提供了方向。 - Provide the experimental research scheme to measure and diagnose boundary layer of airfoil . the satisfied results demonstrated that this scheme is correct and efficient . it provides the reliable foundation on analysis of boundary layer characteristics and vortex generators " design
研究结果表明，该方案是正确的，既切实可行、节约了实验经费，又获得了满意的实验结果，为分析附面层特性和涡流发生器的设计提高了可靠依据。 - 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
给出了该翼型的附面层特性：翼型表面基本为湍流附面层；在靠近附面层分离位置处，速度型形状、特别是靠近翼型表面的底部速度型形状变化不定，是湍流流动的随机性所致；该翼型具有较好的附面层分离形态，但在失速迎角附近，附面层分离形态变化剧烈、失速特性差，是翼型上翼面形状较为平坦所致。 - In this paper , the boundary layer characteristics of a supercritical airfoil is researched in wind tunnel . from the start to control boundary layer separation and to improve aerodynamics characteristics of this airfoil , three kinds of trapezoid , delta and airfoil shaped vortex generators are designed based on traditional , sub boundary layer and micro - vortex generators conceptual design . it include as follows : 1
研究工作中，从控制该翼型附面层分离、提高大迎角气动性能的角度出发，通过风洞实验研究，研究了该翼型的附面层特性和气动性能，针对其附面层特性，给出了梯形、三角形和翼型式三种涡流发生器设计方案，为下一步研究工作奠定了坚实基础。