stream surface meaning in Chinese
河道水面
气流面
Examples
- What ' s more , we put forward some experienced formulas on the basis of the cortical analysis . the result of the research show that by installing diffluent piers with low ridge , we can eliminate the root of oscillatiny water jump , perfect the energy dissipation effect of water jump , also , we can improve the flow condition of down - stream . the fact that the main flow of down - stream is in the middle , not only effectively lower the speed of the bottom flow in the ridge rear , alleviate the erosion to the river bed , but also avoid the heavy wave resulted from the main flow in the surface , thus improve the surface wave of down - stream obviously . we can work out the body style parameters of diffluent piers with low ridge according to the project flow condition and experience formulas , and then reckon the down - stream surface wave condition for the protected building of the down - stream bank
研究结果表明：设置低坎分流墩后，消除了摆动水跃水舌摆动的根源，提高了水跃的消能效果，改善了下游水流流态。下游水体的主流在中部，既有效的降低了坎后水流底流速，减轻水流对河床的冲刷，又避免了主流位于表面导致波浪过大的结果，下游的水面波浪明显得到削减。依据经验公式，可根据工程水流条件设计出低坎分流墩的体型参数，进而估算出下游沿程的水面波浪，为下游岸边的砌护提供依据。 - In the thesis , the design method of the diagonal flow fan impeller has detailedly researched different from the previous means borrowing and extending design methods for axial flow or centrifugal type , a complete design method has presented on the basis of quasi - three dimensional design idea . the course is mainly composed of such steps as meridional surface design , inverse problem computation in meridional surface , blade shaping on stream surface , and verifying through three dimensional computation , until the design requirement is met at last
不同于以往的轴流式或离心式延长设计方法或经验方法，本文按照准三元设计的思路给出了一套完整的设计方法，即子午面设计?子午面反问题计算?斜流流面上叶片造型?三维计算验证优化，直至符合设计目标。 - The main object of this paper is to design a diagonal impeller , which requires small size and high rotating speed . the first step of the design is to solve the radial equilibrium equations on the s2 stream surface . second , the blades designed according to the results of the first step
方案计算是为二维设计做基础；二维设计是在s2流面内用流线曲率法求解完全径向平衡方程，利用流场计算的结果来初步判断设计的工程合理性；叶片造型利用s2流场的计算结果，近似沿着气流流面进行造型。