Loss of head is minimized by the balanced disc and its " aerofoil " design . streamlined body without pockets contributes to straight - through flow 通过平衡阀瓣及其“翼型”结构，将水头损失(或位差损失)降到最小程度。流线型阀体，不再需要凹穴来帮助流体直线流通。
In the end , using the product development process of aerofoil rib a software platform which supporting dmpa modeling is developed with software visual c + + 6 . 0 and access 2000 以飞机垂尾的产品开发过程为对象，采用用visualc + + 6 . 0和access2000完成了系统的程序设计，开发了基于dmpa的过程建模系统。
On the background of aeronautics and astronautics requirement , along with the line of modularization of fiber optic smart structure , aimed at the safety matter of aerofoil pivotal parts , build optic fiber smart layer self - diagnosing system 以航空航天需求为背景,以光纤智能结构的集成为主线,针对飞机机翼关键部件安全性问题,建立了基于光纤智能夹层的自诊断系统。
In this paper , some flows around naca 0012 aerofoil , m6 wing and two different blunt vehicles are simulated , the results show that the present algorithm possesses good characteristics and capability for normal mach number and for hypersonic of simple configurations 通过对naca0012翼型、 m6机翼、钝头以及双钝锥?柱体的算例验证，本文能很好的解决一般马赫数问题，能够很好的求解简单外形的高超声速问题，对于复杂外形飞行器还需要进一步进行研究验证。
Abstract : in this paper , a principle and method of the speed pulse waveform sampling are introduced . its object is to study an effect of the turning factor on torbulence . test is done in the aerofoil fengwen . on design of the user interface , application of the timer and displaying way of a pape and continuity are specifically discussed . expermental results and analysis is showed at the last 文摘:以翼型风洞为对象，着重介绍了变湍流度对翼型转捩因子影响的速度脉动波形采集的原理和方法，重点对波形采集系统用户界面的设计、定时器的应用、分页显示和连续显示等技术进行了具体介绍，并给出了实验结果及分析。
