Question

英文摘要翻译

如图内文字，不能逐句翻译。。。不然我就直接百度翻译了，求个大神翻译的通顺一点。

Answer 1

可以用Google翻译，翻译过后稍微修改即可

Answer 2

尔雅课程安排好的关心关心

Answer 3

有道词典，推荐

Answer 4

呵呵呵

Answer 5

通过抽气来实现层流主动控制是减少飞机的摩擦阻力，提高飞机性能，实现绿色航空的重要途径。本文基于某层流主动控制减阻实验需求，从抽气减阻功能原理出发，分析了抽气系统整体气动性能，提出了基于旋涡气泵的抽气系统设计方案，并通过仿真与实验相结合的方式对该系统展开研究，主要工作内容如下：
1)分析了抽气技术对层流减阻的作用，根据某层流控制减阻实验所给参数，分析了抽气系统的整体气动性能需求，设计了抽气系统方案，将系统分为气路系统与测控模块两部分，并依据抽气系统设计参数完成了主要设备的选型。
2)依据某层流主动控制减阻实验参数及抽气系统气动性能需求，设计了汇管式进气管路并分析了整体压降，使用COMSOL Multiphysics软件对该管路结构进行了流固耦合仿真；确定了旋涡气泵的压差与流量关系为关键研究对象，在分析了旋涡气泵的结构特点及工作原理的基础上构建了旋涡气泵流道及叶轮的三维物理模型，在分离了内外流体域的基础上使用Fluent软件中多重参考系模型(MRF)模拟其旋转运动进行了流场仿真，得出了工况条件下旋涡气泵的抽气性能参数。
3)分析抽气系统对流量控制的要求，设计了基于STM32芯片的流量测控模块。重点设计了流量测量电路和调节阀控制电路；设计了控制器所需程序，基于气体流量积分分离式PID控制算法设计了流量自动控制程序；对所设计电路进行了软硬结合的测试，保证了流量测控功能的实现。
4)设计并搭建了单支路抽气实验平台，通过试凑法完成了PID控制算法的参数整定；利用机载上位机与流量测控模块通信实现了流量的闭环自动控制；在模拟工况条件下，对旋涡气泵的压差与流量之间的关系进行了测量，所得结果为后续研究提供了重要的支撑。
The active control of laminar flow by pumping air is an important way to reduce the frictional resistance of the aircraft, improve the performance of the aircraft, and realize green aviation. Based on the principle of a laminar flow active control drag reduction experiment, the overall aerodynamic performance of the pumping system is analyzed based on the principle of pumping drag reduction function. The design scheme of the pumping system based on the vortex air pump is proposed and combined by simulation and experiment. The way to study the system, the main work is as follows:
1) The effect of pumping technology on laminar flow drag reduction is analyzed. According to the parameters given by a laminar flow control drag reduction experiment, the overall aerodynamic performance requirements of the pumping system are analyzed. The pumping system scheme is designed and the system is divided into gas. The road system and the measurement and control module are two parts, and the selection of the main equipment is completed according to the design parameters of the pumping system.
2) According to a laminar flow active control drag reduction experimental parameters and aerodynamic performance requirements of the pumping system, the manifold inlet piping was designed and the overall pressure drop was analyzed. The fluid-solid coupling simulation of the pipeline structure was carried out using COMSOL Multiphysics software. The relationship between the pressure difference and the flow rate of the vortex air pump is determined as the key research object. Based on the analysis of the structural characteristics and working principle of the vortex air pump, the three-dimensional physical model of the vortex air pump flow passage and the impeller is constructed, and the internal and external fluid domains are separated. Based on the multi-reference frame model (MRF) in Fluent software, the flow field simulation was carried out by simulating its rotational motion, and the pumping performance parameters of the vortex air pump under working conditions were obtained.
3) Analyze the requirements of the pumping system for flow control, and design a flow measurement and control module based on STM32 chip. The flow measurement circuit and the control valve control circuit are designed. The program required by the controller is designed. The flow automatic control program is designed based on the gas flow integral discrete PID control algorithm. The design of the designed circuit is tested by software and hardware. Implementation of flow measurement and control functions.
4) Design and build a single-branch pumping experimental platform, complete the parameter tuning of PID control algorithm through trial and error method; realize closed-loop automatic control of flow by using airborne upper computer and flow measurement and control module communication; under simulated working conditions Next, the relationship between the pressure difference and the flow rate of the vortex air pump was measured, and the obtained results provided important support for the subsequent research.
以上是谷歌翻译结果，请自行修改。