用激光流速计测量柴油机气缸内的空气流动

• 作 者: 松岡信 永倉克彦 赵效班
• 出 处: 国外舰船技术(内然机类)
• 发表日期: 1983年08期
• 关键词: 激光流速计 上死点 紊流 直喷式柴油机 气缸 流速场 喷射式 柴油机燃烧 气体温度 柴油机气缸

一、前言在直接喷射式柴油机(简称直喷式柴油机)中,气缸内的涡流或紊流是支配燃烧过程的主要因素,因此对它们的测量是柴油机燃烧研究的重要课题。以前,多用热线风速计测量,但是用于气缸内气体温度很高的柴油机时则产生很大的困难。然而应用激光流速计测量却不受流速场的压力和温度的限制。近几年,发表了多篇有关把激光流速计用于发动机上的研究报

I. Introduction In the direct injection diesel engine (referred to as direct injection diesel engine), the vortex or turbulence in the cylinder is the main factor that dominates the combustion process, so the measurement of them is an important issue in the study of diesel engine combustion. In the past, the use of hot-wire anemometer measurements, but for the cylinder gas temperature is very high when the diesel has great difficulties. However, the use of laser flowmeter measurements are not subject to the pressure and temperature of the flow field limits. In recent years, published a number of articles on the use of laser flowmeter on the engine research report