CAJ | 학술논문

基于定常假设，利用混合平面模型传递级间参数，运用 Fluent 软件对不同静动叶片数目比下的烟气涡轮多叶片通道流场进行了数值计算，得到了温度、压力、出口速度和马赫数等参数的变化规律，绘制了不同静动叶片数目比下各种参数的体积加权平均 XY 图，并通过数值分析确定了静动叶片最佳数目比为50∶74，最佳静叶安装角为35°。结果表明：叶片数目增减和静叶安装角的变化对烟气涡轮整体性能的影响须考虑多种因素，并不能以单一参数的变化来决定最佳叶片数目和静叶安装角。该结论可为烟气涡轮现有装备的科学管理和技术改进提供理论依据。
기우정상가설，이용혼합평면모형전체급간삼수，운용 Fluent 연건대불동정동협편수목비하적연기와륜다협편통도류장진행료수치계산，득도료온도、압력、출구속도화마혁수등삼수적변화규률，회제료불동정동협편수목비하각충삼수적체적가권평균 XY 도，병통과수치분석학정료정동협편최가수목비위50∶74，최가정협안장각위35°。결과표명：협편수목증감화정협안장각적변화대연기와륜정체성능적영향수고필다충인소，병불능이단일삼수적변화래결정최가협편수목화정협안장각。해결론가위연기와륜현유장비적과학관리화기술개진제공이론의거。
According to the assumption of steady flow and the passing stage parameters of the hybrid planar model,the Fluent software is used for the numerical calculation of the flow field of the gas tur-bine multi-blade channel with different static and dynamic blade ratio to get the variational rules of temperature,pressure,export speed and Mach Number for drawing the volume-weighted average X-Y graph.Numerical analysis shows that the best static and dynamic blade ratio is 50∶74 and the best static blade setting angle is 35°.The research results show that the influence of the changes in the number of blades and in the setting angle of the static blade on the total performance of the exhaust gas turbine involves many factors.And these findings can provide a theoretical basis for the scientific management and technical improvement of the existing gas turbines.