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KIVA程序在波瓣混合器混合流场数值模拟中的应用
引用本文:谢翌.KIVA程序在波瓣混合器混合流场数值模拟中的应用[J].科学技术与工程,2010,10(33).
作者姓名:谢翌
作者单位:北京航空航天大学能源与动力工程学院,北京,100191
摘    要:本文以KIVA程序为研究平台,分别采用标准k- 湍流模型和RNG k- 湍流模型,对现代航空发动机中常用的波瓣混合器流场的进行了三维数值模拟。通过与实验测量数据对比可知,基于ALE法KIVA程序能够较好地描述波瓣混合器中流向涡系以及正交涡系形状以及涡量随流动的变化规律,与实验结果较为吻合;在湍流模型方面,标准k- 模型在流向涡以及正交涡涡量大小的描述方面较RNG k- 模型更为精确。

关 键 词:波瓣混合器  KIVA  流向涡  正交涡
收稿时间:7/1/2010 1:12:24 PM
修稿时间:7/1/2010 1:12:24 PM

Numerical Investigation on Flow Field of Lobed Mixer with KIVA
XIEYI.Numerical Investigation on Flow Field of Lobed Mixer with KIVA[J].Science Technology and Engineering,2010,10(33).
Authors:XIEYI
Institution:XIE Yi,LIU You-hong(School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing 100191,P.R.China)
Abstract:A three-dimensional numerical investigation on flow field of lobed mixer which is usually used in modern turbofan engine was carried, on the basement of KIVA program. Standard k- and RNG k- turbulent models were applied for the simulation. According to contrast between experiment results and numerical simulation results, KIVA based on ALE method is able to describe development of shape and value of streamwise vortices and spanwise vortices. Besides, standard k- turbulent model has greater accuracy than RNG k- model in describing maximum value of streamwise vortices and spanwise vortices.
Keywords:lobed mixer KIVA streamwise vortices spanwise vortices  
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