航天推进技术研究院主办
[1]宋大亮,周立新,陈建华,等.离心式喷嘴全流场数值模拟[J].火箭推进,2011,37(05):36-40.
SONG Da-liang,ZHOU Li-xin,CHEN Jian-hua,et al.Numerical simulation of full flowfield of centrifugal nozzle[J].Journal of Rocket Propulsion,2011,37(05):36-40.
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SONG Da-liang,ZHOU Li-xin,CHEN Jian-hua,et al.Numerical simulation of full flowfield of centrifugal nozzle[J].Journal of Rocket Propulsion,2011,37(05):36-40.
离心式喷嘴全流场数值模拟
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
37
期数:
2011年05期
页码:
36-40
栏目:
研究与设计
出版日期:
2011-10-15
- Title:
- Numerical simulation of full flowfield of centrifugal nozzle
- 文章编号:
- 1672-9374(2011)05-0036-05
- Keywords:
- VOF method; numerical simulation; centrifugal nozzle; two-phase flow
- 分类号:
- V434-34
- 文献标志码:
- A
- 摘要:
- 将离心式喷嘴流场数值模拟由内流场扩展至外流场，将喷嘴出口的一段区域纳入计算域，探索用数值模拟方法研究全流场的流动特性并在此基础上对雾化特性进行分析。计算结果给出全流场的液膜形状以及气涡与液膜共存的流场结构，直接给出雾化锥角。采用VOF方法捕捉气液界面，湍流模型选择RNG双方程模型，对容积分数方程选择积分平均型TVD格式求解，建立离心式喷嘴全流场数学模型，编写数值模拟程序，运用该模型对离心式喷嘴进行全流场数值模拟研究。数值模拟结果与实验值符合较好，验证了模型和算法的有效性。
- Abstract:
- The gas and liquid flow field inside a centrifugal nozzle and in an area near the exit of the nozzle was simulated based on a CFD code developed for numerical simulation of the whole flow field of centrifugal nozzle. The geometry of the liquid film formed in the nozzle and its development after the liquid film emanating from the nozzle was predicted. The spray cone angle was directly obtained on the basis of numerical simulation. The gas-liquid interface was captured by using VOF method. The turbulence effect of the gas and liquid flow was simulated with RNG k-ε two-equation model. TVD scheme was incorporated into the VOF method during the solution of the fluid volume-fraction equations. The computational results agree with the experimental measurements. The computational model and the numerical algorithm are validated.
参考文献/References:
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备注/Memo
收稿日期：2010-12-14；修回日期：2011-01-20
基金项目：总装备部预研项目
作者简介：宋大亮（1984—），男，硕士，研究领域为推力室设计
更新日期/Last Update:
1900-01-01