燃气轮机火焰筒肋化壁面逆流气膜冷却的数值模拟

doi:10.12068/j.issn.1005-3026.2018.10.007

东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (10): 1402-1407.DOI: 10.12068/j.issn.1005-3026.2018.10.007

燃气轮机火焰筒肋化壁面逆流气膜冷却的数值模拟

李宝宽¹，张文博²，王喜春¹

(1. 东北大学冶金学院，辽宁沈阳110819; 2. 沈阳航空航天大学能源与环境学院，辽宁沈阳110136)

收稿日期:2017-06-30 修回日期:2017-06-30 出版日期:2018-10-15 发布日期:2018-09-28
通讯作者: 李宝宽
作者简介:李宝宽(1963-)，男，辽宁辽阳人，东北大学教授，博士生导师.冯明杰(1971-)，男，河南禹州人，东北大学副教授; 王恩刚(1962-)，男，辽宁沈阳人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(U1508214)国家自然科学基金资助项目(51171041).

Numerical Simulation for Counterflow Convection-Film Cooling ofGas Turbine Combustor Liner with Ribbed Wall

LI Bao-kuan¹， ZHANG Wen-bo²， WANG Xi-chun¹

1. School of Metallurgy， Northeastern University， Shenyang 110819， China; 2. College of Energy and Environment， Shenyang Aerospace University， Shenyang 110136， China.

Received:2017-06-30 Revised:2017-06-30 Online:2018-10-15 Published:2018-09-28
Contact: LI Bao-kuan
About author:-
Supported by:
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摘要/Abstract

摘要： 针对燃气轮机火焰筒肋化壁面逆流气膜冷却的问题，建立了火焰筒内壁面冷却传热的流固耦合数学模型.考虑湍流切应力的传播，近壁利用k-ω模型的鲁棒性，捕捉黏性底层的流动.主流区域利用k-ε模型避免k-ω模型对入口湍流参数过于敏感的劣势.SST k-ω模型是用混合函数将k-ω模型和k-ε模型结合互补所取得的更适合本问题的湍流模型.数值分析结果清晰展示了计算域流体的流场、温度场及火焰筒肋化壁面的温度场分布，并与文献中的实验结果符合良好.

关键词: 燃气轮机, 肋化壁面, 气膜冷却, 流固耦合, 数值仿真

Abstract: To study the cooling structure of gas turbine with counterflow convection-film for combustor liner， a fluid-solid coupling mathematical model of the cooling heat transfer of the combustor liner was established. Considering the propagation of Reynolds stress， the robustness of the k-ω model was used to capture the flow of viscous underlying layer in the near wall. The k-ε model was used in the mainstream areas to avoid the k-ω model being too sensitive to inlet turbulence parameters. The SST k-ω model was a turbulence model which was more suitable for this study by using a mixture function combined with the k-ω and the k-ε models. The results provided not only the distribution of flow and temperature fields in the computational domain fluid， but also the temperature distribution of the ribbed walls of the combustor liner. Moreover， these simulation results well agreed with the experimental ones.

Key words: gas turbine, ribbed wall, film cooling, fluid /solid coupling, numerical simulation

中图分类号:

TK472

李宝宽，张文博，王喜春. 燃气轮机火焰筒肋化壁面逆流气膜冷却的数值模拟[J]. 东北大学学报:自然科学版, 2018, 39(10): 1402-1407.

LI Bao-kuan， ZHANG Wen-bo， WANG Xi-chun. Numerical Simulation for Counterflow Convection-Film Cooling ofGas Turbine Combustor Liner with Ribbed Wall[J]. Journal of Northeastern University Natural Science, 2018, 39(10): 1402-1407.

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燃气轮机火焰筒肋化壁面逆流气膜冷却的数值模拟

Numerical Simulation for Counterflow Convection-Film Cooling ofGas Turbine Combustor Liner with Ribbed Wall

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