基于代理模型与Wilson法的低流速下水轮机翼型优化研究

申春赟; 章嘉豪; 丁成林; 王世明; 娄嘉奕

doi:10.19912/j.0254-0096.tynxb.2023-1242

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太阳能学报 ›› 2024, Vol. 45 ›› Issue (11) : 604-611. DOI: 10.19912/j.0254-0096.tynxb.2023-1242

基于代理模型与Wilson法的低流速下水轮机翼型优化研究

申春赟¹, 章嘉豪¹, 丁成林², 王世明^1,3, 娄嘉奕⁴

作者信息 +

RESEARCH ON OPTIMIZATION OF TURBINE AIRFOIL AT LOW FLOW RATE BASED ON PROXY MODEL AND WILSON METHOD

Shen Chunyun¹, Zhang Jiahao¹, Ding Chenglin², Wang Shiming^1,3, Lou Jiayi⁴

Author information +

文章历史 +

摘要

针对中国绝大部分海域平均流速低导致水轮机适用性不足的问题,在低流速下对经过代理模型优化前后的设计翼型进行数值仿真优化研究。基于儒可夫斯基定理对低速潮流能翼型构建模型进行设计,得到相对厚度12%、相对弯度2.5%的原始翼型;通过代理模型设置4阶CST方程进行参数优化。结果表明,厚度较薄、弯度较大的翼型水动力性能更优异,优化后最大厚度点前移4.58%,升阻比提升4.03%,为水轮机叶轮翼型设计在低流速研究工作提供新的思路。

Abstract

Aiming at the problem that the low average flow velocity in most sea areas of China leads to insufficient applicability of hydraulic turbines, the airfoil design before and after optimization by surrogate model is optimized in two and three dimensions at low flow velocity. Based on the Rukowski theorem, the model of low velocity tidal current energy airfoil is designed, and the original airfoil with relative thickness of 12% and relative camber of 2.5% is obtained. The 4th-order CST equation is set in the proxy model to optimize the parameters. The results show that the airfoil with thinner thickness and larger camber has better hydrodynamic performance. After optimization, the maximum thickness point moves forward by 4.58%, and the lift-drag ratio increases by 4.03%, so the blade power is more stable and excellent, which provides new ideas for the research of airfoil design of hydraulic turbine impeller at low flow velocity.

导出引用

申春赟, 章嘉豪, 丁成林, 王世明, 娄嘉奕. 基于代理模型与Wilson法的低流速下水轮机翼型优化研究[J]. 太阳能学报. 2024, 45(11): 604-611 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1242

Shen Chunyun, Zhang Jiahao, Ding Chenglin, Wang Shiming, Lou Jiayi. RESEARCH ON OPTIMIZATION OF TURBINE AIRFOIL AT LOW FLOW RATE BASED ON PROXY MODEL AND WILSON METHOD[J]. Acta Energiae Solaris Sinica. 2024, 45(11): 604-611 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1242

中图分类号： TK730.2

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