压气机中介机匣三点NURBS曲线参数化方法

• 作 者: 邓小明 高丽敏 冯旭栋 刘波
• 机 构: 西北工业大学动力与能源学院,中国燃气涡轮研究院,
• 出 处: 工程热物理学报
• 发表日期: 2014年07期
• 关键词: compressor intermediate duct initial design parameterized method

研究快速高效的压气机中介机匣参数化设计方法,以便在较大求解域内确定具有良好气动性能的初始几何,从而为三维数值优化提供参考。结果表明,利用三点NURBS曲线参数化方法进行中介机匣二维初始设计,流道端壁型线同三维优化结果吻合较好,能够准确预测中介机匣流道损失。

The fast and efficient design method of compressor casing design is studied to determine the initial geometry with good aerodynamic performance in a large solution domain so as to provide reference for three-dimensional numerical optimization. The results show that the three-point NURBS curve parameterization method is applied to the two-dimensional initial design of the intermediary casing. The endwall shape of the runner is in good agreement with the three-dimensional optimization results, which can accurately predict the loss of the flow passage of the intermediary casing.