使用直角梁功能的风洞柔性墙的三维变形计算
Xiuxuan Yang1, Yueyin Ma1, Guishan Wang1
1Facility Design and Instrumentation Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China.
Materials (Basel, Switzerland)
|August 14, 2025
概括
研究人员开发了新的模型,以准确预测跨声波风洞中的柔性喷嘴变形. 这提高了用于先进飞机开发的马赫数的控制.
科学领域:
- 航空航天工程 航空航天工程
- 计算流体动力学的流体动力学.
- 机械工程 机械工程
背景情况:
- 超音速和超音速风洞对于先进的飞机开发至关重要.
- 灵活的喷嘴变形是控制这些设施中马赫数的关键.
- 由于非线性和复杂的边界条件,精确建模柔性墙板变形具有挑战性.
研究的目的:
- 为灵活的墙板变形开发准确和高效的数学模型.
- 为了研究两个直角方向的变形特征.
- 为了提高跨声波风洞模拟的计算效率和准确性.
主要方法:
- 系统地研究灵活的墙壁变形特征.
- 针对小偏移变形的直角光束函数 (OBF) 模型的建议.
- 引入圆积分 (EI) 解决方案,并对大偏移变形的OBF模型进行修改.
主要成果:
- 直角光束函数 (OBF) 模型有效地描述了小偏移变形.
- 用圆积分 (EI) 解决方案修改的OBF模型准确地描述了大偏差变形.
- 实验验证证证实了模型的有效性.
结论:
- 开发的OBF模型为灵活的壁板中的大偏斜变形提供了有效的解决方案.
- 这项研究提高了跨声波风洞设计和操作的计算效率和准确性.
- 这些发现有助于推进高速空气动力学测试.
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