用2D粒子图像速度测量的帮助开发和评估旋转扩散器的简化CFD模型
Ondřej Šikula1,2, Michal Krajčík3, Pavel Zubík1
1Faculty of Civil Engineering, Brno University of Technology, Brno 601 90, Czech Republic.
ACS omega
|March 9, 2026
概括
旋转扩散器的简化计算流体动力学 (CFD) 模型降低了成本. 用SST k-ω流模型纠正的几何结构提供了准确性和效率的良好平衡.
科学领域:
- 流体动力学 流体动力学
- 计算工程 计算工程
背景情况:
- 旋转扩散器的数值建模在计算上是昂贵的.
- 简化扩散器几何学可以显著降低模拟成本.
研究的目的:
- 为旋转扩散器开发和评估简化的计算流体动力学 (CFD) 模型.
- 在简化模型中评估准确性和计算效率之间的权衡.
主要方法:
- 通过用供应开口取代旋转扩散器,开发了两个简化的CFD模型.
- 根据几何规则规定的动量,并使用详细的CFD结果来改进它们.
- 研究了雷诺兹应力和SST k-ω流模型的影响.
- 根据详细的CFD模拟和2D粒子图像速度测量 (PIV) 测量验证的模型.
主要成果:
- 使用SST k-ω流模型的修正简化几何模型在可靠性和计算效率之间取得了有利的平衡.
- 简化的模型,特别是修正的模型,对于评估旋转扩散器性能非常有价值.
- 2D PIV测量对于开发和验证简化模型至关重要,尽管3D CFD验证存在挑战.
结论:
- 简化的CFD模型可以有效地降低旋转扩散器的模拟成本.
- 用SST k-ω流模型纠正的简化几何模型为高效可靠的分析提供了实用解决方案.
- 将简化建模与PIV等实验数据相结合,可以增强模型开发和验证.
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