研究RESEARCH研究专题RESEARCH TOPIC

畸变来流与风扇系统Distorted Inflow and Fan Systems

2026-09-10作者 · 气动声学与湍流实验室Aeroacoustics and Turbulence Laboratory原始页面Original page ↗

边界层吸入非轴对称静子非定常损失Boundary layer ingestionNon-axisymmetric statorsUnsteady losses

科学问题QUESTION

非均匀进气如何改变风扇内部流动与损失，静子构型又如何影响系统气动性能？

How does inlet distortion affect fan flow and losses, and how does stator configuration influence system performance?

研究方法METHOD

结合 URANS 与 LES 的流场对比，以及非轴对称静子对风扇—压气机系统的研究，连接畸变来源、局部流动与部件性能。

Combine URANS–LES flow comparisons with research on non-axisymmetric stators to connect inlet distortion, local flow and component performance.

验证证据EVIDENCE

Flow 论文通过统一条件下的 URANS/LES 对比定位非定常损失；AST 论文研究非轴对称静子的系统气动影响。

The Flow study compares URANS and LES to locate unsteady losses; the AST study examines system-level aerodynamic effects of a non-axisymmetric stator.

METHOD & CONTEXT

我们如何研究How we investigate

在统一几何与边界条件下对比 URANS 与 LES，追踪畸变扇区、涡结构及转静子通道的损失来源。

研究非轴对称静子构型与风扇—压气机系统气动性能之间的联系，为非均匀流动环境中的部件匹配提供研究依据。

URANS and LES are compared under common geometry and boundary conditions to examine distorted sectors, vortical structures and losses in rotor and stator passages.

The study examines how a non-axisymmetric stator affects aerodynamic performance in a fan–compressor system, informing component matching in nonuniform flow.

VISUAL EVIDENCE

计算与分析图像Computational evidence

图1 BLI进气道—风扇一体化数值模型及边界条件。来源：气动声学与湍流实验室公众号。 / BLI intake–fan numerical model and boundary conditions (source Fig. 1). — 01图1 BLI进气道—风扇一体化数值模型及边界条件。来源：气动声学与湍流实验室公众号。BLI intake–fan numerical model and boundary conditions (source Fig. 1).

图4 进气道—风扇内部涡结构对比。来源：气动声学与湍流实验室公众号。 / Comparison of vortical structures inside the intake and fan (source Fig. 4). — 02图4 进气道—风扇内部涡结构对比。来源：气动声学与湍流实验室公众号。Comparison of vortical structures inside the intake and fan (source Fig. 4).