一种展向压力可控的高速三维内流示踪粒子注入方法
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA ACAD OF AEROSPACE AERODYNAMICS
- Filing Date
- 2024-12-24
- Publication Date
- 2026-07-17
AI Technical Summary
Under high-speed inflow conditions, tracer particles are difficult to uniformly enter the inflow model, especially when the angle of attack and sideslip angle are variable, the tracer particles in the leeward area are sparse, which leads to inaccurate measurement of the inflow velocity field.
A three-dimensional internal flow tracer particle injection device with controllable spanwise pressure is adopted. Through N pressure regulating valves, opening valves and power devices, the pressure inside the particle container is controlled to achieve uniform seeding of tracer particles in the internal flow model. The flow field pressure distribution is calculated by numerical simulation, and the pressure valves are adjusted to ensure uniform particle injection.
This method achieves three-dimensional uniform seeding of tracer particles in the internal flow model, improving the accuracy and precision of internal flow velocity field measurement and avoiding interference from particle injection on the flow field.
Smart Images
Figure CN119756759B_ABST