| Investigation of pressure wave behaviors in the rotational speed effects on a pressure-exchange wave rotor |
| |
| 作者姓名： | Shining CHAN Huoxing LIU Hang SONG Fengchao LI Chongwen JIANG Zhenxun GAO |
| |
| 作者单位： | 1. Aircraft & Propulsion Laboratory, Ningbo Institute of Technology, Beihang University;2. National Laboratory for Computational Fluid Dynamics, School of Aeronautic Science and Engineering, Beihang University;3. Research Institute of Aero-Engine, Beihang University;4. AVIC CAPDI Integration Equipment Co., Ltd.;5. Aero Engine Academy of China |
| |
| 基金项目： | co-supported by the National Natural Science Foundation of China (No. 51906007)；;the National Key Laboratory Foundation of China (No. 6142702190204)； |
| |
| 摘 要： | A wave rotor is suitable for compact and efficient pressure-exchange between gas flows.This work measured the circumferential pressure distribution of the rotor/stator interfaces and utilized a CFD method to simulate the unsteady pressure waves. The experimental and CFD results showed some slopes in the circumferential pressure distributions, and the slopes indicated the traces of specific unsteady pressure waves. Such traces varied regularly if the rotational speed varied within a range from-11...
|
| 收稿时间： | 12 September 2020 |
Investigation of pressure wave behaviors in the rotational speed effects on a pressure-exchange wave rotor |
| |
| Shining CHAN,Huoxing LIU,Hang SONG,Fengchao LI,Chongwen JIANG,Zhenxun GAO.Investigation of pressure wave behaviors in the rotational speed effects on a pressure-exchange wave rotor[J].Chinese Journal of Aeronautics,2022,35(5):247-259. |
| |
| Institution: | 1. Aircraft & Propulsion Laboratory, Ningbo Institute of Technology, Beihang University, Ningbo 315800, China;2. National Laboratory for Computational Fluid Dynamics, School of Aeronautic Science and Engineering, Beihang University, Beijing 100083, China;3. Research Institute of Aero-Engine, Beihang University, Beijing 100083, China;4. AVIC CAPDI Integration Equipment Co., Ltd., Beijing 102206, China;5. Aero Engine Academy of China, Beijing 101300, China |
| |
| Abstract: | A wave rotor is suitable for compact and efficient pressure-exchange between gas flows. This work measured the circumferential pressure distribution of the rotor/stator interfaces and utilized a CFD method to simulate the unsteady pressure waves. The experimental and CFD results showed some slopes in the circumferential pressure distributions, and the slopes indicated the traces of specific unsteady pressure waves. Such traces varied regularly if the rotational speed varied within a range from ?11% to +11% off the baseline value, but they were seriously disturbed if the rotational speed varied by ?45% from the baseline value. It verified that a pressure wave in a wave rotor tended to keep its pressure ratio and propagation velocity unchanged if the rotational speed varied by a small extent, and that the pressure wave could not keep its propagation patterns if the rotational speed varied by a large extent. Because of the pressure wave behaviors, the wave rotor demonstrated specific regulations of the rotational speed effects on its operational states. |
| |
| Keywords: | Experimental test Pressure exchange Pressure measurement Rotational speed Unsteady pressure wave Wave rotor |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
