03.3 - Basic Fluid Dynamics and Flow Control
EXPERIMENTAL STUDY ON MULTI-ATTITUDE OIL SUPPLY STRUCTURE
Y. Xu¹, Y.-G. lLyu¹, J.-P. Hu¹, Z. Liu¹; ¹Northwestern Polytechnical University, China
The high maneuverability of fighter jets poses new challenges to the engine lubrication system. Achieving continuous oil supply and lubrication during high maneuverability flights is essential for improving engine safety. In this paper, an experimental study on the performance of a multi attitude oil supply structure is carried out. The effects of inlet flow rate, operating attitude angle, and oil level height on the ejector capability of the oil structure were analyzed. And, the ventilation and oil gas separation performance of the oil supply structure were tested. The experimental oil flow range was 10~45L/min, the air flow range was 6~37SL/min, and the attitude angle range was -30°~30°. The results show that the injection flow rate of the multi-position oil supply structure ranges from 0.06 to 0.12L/min, the ventilation efficiency is about 90%, and the maximum oil and gas separation efficiency is 95%.