The Study on High-Precision Flow Rate Prediction for LOX/Ethanol Gas Generator

令和4年度宇宙輸送シンポジウム（2023年1月12日-13日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)) , 相模原市, 神奈川県
Space Transportation Symposium FY2022 (January 12-13, 2023. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan
In this paper, describe a method of prediction for gas generator throttled combustion tests. In addition to the conventional method, the injector Cd was set small based on past test results. As a result, the LOX flow rate error at 70% throttle was improved from 10% to 1.3%. In addition, for flight operation, the propellant orifice diameter was examined for the feed-line resistance of the control valves.
資料番号: SA6000184027
STCP-2022-027