精品文档---下载后可任意编辑HAN 基液体推动剂高压燃烧特性的实验讨论与数值模拟的开题报告Title: Experimental Study and Numerical Simulation of High-Pressure Combustion Characteristic of HAN-Based Liquid Propellant Introduction: HAN-based liquid propellant is an important type of green propellants which has attracted significant attention due to its high specific impulse and environmental compatibility. However, its combustion characteristics, especially under high-pressure conditions, need to be further investigated.Objectives:The objectives of this study are to conduct experimental investigation and numerical simulation on the high-pressure combustion characteristic of HAN-based liquid propellant, and to provide insights into its combustion mechanism and optimization of its performance.Methods:The experimental study includes the measurement of the burning rate and ignition delay time under various initial pressure conditions. A high-pressure combustion chamber will be used to simulate the combustion process in a real rocket engine. High-speed photography and pressure transducers will be utilized to capture the combustion process and pressure evolution.The numerical simulation will be conducted using a commercial CFD software, ANSYS Fluent. The combustion model will be based on the jet stirred reactor model, and the turbulence model will be the Reynolds-averaged Navier-Stokes (RANS) k-epsilon model. The simulated results will be compared with the experimental data to validate the model.Expected Results:This study will provide a comprehensive understanding of the high-pressure combustion characteristic of HAN-based liquid propellant. The experimental data and numerical simulation results will reveal the combustion mechanism, and 精品文档---下载后可任意编辑provide guidance for the optimization of the propellant's performance.
