空气动力学学报2025，Vol.43Issue(4)：1-19,19.DOI:10.7638/kqdlxxb-2024.0172
超临界煤油喷注混合与燃烧过程研究进展
Research progress on supercritical kerosene injection mixing and combustion processes
摘要
Abstract
Regenerative cooling technology provides thermal protection for the combustion chamber of scramjet engines through active heat exchange.However,the kerosene,after absorbing high-temperature heat,transits from a liquid to a supercritical state,yielding a physicochemical properties.This transition leads to substantial variations in supersonic combustion processes involving supercritical kerosene injection.This paper systematically reviews research progress on the physicochemical properties of supercritical kerosene and its injection-mixing-combustion processes.First,it introduces the application of supercritical kerosene in scramjets and current challenges.To address these issues,the study analyzes the physicochemical characteristics of China's domestic RP-3 kerosene under near/supercritical conditions within regenerative cooling channels and nozzles at different temperatures.It further compares the advantages and limitations of methods such as experimental measurements,component surrogate models,modified equations of state,and machine learning for obtaining kerosene thermophysical property parameters.Subsequently,the paper reviews advancements in supercritical kerosene injection and mixing processes under various environmental conditions.Notably,existing studies primarily focus on mixing mechanisms in static environments,coaxial injection configurations,and transverse jet mixing under low-speed crossflow conditions,while research on high-speed crossflow conditions remains limited.Additionally,the impact of mixing enhancement schemes on supercritical kerosene injection-mixing processes has not been explored.Finally,the study summarizes key findings regarding supercritical kerosene combustion characteristics,proposes optimizing injection parameters to mitigate combustion oscillations induced by phase transitions,and suggests future research directions to establish coupled mixing/combustion models applicable across a wide range of velocities.关键词
超临界煤油/热物性/喷注/混合/燃烧Key words
supercritical kerosene/thermal physical properties/injection/mixing/combustion引用本文复制引用
蔡尊,刘定凯,宋昕,周曜智,王泰宇,孙明波..超临界煤油喷注混合与燃烧过程研究进展[J].空气动力学学报,2025,43(4):1-19,19.基金项目
国家自然科学基金(12272408) （12272408）
湖南省杰出青年基金项目(2024JJ2057) （2024JJ2057）
