Abstract
Based on the calculation platform of OpenFOAM,the numerical simulation of the combustion fluctuation of AP/HTPB composite propellants' micro-flame in engine oscillation environment is carried out.Because the traditional sandwich model does not consider the influence of adjacent flames,the multi-layer sandwich configuration is adopted in this paper.In the case of pressure of 5.7 MPa,oscillation frequency of 323 Hz,amplitude of pressure oscillation 0.2 MPa,mass ratio αAP/HTPB=7/3,the numerical simulation and analysis are carried out.The results show that the fluctuation characteristics of the AP/HTPB sandwich model flame can be obtained based on the numerical simulation method established by OpenFOAM,including the flame height,the flame swing angle and the thermal feedback of the propellant surface.Comparative analysis shows that the adjacent flames will have an impact on the flame fluctuation characteristics,and multi-layer sandwich model is more reasonable for the description of propellant microscopic flame.
| Translated title of the contribution | Study on flame fluctuation characteristics of multi-layer sandwichmodel in oscillating environment |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 145-150 |
| Number of pages | 6 |
| Journal | Guti Huojian Jishu/Journal of Solid Rocket Technology |
| Volume | 41 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1 Apr 2018 |