Combustion efficiency is the main factor affecting the performance of solid fuel rocket scramjet. To reveal the influence of combustor configuration on performance and further improve combustion efficiency, the influence of the width-height ratio of the rectangle-section combustor on the performance of solid fuel rocket scramjet is investigated numerically in this article. Three-dimensional compressible Reynolds-averaged Navier-Stokes equations coupled with shear stress transport k–ω turbulence model are employed to simulate the aerodynamics. The Euler–Lagrange approach is used to calculate the multiphase flow. Combustion of carbon particles is modeled by the improved Moving Flame Front model. Accuracy of the present numerical model is validated by the experimental data of a rectangle-section combustor from literature. Results show that as the width-height ratio increases, the combustion efficiency increases first and then decreases. The influence of cavity and its position on the performance are also investigated. Results show that cavity can significantly improve combustion efficiency. The effect of cavity position on performance is related to the distribution of particles.
ZhaoXXiaZLiuB, et al.Numerical study on solid-fuel scramjet combustor with fuel-rich hot gas. Aerospace Sci Tech2018; 77: 25–33. DOI: 10.1016/j.ast.2017.12.024.
2.
Ben-YakarANatanBGanyA. Investigation of a solid fuel scramjet combustor. J Propul Power1998; 14: 447–455. DOI: 10.2514/2.5321.
3.
Ben-YakarAGanyA. Experimental study of a solid fuel scramjet. In: 30th AIAA/ASME/SAE/ASEE joint propulsion conference. Indianapolis, IN, 27–29 November 1994, AIAA.
4.
WittMA. Investigation into the Feasibility of Using Solid Fuel Ramjets for High Supersonic/low Hypersonic Tactical Missiles. Monterey, CA: Naval Postgraduate School, 1989.
5.
WangLWuZChiH, et al.Numerical and experimental study on the solid-fuel scramjet combustor. J Propul Power2015; 31: 685–693. DOI: 10.2514/1.B35302.
6.
ChiHWeiZWangL, et al.Numerical investigation of self-ignition characteristics of solid-fuel scramjet combustor. J Propulsion Power2015; 31: 1019–1032. DOI: 10.2514/1.B35301.
7.
PeiXWuZWeiZ, et al.Numerical investigation on internal regressing shapes of solid-fuel scramjet combustor. J Propul Power2013; 29: 1041–1051. DOI: 10.2514/1.B34681.
8.
AngusMJ. An investigation into the Performanceh Caracteristics of a Solid Fuel Scramjet Propulsion Device. Monterey, CA: Naval Postgraduate School, 1991.
9.
VaughtCWittMNetzerD, et al.Investigation of solid-fuel, dual-mode combustion ramjets. J Propul Power1992; 8: 1004–1011.
10.
ZhangXYueLHuangT, et al.Numerical investigation of mode transition and hysteresis in a cavity-based dual-mode scramjet combustor. Aerospace Sci Tech2019; 94: 105420. DOI: 10.1016/j.ast.2019.105420.
11.
LvZXiaZ-XLiuB, et al.Experimental and numerical investigation of a solid-fuel rocket scramjet combustor. J Propul Power2016; 32: 273–278. DOI: 10.2514/1.B35838.
12.
LvZXiaZ-XLiuB, et al.Preliminary experimental study on solid-fuel rocket scramjet combustor. J Zhejiang Univ Sci A2017; 18: 106–112. DOI: 10.1631/jzus.A1600489.
13.
HuMWeiZDingS, et al.Numerical investigation of a combined solid fuel scramjet combustor. Acta Astronautica2018; 148: 210–219. DOI: 10.1016/j.actaastro.2018.05.021.
14.
HeYChenYLiuD. Research on solid rocket/scramjet combined engine. In: 21st AIAA International Space Planes and Hypersonics Technologies Conference. Xiamen, China, 6–9 March, 2017.
15.
LiuYGaoYChaiZ, et al.Mixing and heat release characteristics in the combustor of solid-fuel rocket scramjet based on DES. Aerospace Sci Tech2019; 94: 105391. DOI: 10.1016/j.ast.2019.105391.
16.
YangLYonggangGLeiS, et al.Preliminary experimental study on solid rocket fuel gas scramjet. Acta Astronautica2018; 153: 146–153. DOI: 10.1016/j.actaastro.2018.10.031.
17.
LiCXiaZMaL, et al.Numerical study on the solid fuel rocket scramjet combustor with cavity. Energies2019; 12: 1235. DOI: 10.3390/en12071235.
18.
LiCZhaoXXiaZ, et al.Influence of the vortex generator on the performance of solid rocket scramjet combustor. Acta Astronautica2019; 164: 174–183. DOI: 10.1016/j.actaastro.2019.08.002.
19.
LiCXiaZMaL, et al.Experimental and numerical study of solid rocket scramjet combustor equipped with combined cavity and strut device. Acta Astronautica2019; 162: 145–154. DOI: 10.1016/j.actaastro.2019.05.057.
20.
LiuJWangNWangJ, et al.Optimizing combustion performance in a solid rocket scramjet engine. Aerospace Sci Tech2020; 99: 105560. DOI: 10.1016/j.ast.2019.105560.
21.
Ben-YakarAHansonRK. Cavity flame-holders for ignition and flame stabilization in scramjets: an overview. J Propulsion Power2001; 17: 869–877. DOI: 10.2514/2.5818.
22.
TrudgianMALandsbergWOVeeraragavanA. Experimental investigation of inclining the upstream wall of a scramjet cavity. Aerospace Sci Tech2020; 99: 105767. DOI: 10.1016/j.ast.2020.105767.
23.
LandsbergWOVeeraragavanA. Inclining and aerodynamically contouring a scramjet cavity’s upstream wall. Aerospace Sci Tech2019; 95: 105490. DOI: 10.1016/j.ast.2019.105490.
24.
HuangWWangZGYanL, et al.Variation of inlet boundary conditions on the combustion characteristics of a typical cavity-based scramjet combustor. Proc Inst Mech Eng G: J Aerospace Eng2014; 228: 627–638.
25.
HuangWJinLYanL., et al.Influence of jet-to-crossflow pressure ratio on nonreacting and reacting processes in a scramjet combustor with backward-facing steps. Int J Hydrogen Energ2014; 39: 21242–21250.
26.
ChanWYKJacobsPAMeeDJ. Suitability of the k-ω turbulence model for scramjet flowfield simulations. Int J Numer Meth Fluids2012; 70: 493–514.
27.
MorsiSAAlexanderAJ. An investigation of particle Trajectories in two-phase flow systems. J Fluid Mech1972; 55: 193–208. DOI: 10.1017/S0022112072001806.
28.
GordonSMcBrideBJ. Computer Program for Calculation of Complex Chemical Equilibrium Compositions and Applications. Part 1: Analysis. United States: NASA Center for Aerospace Information (CASI), 1994.
29.
ZhangMYuJXuX. A new flame sheet model to reflect the influence of the oxidation of CO on the combustion of a carbon particle. Combustion and Flame2005; 143: 150–158. DOI: 10.1016/j.combustflame.2005.05.010.
30.
YuJZhangMC. Experimental and modeling study on char combustion. Energy Fuels2009; 23: 2874–2885. DOI: 10.1021/ef900018b.
31.
ZhangMCYuJ. Moving Flame Front (MFF) model considering the surface reduction of cabbon paticle. Jounal Eng Thermophys2004; 25: 511–514. DOI: 10.3321/j.issn:0253-231X.2004.03.047.
32.
WangZWangYKangJ, et al.Design and experimental study on sampling in secondary combustion of solid rocket ramjet. J Solid Rocket Tech2012; 35: 769–772.
33.
HuangWWuHYangY, et al.Recent advances in the shock wave/boundary layer interaction and its control in internal and external flows. Acta Astronautica2020; 174: 103–122.
34.
ZhangJWangZSunM, et al.Effect of the backward facing step on a transverse jet in supersonic crossflow. Energies2020; 13: 4170.
