Numerical solution of moving boundary problem for deposition process in solid fuel gas generator

11th International Conference on "Mesh methods for boundary-value problems and applications"

Volokhov, V.M.^1 ; Dorofeenko, S.O.^1 ; Sharov, M.S.^1 ; Toktaliev, P.D.^1

IPCP RAS, Chernogolovka, Russia^1

关键词: Deposition process;    Fuel preparation;    High speed vehicles;    Impulse conservation;    Moving boundary problems;    Multicomponent multiphase;    Numerical solution;    Particle-wall interactions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/158/1/012095/pdf
DOI  :  10.1088/1757-899X/158/1/012095

来源: IOP

【 摘 要 】

Moving boundary problem in application to process of depositions formation in gas generator are considered. Gas generator, as a part of fuel preparation system of high-speed vehicle, convert solid fuel into multicomponent multiphase mixture, which further burned down in combustion chamber. Mathematical model of two-phase "gas-solid particles" flow, including Navier-Stokes equations for turbulent flow in gas generator and mass, impulse conservations laws for elementary depositions layer are proposed. Verification of proposed mathematical model for depositions mass in gas generator conditions is done. Further possible improvements of proposed model, based on more detail accounting of particle-wall interaction and wall's surface adhesion properties are analyzed.