Further Assessment of Turbulent Inflow Boundary Conditions for Rocket Motor Internal Flows

2014 ◽  
Author(s):  
David R. Gonzalez ◽  
Mark J. Lewis
Keyword(s):  
Boundary Conditions ◽  
Rocket Motor ◽  
Internal Flows ◽  
Turbulent Inflow

Particle Tracking in Combustion Chamber of Solid Rocket Motor

2001 ◽  
Author(s):  
Yumin Xiao ◽  
R. S. Amano ◽  
Timin Cai ◽  
Jiang Li ◽  
Guoqiang He
Keyword(s):  
Boundary Conditions ◽  
Combustion Chamber ◽  
High Speed ◽  
Rocket Motor ◽  
Surface Velocity ◽  
Surface Boundary ◽  
Solid Rocket Motor ◽  
Two Phase ◽  
Solid Rocket ◽  
Propellant Surface

Abstract It has been a challenge to investigate how to trace particles in a solid rocket motor (SRM) using aluminized composite solid propellant and submerged nozzle. In using CFD simulations, the boundary conditions for the ejecting particles constrain their trajectories, hence these affect the two-phase flow calculations, and thus significantly affect the evaluation of the slag accumulation. The RTR (X-ray Real-time Radiography) technique is a new method to detect the particles in a firing SRM. A method was developed to simulate the particle ejection from the propellant surface. The moving trajectories of metal particles in a firing combustion chamber were measured by using the RTR high-speed motion analyzer. Numerical simulations with different propellant-surface boundary conditions were performed to calculate particle trajectories. Through this study an appropriate surface velocity condition on the propellant surface was discovered. The method developed here can be used for the future CRM research.

scholarly journals Overview of Turbulent Inflow Boundary Conditions for Large-Eddy Simulations

AIAA Journal ◽  
2018 ◽  
Vol 56 (4) ◽  
pp. 1317-1334 ◽  
Author(s):  
Nitin S. Dhamankar ◽  
Gregory A. Blaisdell ◽  
Anastasios S. Lyrintzis
Keyword(s):  
Boundary Conditions ◽  
Large Eddy Simulations ◽  
Turbulent Inflow ◽  
Large Eddy

Mathematical Formulation of 3D Non-Reflecting Boundary Conditions for Hyperbolic Equations for Internal Flows in Thermal Engines

2007 ◽  
Author(s):  
A. Fatsis ◽  
Ch. Tsitouras ◽  
A. Panoutsopoulou ◽  
N. Vlachakis ◽  
Theodore E. Simos ◽  
...  
Keyword(s):  
Boundary Conditions ◽  
Hyperbolic Equations ◽  
Mathematical Formulation ◽  
Internal Flows
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