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Slag Prediction in Submerged Rocket Nozzle Through Two-Phase CFD Simulations

DSpace at IIT Bombay

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Title Slag Prediction in Submerged Rocket Nozzle Through Two-Phase CFD Simulations
 
Creator CHATURVEDI, AK
KUMAR, S
CHALCRABORTY, D
 
Subject COMPOSITE PROPELLANT
INTERNAL FLOWS
PARTICLES
MOTORS
Slag prediction
submerged rocket nozzle
CFD simulation
solid rocket motor
rocket motor performance
nozzle erosion
 
Description A computational procedure has been established to predict the slag in a practical solid rocket motor with submerged nozzle. Both single-phase and two-phase flow analyses have been performed in the rocket motor port. Three-dimensional Navier-Stokes equations along with SST turbulence model have been solved for gas-phase calculations. The effect of ejected alumina particles from the propellant geometry on the flow field has been simulated through Lagrangian tracking method. The computational methodology is firstly validated by comparing against other numerical results of rocket motors available in the literature before applying the same to predict the slag accumulation of a submerged rocket motor for strategic applications. Burn-back geometries at different instants have been simulated and parametric studies were performed to find out the effect of Al2O3 particle size. It was observed that the slag capture rate increases uniformly with Al2O3 particle size. The predicted slag accumulation data match closely with the ground test data for the range of conditions simulated in the present work.
 
Publisher DEFENCE SCIENTIFIC INFORMATION DOCUMENTATION CENTRE
 
Date 2016-01-15T10:52:19Z
2016-01-15T10:52:19Z
2015
 
Type Article
 
Identifier DEFENCE SCIENCE JOURNAL, 65(2)99-106
0011-748X
0976-464X
http://dspace.library.iitb.ac.in/jspui/handle/100/18394
 
Language en