Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Print: 2150-766X
ISSN Online: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v4.i1-6.980
pages 1062-1071

EVALUATION OF THERMOCHEMICAL EROSION OF THE SOLID PROPELLANT ROCKET GRAPHITE NOZZLE THROATS BY INTEGRAL BOUNDARY LAYER TECHNIQUE

Huseyin Vural
Middle East Technical University Mechanical Engineering, Ankara-Turkey
Mehmet Ali Ak
TUBITAK Defence Industries Research and Development Institute, Ankara-Turkey

ABSTRACT

An aerothermochemical model for the graphite nozzle erosion of the rocket motors was developed. The theoretical modeling of the problem is similar to the approach of Kuo and Keswani and the solution technique differs in modeling of the boundary layer over the nozzle. In this study, the integral formulation and solution of the boundary layer equations for highly accelerating flow in rocket nozzles derived by D.R. Bartz was used in the throat erosion calculations. The integral energy equation was modified by including heterogeneous wall reactions. It was assumed that the mass transfer Stanton number is equal to heat transfer Stanton number and diffusion controlled erosion was calculated accordingly. Predicted results showed good agreement with Geisler's experimental data and the theoretical predictions made by Kuo and Keswani. The integral method used in this study is found to be yielding the results faster than the differential method.


Articles with similar content:

Numerical modelling of convective diffusion in three-component gas mixtures
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2015, issue
V. N. Kosov, A.P. Kizbayev, Olga V. Fedorenko, Dauren B. Zhakebayev
ESTIMATION OF HEAT TRANSFER VARIATION AT SOLID PROPELLANT ROCKET NOZZLE
ICHMT DIGITAL LIBRARY ONLINE, Vol.8, 1996, issue
Mehmet Ali Ak, Huseyin Vural
HEAT TRANSFER OF THE TRANSONIC AIR FLOW IN A NOZZLE
International Heat Transfer Conference 6, Vol.5, 1978, issue
Naotsugu Isshiki, Yasuo Kurosaki, Takao Kashiwagi
Unsteady/Steady Natural Convection Flow of Reactive Viscous Fluid in a Vertical Annulus
International Journal of Fluid Mechanics Research, Vol.39, 2012, issue 4
Ahmad K. Samaila, Abiodun O. Ajibade, Basant K. Jha
PREDICTION AND MEASUREMENT OF VELOCITY AND TEMPERATURE PROFILES IN TURBULENT BOUNDARY LAYERS
International Heat Transfer Conference 4, Vol.7, 1970, issue
A. P. Hatton , J. E. Byrne