Journal of Technology in Aerospace Engineering

Journal of Technology in Aerospace Engineering

Numerical Simulation of Unsteady Flow and Calculation of Heat Transfer Coefficient inside the Solid Propellant Engine Shell

Document Type : Research Article

Authors
Mohsen Esfandi 1
Mohammad Kazem Moayyedi 2
1 M.Sc., Department of Mechanical Engineering, University of Qom, Qom, Iran
2 Associate Professor, Department of Mechanical Engineering, University of Qom, Qom, Iran
10.22034/jtae.2024.8.1.3
Abstract
In this study, the simulation of internal ballistics and the exhaust flow of a solid propellant engine have been investigated. The flow field considered in this problem including the cylindrical grain and the solid wall of the engine and the flow at the nozzle outlet have been studied. The governing equations are used in an axisymmetric and compressible form to model the fuel combustion in non-erosive combustion mode. In the present study, cylindrical type of grain fuel is considered, which is one of the most useful types of fuel grains in terms of simplicity in production. To obtain the results from the simulation model which are close to the real data, used UDF modules in the Fluent software to describe some specific quantities and phenomena of the problem. Finally, the results obtained from the simulation in different modes of fuel burning are examined and show the accuracy of the numerical model by entering the parameters affecting the fuel burning.
Keywords
Solid Fuel Propellants
Fuel Grain
Erosive Burning
Burning Rate
Heat Transfer
Subjects
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  • Receive Date 08 June 2022
  • Revise Date 05 June 2023
  • Accept Date 06 June 2023
  • First Publish Date 09 June 2023