عنوان مقاله [English]
نویسندگان [English]چکیده [English]
In this paper, regenerative cooling in liquid propellant rocket engine has been studied and investigated. Gambit® is used for mesh generation and 3D modeling. Ansys Fluent® 15 is used for 3D numerical analysis by writing UDF code. This analysis has been done and compared for water and liquid hydrogen as liquid cooler and also liquid hydrogen, RP-1 and JP-4 as a rocket fuel. Results have shown that maximum heat flux and wall temperature occurred in nozzle throat. If used liquid hydrogen coolant instead of water we need 97% less flow to reach the desired temperature. Also by increasing thrust chamber pressure, the heat flux and wall temperature have been increased. Finally the effect of using functionally graded material (FGM) in wall temperature has been studied and investigated. If these materials used in construction of thrust chamber and due to the use of ceramics in this materials and the nature of ceramics insulator, wall temperature increased about 25 percent and the heat transfer will decrease significantly from the thrust chamber wall and therefore increase the thrust.
 D. Kuhl, J. Riccius, O. J. Haidn, Thermomechanical Analysis and Optimization Of Cryogenic Liquid Rocket Engines, Propulsion And Power, Vol. 18, No. 4, pp. 835-846, 2002.
 C. H. Marchi, F. Laroca, A. Fa´bio Carvalho da Silva, J. Nivaldo Hinckel, Numerical Solution Of Flows In Rocket Engines With Regenerative Cooling, Numerical Heat Transfer, Vol. A, No. 45, pp. 699-717, 2004.
 Z. S. Shao, Mechanical and Thermal Stresses of a Functionally Graded Circular Hollow Cylinder with Finite Length, International Journal of Pressure Vessels and Piping, No. 82, pp. 155-163, 2005.
 S. Zhifei, Z. Taotao, X. Hongjun, Exact Solution of Heterogeneous Elastic Hollow Cylinder, Composite Structure, No. 79, pp. 140-147, 2006.
 J. L. Pelletier, Senthil S. Vel, An Exact Solution for the Steady-State Thermo-Elastic Response of Functionally Graded Orthotropic Cylindrical Shells, Journal of Solids and Structures, No. 43, pp. 1131-1158, 2006.
 M. Naraghi, S. Dunn, D. Coats, Dual Regenerative Cooling Circuits For Liquid Rocket Engines, Manhattan College, Riverdale, 2006.
 A. Mollahajian, A. Asadollahi, Numerical investigation of regenerative cooling in liquid propellant rocket engines, in Iranian Aerospace Conference, Sharif University, Tehran, 2008. (in Persianفارسی )
 M. Majidi Parsa, R. Ebrahimi, H. Karimi, Numerical Modeling of Regenerative Cooling in Liquid Propellant Rocket Engines, Master Thesis, University of Khaje Nasir Toosi, Tehran, 2009. (in Persianفارسی )
 A. Ulas, E. Boysan, Numerical Analysis Of Regenerative Cooling In Liquid Propellant Rocket Engines, Aerospace Science and Technology, Vol. 24, pp. 187-197, 2011.
 Keles I., Conker C., Transient Hyperbolic Heat Conduction in Thick-Walled FGM Cylinders and Spheres with Exponentially Varying Properties, European Journal of Mechanics and Solids, No. 30, pp. 449-455, 2011.
 M. Iqbal, N. Sheikh, H. Ali, S. Khushnood, M. Arif, Comparison of Empirical Correlations for the Estimation of Conjugate Heat Transfer in a Thrust Chamber, Life Science Journal, Vol. 9, No. 4, pp. 708-716, 2012.
 T. Vinitha, S. Senthilkumar, K. Manikandan, Thermal Design And Analysis Of Regeneratively Cooled Thrust Chamber Of Cryogenic Rocket Engine, IJERT, Vol. 2, No. 6, pp. 662-669, 2013.
 W. Yang, B. Sun, Numerical Simulation of Liquidfilm and Regenerative Cooling in a Liquid Rocket, Applied Thermal Engineering, Vol. 54, pp. 460-469, 2013.
 S. K. Kim, M. Joh, H. S. Choi, T. S. Park, Multidisciplinary Simulation of a Regeneratively Cooled Thrust Chamber of Liquid Rocket Engine: Turbulent Combustion and Nozzle Flow, International Journal of Heat and Mass Transfer, Vol. 70, pp. 1066-1077, 2014.
 M. Azadi, M. Shariyat, Nonlinear Transient Heat Transfer and Thermoplastics Analysis of Thick-Walled FGM Cylinder with Temperature-Dependent Material Properties Using Hermitian Transfinite Element, Journal of Mechanical Science and Technology, Vol. 23, No. 10, pp. 2635-2644, 2009.