TESTING AND MODELING LIQUEFYING FUEL COMBUSTION IN HYBRID PROPULSION

Hybrid motors are considered an alternative for space launchers due to their safety and high energetic performance. Nevertheless, classical hybrid combustors employing polymeric fuels are characterized by a low fuel regression rate resulting in low thrust levels that may not be adequate. This research presents experimental investigation and theoretical model of liquefying (para©n-based) fuels, featuring high regression rates. Themodeldevelopedincludesanadditionalfeatureandmassloss mechanism,i.e.,theliquidmelt§owingalongthegrain. Thetestresults exhibit a good correlationwith the model predictions.

[1]  M. Arif Karabeyoglu,et al.  Evaluation of the Homologous Series of Normal Alkanes as Hybrid Rocket Fuels , 2005 .

[2]  Filippo Maggi,et al.  Numerical simulation of HTPB combustion in a 2D hybrid slab combustor , 2011 .

[3]  Kenneth K. Kuo,et al.  Overview and History of Hybrid Rocket Propulsion , 2007 .

[4]  Brian J. Cantwell,et al.  Combustion of Liquefying Hybrid Propellants: Part 2, Stability of Liquid Films , 2002 .

[5]  D. Ridley,et al.  Cape Town, South Africa , 1986, Journal of clinical ultrasound : JCU.

[6]  R. P. Wilson,et al.  The combustion institute: Western States Section—1974 Spring Meeting , 1974 .

[7]  Greg Zilliac,et al.  Scale-Up Tests of High Regression Rate Paraffin-Based Hybrid Rocket Fuels , 2004 .

[8]  Grant A. Risha,et al.  Regression Rate Behavior of Hybrid Rocket Solid Fuels , 2000 .

[9]  T. Grundy,et al.  Progress in Astronautics and Aeronautics , 2001 .

[10]  Kenneth K. Kuo,et al.  Fundamentals of Hybrid Rocket Combustion and Propulsion , 2007 .

[11]  H. Seifert,et al.  Rocket Propulsion Elements , 1963 .

[12]  G. Marxman,et al.  Turbulent boundary layer combustion in the hybrid rocket , 1963 .

[13]  Kenneth K. Kuo,et al.  Characterization of Nano-Sized Energetic Particle Enhancement of Solid-Fuel Burning Rates in an X-Ray Transparent Hybrid Rocket Engine , 2004 .

[14]  Brian J. Cantwell,et al.  Combustion of Liquefying Hybrid Propellants: Part 1, General Theory , 2002 .

[15]  C. E. Wooldridge,et al.  Fundamentals of Hybrid Boundary-Layer Combustion , 1964 .

[16]  Brian J. Cantwell,et al.  DEVELOPMENT AND TESTING OF PARAFFIN-BASED HYBRID ROCKET FUELS , 2001 .

[17]  G. Marxman,et al.  Combustion in the turbulent boundary layer on a vaporizing surface , 1965 .