Thermohydraulic Efficiency of Complanar Cooling Circuits for Liquid-Propellant Engine Chambers

Authors: Aleksandrenkov V.P. Published: 15.04.2015
Published in issue: #2(101)/2015  

DOI: 10.18698/0236-3941-2015-2-44-56

Category: Aviation and Rocket-Space Engineering | Chapter: Thermal, Electric Jet Engines, and Power Plants of Aircrafts  
Keywords: circular complanar channel, cross finning, efficiency, finning parameters, convective heat transfer intensification, maximal heat removal, thermal hydraulic characteristics

The paper considers the coplanar circuits (with cross finning) used for cooling liquid rocket engines by means of the maximal heat removal criterion. The available experimental data on the convective component of heat loss are used to perform computational and analytical analysis of the influence of both thermal hydraulic flow characteristics and finning parameters on their efficiency. The possibility ofusing the proposed methodology for evaluating the heat transfer efficiency in the conventional finned circuits with regard to the coplanar flow peculiarities is demonstrated. The domains of finning parameters are defined with a significantly higher (2-4 times) efficiency in comparison with the conventional finning of the cooling channels.


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