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To help solve flow mal-distribution and cooling capacity utilization problems in parallel cooling channels of SCRamjet, the variable channel sectional area design is put forward. 3D modelling of the flow and heat transfer in multiple parallel channels is carried out under supercritical pressure. The flow distribution reasonability and cooling effect under different channel sectional area designs are...
A model consisting of two parallel pipes with common inlet and outlet manifolds was established and used to run simulation and experimental study on the flow rate distribution of cracked hydrocarbon fuel in parallel pipes under supercritical pressure. Both simulation and experimental results indicated that mass flow rate and fuel temperature distribution of cracked hydrocarbon fuel in parallel pipes...
The thermodynamic cycle of an endothermic hydrocarbon fuel cooled scramjet is a chemical recuperation cycle. An experimental system is built, and a series of comparisons are made at different fuel cooling conditions to investigate the influence of different factors on the chemical recuperation process of endothermic reaction of hydrocarbon fuel and the law governing the chemical recuperation process...
Recooling cycle (RCC) has been newly proposed as a new cooling method to increase fuel heat sink (cooling capacity). A testing system is established and an experimental study is conducted on the operating characteristics and performance of RCC with different flow, heat transfer and cracking conditions. Experimental results indicate that the utilization of fuel heat sink is restricted by the allowable...
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