Abstract
Hydrogen gas is not only clean but also renewable. That is, it can mitigate NOx and SOx emissions and cope with the eventual depletion of fossil energy resources. Therefore, it is considered a hopeful candidate for next energy resource. On the other hand, with the recent development of an aircraft, the propulsion system is required to be lighter and lower emissions. If the combustion chamber is eliminated, combustion process is handled within turbine blade passages, and hydrogen is used as the fuel, we can satisfy these requirements. In the present study, we investigate the idea of new jet engine without combustion chamber. The computations of turbulent flow field with hydrogen-fueled combustion within turbine blade passage are performed. Reynolds-averaged Navier-Stokes equations are solved with incorporating a k-eturbulence model and a reduced chemical mechanism. Visualizing the hydrogen combustion in the passage, the possibility to realize our concept is investigated.
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