This project supports the NASA spherical diffusion flame experiments in microgravity that are being conducted on the International Space Station this year. The basic flame configuration adopted for the investigations is the spherically-symmetric diffusion flame generated by issuing a fuel mixture into a quiescent oxidizing environment. Upon ignition, the flame is initially located close to the burner surface, subsequently moving outward to reach the steady-state location. To assess the experimental results, computational simulations will be performed with detailed chemistry and transport, along with optically-thick and optically-thin radiation models, as well as with no radiative loss.
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