In this contribution we present a set of numerical simulations to describe and validate a framework for the simulation of mixing, combustion and wall heat transfer process in rocket-like conditions. Such framework is based on unsteady Reynolds averaged Navier Stokes (URANS) approach where turbulent combustion modeling is tackled by means of a non-adiabatic flamelet-based method. The latter provides a detailed chemical description of a non-premixed flame structure at a reasonable computational cost and allows for the inclusion of pressure-dependent effects. As a result the proposed framework is both amenable to low and high Mach number flows. Two-dimensional results show good agreement in terms of pressure and heat flux along the chamber wall compared with experiments. Moreover, preliminary result of the proposed framework envisaged in a Large Eddy Simulation (LES) context are presented.
A flamelet-based numerical framework for the simulation of low-to-high mach number flows in lre / Indelicato, G.; Vona, F.; Remiddi, A.; Lapenna, P. E.; Creta, F.. - (2020), pp. 1-11. (Intervento presentato al convegno AIAA Propulsion and Energy 2020 Forum tenutosi a Virtual, Online) [10.2514/6.2020-3822].
A flamelet-based numerical framework for the simulation of low-to-high mach number flows in lre
Indelicato G.;Remiddi A.;Lapenna P. E.;Creta F.
2020
Abstract
In this contribution we present a set of numerical simulations to describe and validate a framework for the simulation of mixing, combustion and wall heat transfer process in rocket-like conditions. Such framework is based on unsteady Reynolds averaged Navier Stokes (URANS) approach where turbulent combustion modeling is tackled by means of a non-adiabatic flamelet-based method. The latter provides a detailed chemical description of a non-premixed flame structure at a reasonable computational cost and allows for the inclusion of pressure-dependent effects. As a result the proposed framework is both amenable to low and high Mach number flows. Two-dimensional results show good agreement in terms of pressure and heat flux along the chamber wall compared with experiments. Moreover, preliminary result of the proposed framework envisaged in a Large Eddy Simulation (LES) context are presented.File | Dimensione | Formato | |
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Indelicato_ A flamelet-based_2020.pdf
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