Coelho, P. J.; Duic, N.; Lemos, C.; Carvalho, M. G. Modelling of a solid fuel combustion chamber of a ramjet using a multi-block domain decomposition techique. (English) Zbl 0936.76038 Aerosp. Sci. Technol. 2, No. 2, 107-119 (1998). A computer code aimed at the simulation of physical phenomena occuring in the solid fuel combustion chamber of a ramjet is extended to accommodate multi-block grids. The mathematical model is based on the numerical solution of governing equations for mass, momentum, energy and transport equations for scalar quantities. The \(k-\varepsilon\) model and the conserved scalar/prescribed probability density function formalism are employed. Heat and mass transfer at the walls are calculated using the wall functions modified to account for porous walls. The multi-block method allows discontinuous grid lines along the interblock boundaries, and transfer of data between neighbouring blocks satisfies flux conservation. The implementation of the multi-block domain decomposition technique is demonstrated for a turbulent isothermal flow through a pipe with a sudden expansion, and for a solid fuel combustion chamber of a ramjet. MSC: 76M12 Finite volume methods applied to problems in fluid mechanics 76V05 Reaction effects in flows 76F60 \(k\)-\(\varepsilon\) modeling in turbulence 65M55 Multigrid methods; domain decomposition for initial value and initial-boundary value problems involving PDEs 80A25 Combustion Keywords:solid fuel combustion chamber; multi-block grids; probability density function; discontinuous grid lines; flux conservation; turbulent isothermal flow through a pipe PDFBibTeX XMLCite \textit{P. J. Coelho} et al., Aerosp. Sci. Technol. 2, No. 2, 107--119 (1998; Zbl 0936.76038) Full Text: DOI