HPC4E at the 1st Spanish HPC Combustion Workshop

The Barcelona Supercomputing Center held on 2nd June the 1st Spanish HPC Combustion Workshop. The event was dedicated to present the state-of-the-art in modelling and simulation techniques for combustion applications in the national context with representative research institutions. The topics went from multiphase flow calculations, combustion instabilities, alternative fuels, large-eddy simulations, numerical methods for reacting flows to advance multiphysics applications. The event honoured the participation of three invited speakers: Amable Liñán (Combustion Institute President), Laurent Y. Gicquel (Cerfacs, France) and Heinz Pitsch (RWTH Aachen, Germany). The Workshop was organised by the Spanish Supercomputing Network (Red Española de Supercomputación - RES).

EU HPC4E coordinator, José M. Cela, welcomed the participants and called upon the fuel industry to use HPC to tackle future challenges.

The agenda included also the talk by HPC4E researcher Daniel Mira (BSC), titled "High-­fidelity numerical simulations of practical combustion systems using the multiphysics code Alya". The abstract of the talk is the following one:

This work introduces the state-of-the-art on the numerical and modelling framework available in the multiphysics code Alya to simulate practical combustion systems. The numerical framework is based on the Finite Element method using low-dissipation schemes with skew-symmetric properties. The code solves for the low-Mach number approximation of the Navier-Stokes equations using both an implicit and explicit formulation. The turbulent combustion model is based on steady and unsteady flamelet models designed for partially premixed conditions and fuels characterizing autoignition and flame propagation. Results of practical examples of combustion systems with emphasis on code validation and accuracy assessment of physical models will be presented along with multiphysics applications for problems with conjugate heat transfer and fluid/solid thermal interactions.

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