Aerothermal simulation of gas turbine blade cooling channel using Lattice-Boltzmann method

Luca Damiola, Maurizio Boffadossi (), Lorenzo M. Pii (), Alessandro Rossi () and Francesco Polidoro ()
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Luca Damiola: Department of Aerospace Science and Technology, Politecnico di Milano, Via La Masa 34, Milano, MI 20156, Italy
Maurizio Boffadossi: Department of Aerospace Science and Technology, Politecnico di Milano, Via La Masa 34, Milano, MI 20156, Italy
Lorenzo M. Pii: Dassault Systèmes Italia, Viale dell’Innovazione 3, Milano, MI 20126, Italy
Alessandro Rossi: Dassault Systèmes Italia, Viale dell’Innovazione 3, Milano, MI 20126, Italy
Francesco Polidoro: Dassault Systèmes Simulia Corp., 175 Wyman Street, Waltham, MA 02451, USA

International Journal of Modern Physics C (IJMPC), 2021, vol. 32, issue 06, 1-16

Abstract: Simulations using the Lattice-Boltzmann Method (LBM) are benchmarked to experimental cooling channel studies performed at the von Karman Institute for Fluid Dynamics. The experimental geometry is representative of a typical rib-turbulated cooling channel for a gas turbine rotor blade. The work aims at describing the flow physics involved, providing a better comprehension of the role of turbulence in augmenting heat transfer. Computations are found to be in agreement with the available experimental data highlighting the accuracy of LBM for aerodynamic and thermal prediction. Results are also compared to Navier–Stokes Large Eddy Simulation (LES). The reduced computational cost compared to LES-based methods offers interesting perspectives for future developments.

Keywords: Computational fluid dynamics; Lattice-Boltzmann method; turbulence promoters; blade cooling; heat transfer (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1142/S0129183121500807

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