To improve the environmental performance of our products, Mitsubishi Heavy Industries, Ltd. (MHI) has taken on the challenge of reducing the noise from equipment. As part of these efforts, we are developing large-scale aeroacoustic noise analysis technology that enables the low-noise design of fluid equipment. Aeroacoustic noise analysis requires precise flow analysis and sound wave propagation analysis. From this perspective, the Lattice Boltzmann Method (LBM) has been applied as a large-scale fluid analysis technology that has been rapidly advancing in recent years and is of high potential. This report summarizes this analysis technology and presents the verification analyses of an aircraft airfoil during take-off/landing and axial fan noise.
