The noise design of power plants is one of the most important items from the perspective of environmental regulations. The main noise source in a plant is fluid equipment, so the prediction and reduction of flow-induced sound is important. Precise flow analysis and sound wave propagation analysis are necessary for the prediction of flow-induced sound. We are developing aeroacoustic analysis technology that utilizes the Lattice Boltzmann Method (LBM), which has been rapidly developed as a large-scale fluid analysis technique in recent years, and we are promoting the realization of low noise product design through the verification of the noise prediction accuracy of axial fans using this analysis technique.
