Led by eminent industrials and academic partners, the SCALABLE project (2021-2023) aims to improve the performance, scalability and energy efficiency of an industrial computational fluid dynamics (CFD) software based on a Lattice Boltzmann method (LBM) for the next generation of European exascale systems. In the context of EuroHPC, LBM is especially well suited to exploit advanced supercomputer architectures through vectorization, accelerators, and massive parallelization.