Numerical study of the influence of internal structural design on the thermal performance of hollow brick configurations based on HCB8-brickIbtissam Lamaamar, Khadija Choukairy, Oumayma Babaharra, Kaoutar Khallaki and Hafid El KharazEPJ Web Conf., 371 (2026) 01018DOI: https://doi.org/10.1051/epjconf/202637101018