Computational fluid dynamics study on cemented paste backfill slurry: Review

•Introduction to CPB slurry and its constitutive model.•A review of CFD application in the study of rheological properties of CPB slurry.•The application of CFD in pipeline transportation of CPB slurry.•Influences of different parameters on the pipeline transportation of CPB slurry. Cemented paste backfill (CPB) slurry has demonstrated a greater advantage in the development of backfilling. This article summarises the development of various aspects of CPB slurry, including the constitutive model of CPB slurry. This summary is primarily based on the Computational fluid dynamics (CFD) application research on the rheological properties and pipe transportation, reviewing and analysing the internal and external factors influencing CPB slurry. Findings have revealed that CFD technology has significantly facilitated the study of filling technology. The research method has steadily evolved from simple single-phase fluid research to complicated multiphase fluid research. CFD technology is a promising platform for an in-depth investigation that provides a more accurate and intuitive image as CPB slurry filling research advances.