<p>Solar desalination system has great promise for today's towns situated on icebergs alone, in the desert, or near the ocean. There is no other system that can be recognised as a supply of water for the people who live there, and every day, over a thousand literary case studies are discovered. In order to forecast the behaviour of heat, mass, and momentum transfer, computational fluid dynamics (CFD) is a simulation method that makes use of applied and computational mathematics for fluid flow regime modelling. In recent years, CFD simulations have demonstrated accuracy levels within a deviation of less than 5% when compared to experimental results Thus, this paper's primary goal is to review the amount of research publications that have used the CFD Technique and this strategy in different solar still designs. This review focuses on CFD and covers how to use the Convergence equation, how to construct different types of contour plots and graphs using convergence post-processing, and how to apply Mesh Type, Discretization technique, and Nodal analysis for various Solar still designs and boundary conditions. Learned how to compare the numerical value with the experimental value that was also described through this review. Anyone conducting research with solar stills and CFD analysis in this publication will find this review to be very helpful. Future research can further enhance solar still performance by integrating artificial intelligence (AI)-driven optimization techniques and exploring novel materials for improved efficiency. Additionally, extending CFD analysis to hybrid desalination systems could provide valuable insights for large-scale water production applications.</p> Graphical Abstract <p></p>