SARAS: A general-purpose PDE solver for fluid dynamics

We gratefully acknowledge the contributions from Gaurav Gautham, Saurav Bhattacharjee, Rishabh Sahu and Mohammad Anas during the development of SARAS. We also thank Kyle Niemeyer and the reviewers at JOSS, whose useful suggestions greatly improved the solver, with true open-source ethos. Part of our computations were performed on the Cray XC40 (Shaheen II) of KAUST supercomputing laboratory, Saudi Arabia, through Projects k1052 and k1416.