Study on the effect of geometrical and operational parameters on performance dynamics of modified rotary blades using DEM oleh Rohit Dilip Nalawade, Krishna Pratap Singh, A. K. Roul, K. N. Agrawal, Shital Sonawane, Aman Mahore, Abhishek Patel, Mohit Kumar, Pramod Shelake, Ali Salem, Ahmed Elbeltagi