Scaling laws for optimal turbulent flow in tree-like networks with smooth and rough tubes and power-law fluidsAshish Garg, Himanshu Mishra, Jayati Sarkar and Sudip K. PattanayekEur. Phys. J. Plus, 140 2 (2025) 163DOI: https://doi.org/10.1140/epjp/s13360-025-06109-2