Thermo-hydraulic investigation of two stepped micro pin fin heat sink having variable step sizePrabhakar Bhandari, Lalit Ranakoti, Vijay Singh Bisht, Manish Kumar Lila, Kaushal Kumar, Kapil Joshi, N.V. Ganapathi Raju, Rajeev Sobti and L. JayahariE3S Web Conf., 430 (2023) 01177DOI: https://doi.org/10.1051/e3sconf/202343001177