Computational investigation on heat transfer augmentation of a circular tube with novel hybrid ribsSuvanjan Bhattacharyya, Devendra Kumar Vishwakarma, Sanghati Roy, Kunal Dey, Ali Cemal Benim, Rachid Bennacer, Akshoy Ranjan Paul and Z. HuanE3S Web Conf., 321 (2021) 04012DOI: https://doi.org/10.1051/e3sconf/202132104012