Testing of smoothed particle hydrodynamics method for minor loss coefficient in three-dimensional water flow in circular vertical pipe contractionMuhammad Irham Sya'bani, RR Dwinanti Rika Marthanty, Herr Soeryantono and Jessica SjahMATEC Web Conf., 270 (2019) 04014DOI: https://doi.org/10.1051/matecconf/201927004014