Numerical approaches in idealizing mass of fluid in tank for ship vibration analysisJung Hoon Byeon, Hyun Jin Cho, Seung Jun Baek, Aditya Rio Prabowo, Dong Myung Bae and Jung Min SohnMATEC Web of Conferences, 159 (2018) 02059DOI: https://doi.org/10.1051/matecconf/201815902059