Comparison of Flow Characteristics of Different Sphere Geometries Under the Free Surface EffectM. Ozgoren, S. Dogan, A. Okbaz, M. H. Aksoy, B. Sahin and H. AkıllıEPJ Web of Conferences, 45 (2013) 01022DOI: https://doi.org/10.1051/epjconf/20134501022