Blind predictions of laboratory measurements of vortex-induced vibrations of a tension riser by Chaplin, JR, Bearman, P, Cheng, Y, Fontaine, E, Graham, J, Herfjord, K, Huera-Huarte, F, Isherwood, M, Lambrakos, K, Larsen, C, Meneghini, JR, Moe, G, Pattenden, R, Triantafyllo, MS, Willden, R