Reference 87 is:
87. K. Takizawa, T.E. Tezduyar, J. Boben, N. Kostov, C. Boswell, and A. Buscher, “Fluid–structure interaction modeling of clusters of spacecraft parachutes with modified geometric porosity”, Computational Mechanics, 52 (2013) 1351–1364
From the same paper as the previous 2 images.
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