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Selected examples of the heart valve designs used in this work. (a) x1 = 0.05 cm, x2 = 0.1 cm, and x3 = 0.8 cm. (b) x1 = 0.45 cm, x2 = 0.1 cm, and x3 = 0.8 cm. (c) x1 = 0.05 cm, x2 = 0.5 cm, and x3 = 0.8 cm. (d) x1 = 0.05 cm, x2 = 0.1 cm, and x3 = 1.4 cm.
