Chvorinov's rule

English Etymology en metallurgy Named after Czech engineer Nicolas Chvorinov, who described the rule in 1940. Proper noun en metallurgy An empirical formula used to calculate the solidification time of cast metal. The rule states that , where is the solidification time, is a constant whose value depends on the material properties of the cast metal, is the volume of the cast, is the surface area of the cast that contacts the mold, and is a constant that is usually around 1.5 to 2. en Seung Uk Mun Gun Oh Jun Hwan Kim Sang-Gyu Park Byung Mook Weon Solidifcation-induced nonuniformity in U–Zr–RE metallic nuclear fuel rods w:Scientific Reports London w:Nature Portfolio 21 August 2024 14 6 10.1038/s41598-024-69935-x 2045-2322 732869387 Using Chvorinov's rule, we estimate the solidification time () of the liquid U metal, which can be determined by the volume of the molten alloy V (~ 4856 mm3), the surface area of the molten alloy A (~ 4311 mm2), the shape constant B [s/mm2], and the scaling parameter n (typically, ), as follows: Further reading en eponyms