Modelling of Motion of a Volvox Colony using Many-Body System and Its Qualitative Comparison with Observations

Autor: Septian Ulan Dini, Sevi Nurafni, Achmad Zacky Fairuza, Intan Taufik
Rok vydání: 2022
Předmět:
Zdroj: Journal of Physics: Conference Series. 2243:012080
ISSN: 1742-6596
1742-6588
Popis: Approximately 500-60,000 volvox cells constructed a colony with a spherical or elliptical hollow form. Each cell can use its flagella to move. For a colony of hundred cells to perform a direct motion, there must be a coordination of the flagella. In this work, we assume that the cells already form the spherical colony and can perform some simple motion types, i.e., translational (TRAN), roll (ROLL), spin (SPIN), and superposition of the motions, and neglect detail of each flagellum. It is possible to map each cell in the colony using angular positions with a constant radius R and different θ _i and ϕ_i, where i = 1, 2,…, N with N is the number of cells constructing a colony. The center of the colony is R = (x, y, z). The TRAN mode can be obtained, wherex(t) = x(0) + υxt, y(t) = y(0) + υyt, z(t) = z(0) +υzt, ROLLmode with θ(t) = ω(0) + ωθt and SPIN with ϕ(t) = ω(0) + ωϕt. Through the available observation video, the model of volvox colony motion is also shown to have a qualitative agreement.
Databáze: OpenAIRE