Comparison of Pressure Losses Calculations by Approximate Methods in the Annulus (Laminar Flow). Iraqi Journal of Science, [S. l.], v. 55, n. Oil_Conf, p. 59–68, 2023. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11974.. Acesso em: 19 nov. 2024.