A Study in Flow Characteristics of Liquid Falling Film in Spiral Tubes. Tikrit Journal of Engineering Sciences, [S. l.], v. 14, n. 2, p. 86–101, 2007. DOI: 10.25130/tjes.14.2.05. Disponível em: https://tj-es.com/ojs/index.php/tjes/article/view/681.. Acesso em: 10 sep. 2026.