| Journal: | Brazilian journal of chemical engineering |
| Database: | PERIÓDICA |
| System number: | 000308768 |
| ISSN: | 0104-6632 |
| Authors: | Viana, M.J.G1 Nascimento, U.C.S Quaresma, J.N.N Macedo, E.N |
| Institutions: | 1Universidade Federal do Para, Centro de Tecnologia, Belem, Para. Brasil |
| Year: | 2001 |
| Season: | Dic |
| Volumen: | 18 |
| Number: | 4 |
| Pages: | 337-358 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Aplicado, descriptivo |
| English abstract | Related momentum and energy equations describing the heat and fluid flow of Herschel-Bulkley fluids within concentric annular ducts are analytically solved using the classical integral transform technique, which permits accurate determination of parameters of practical interest in engineering such as friction factors and Nusselt numbers for the duct length. In analyzing the problem, thermally developing flow is assumed and the duct walls are subjected to boundary conditions of first kind. Results are computed for the velocity and temperature fields as well as for the parameters cited above with different power-law indices, yield numbers and aspect ratios. Comparisons are also made with previous work available in the literature, providing direct validation of the results and showing that they are consistent |
| Disciplines: | Química |
| Keyword: | Ingeniería química, Materiales viscoplásticos, Ductos anulares concéntricos, Técnica de transformada integral, Fluidos de Herschel-Bulkley |
| Keyword: | Chemistry, Chemical engineering, Viscoplastic materials, Concentric annular ducts, Integral transform technique, Herschel-Bulkley fluids |
| Full text: | Texto completo (Ver HTML) |
