Three-dimensional transient heat transfer from a buried pipe—I. Laminar flow

✍ Scribed by Antuan Negiz; Mehmet A. Hastaoglu; Robert A. Heidemann

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 896 KB
• Volume: 48
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(93)85006-b

✦ Synopsis

A model is presented for heat transfer from a fluid in laminar flow inside a buried horizontal pipe. The top surface of the soil in which the pipe is buried is horizontal and flat and is kept at a temperature lower than the soil and the fluid temperatures. The problem is modelled as a transient three-dimensional process in cylindrical geometry. The solution is obtained using a string-intersected-boundary formulation and a three-level alternating-direction implicit finite difference method. The resulting equations were solved on a CDC Cyber 205 supercomputer. The validity of the numerical scheme has been verified by comparison with an analytical solution for a simplified problem.