Convective heat transfer in the crescent-shaped lumen catheter
Conference
Zhang, HY, Ebadian, MA. (1991). Convective heat transfer in the crescent-shaped lumen catheter
. American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD, 168 1-7.
Zhang, HY, Ebadian, MA. (1991). Convective heat transfer in the crescent-shaped lumen catheter
. American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD, 168 1-7.
This paper presents a numerical investigation of convective heat transfer in the entrance region of the crescent-shaped lumen catheter. The catheter is commonly used in the biomedical field to clinically diagnose heart disease and also to treat vessel blockage in surgery. The catheter is subjected to a constant wall temperature. The solution to the discretization of the momentum and energy equations is obtained by using the numerically generated boundary fitted coordinate system. According to this method, the complex domain in the physical plane is transformed into a regular square domain in the computational plane. The control volume-based finite difference method is then used to discretize the transformed governing equations. Results for the thermal entry region flow and heat transfer are presented in graphical form. The representative curves illustrating variations of the bulk temperature and the Nusselt numbers with pertinent parameters in the entire thermal entry region are plotted. Also presented graphically is the optimized catheter design for diagnostic use in the medical industry.
