Numerical simulation of convection heat transfer in a hydraulic inertia vessel spiral tube
The flow heat transfer characteristics in the spiral tube of the hydraulic inertial vessel was studied.The flow heat transfer geometry model of the hydraulic inertia vessel spiral tube was established,the fluid flow rate and temperature distribution in the tube were obtained by using Fluent to simulate the fluid flow in the tube,and the convection heat transfer capacity of the spiral tube was described by using the Nusselt number,and the flow heat transfer characteristics of the fluid in the spiral tube with different parameters were analyzed.The results showed that,the velocity field and temperature field of the helical tube were both C-shaped,indicating the occurrence of secondary flow phenomena;as the inlet and wall temperatures increased,the Nusselt number first decreased and then increased;as the Reynolds number,relative roughness,and spiral diameter of the spiral tube increased,and the diameter and pitch of the spiral tube decreased,the Nusselt number increased,and the convective heat transfer ability was enhanced.The research conclusions provide a theoretical basis for the thermodynamic design of spiral tubular hydraulic inertia vessel.
hydraulic inertial vesselnumerical simulationheat transfer characteristicsNusselt number
NETL
NSTL
万方数据
维普
