Numerical simulation of fluid flow in shell side of segmental baffle heat exchanger and structure optimization

A three dimensional numerical model based on software FLUENT using porous media and distributed resistance method to simulate fluid field in shell side of single segment baffle heat exchanger.The three dimensional model was validated by comparison the computed data with the experimental data.Based on the result,a new method was put forward to decrease the pressure drop of shell-side and to eliminate the dead spaces of heat transfer.Through numerical simulation,it can be concluded that the improved fluid flow in the shell side of the heat exchanger not only has low pressure drop but also has excellent field synergy,at the same time the tube bundle's ability of resisting fluid induced vibration was improved.