A new type of staggered short rod support in the shell side of a longitudinal flow heat-exchanger was proposed.Numerical investigation was performed for short rod
short tube
square rod baffle supports and self-supports of wave-tube bundles and mixed tube bundles in the fully developed flow and heat transfer zone by using the turbulent model and hexahedron grid with the commercial software FLUENT.For each support the heat transfer,resistance
aggregative indicator -h/(LΔp)and the reliability for different values of support space (Ls=4.56