Computational Fluid Dynamics Analysis of Flow Patterns, Pressure Drop, and Heat Transfer Coefficient in Staggered and Inline Shell-Tube Heat Exchangers

Table 2

Boundary conditions applied at various faces.

Sr. No.	Physical location	Boundary condition
1	Shell wall	Adiabatic wall boundary condition (no slip) (q˝ = 0; u =  =  = 0)
2	Baffle walls	Wall boundary condition (no slip) (Tb= Tatm = 27°C; u =  =  = 0)
3	Shell outlet	Pressure outlet (P = Patm; T = Tatm)
4	Tube outlet	Pressure outlet (P = Patm; T = Tatm)
5	Pipe walls	Conjugate heat transfer
6	Inlets	Mass flow inlets (corresponding to 0.1 kg/s−0.5 kg/s for shell side having fixed inlet temperature Tcin = 20°C and 0.25 kg/s for tube side with fixed Thin = 85°C)