Numerical Simulation of Dynamic Pressure and Kinetic Energy Fields of Turbulent Oil Flow in Staggered Baffled Pipes

Abstract

This manuscript reports numerical data of computational analyses of oil flows in twodimensional horizontal rectangular cross section pipes with upper and lower wallplaced staggered solid flat baffles and fins. The physical properties of fluid (oil) and solid (Al) are constant. The flow is assumed to be steady, turbulent, and incompressible. The velocity profile at the entrance is uniform one-dimensional. The fluid temperature is set equal to 298 K at the inlet section. The upper pipe surface was put in a constant temperature condition, as the lower surface was thermally insulated. The atmospheric pressure is prescribed at the pipe outlet. Impermeable boundary and no-slip wall conditions are applied for the pipe walls and the baffle plates. The radiation mode of heat transfer is neglected according to other modes of heat transfer. Two various baffled pipe configurations are treated. The technique CFD is applied in the calculation. The Reynolds number is varied from 12,000 to 32,000, and different fields, i.e., dynamic pressure, velocity-magnitude, turbulent kinetic energy, and turbulent viscosity, are presented and analyzed numerically.

Heat and mass transfer of oils in baffled and finned ducts

“…-The following geometry parameters, the length and height of the ducts (L = 0.554 m and H = 0.146 m), as well as the height of the obstacles (h = 0.08 m) were approved from the numerical and experimental analysis of Demartini and his colleagues in [24]. The present work is a complementary analysis of our previous studies, referenced in [25,26]. A detailed analysis of the velocity fields and their curves at different locations from the ducts is included in the referenced paper [25].…”

“…A detailed analysis of the velocity fields and their curves at different locations from the ducts is included in the referenced paper [25]. While, the dynamic pressure, turbulent kinetic energy, as well as turbulent viscosity contours are discussed in the second part of the work [26].…”

Heat and mass transfer of oils in baffled and finned ducts

“…-The following geometry parameters, the length and height of the ducts (L = 0.554 m and H = 0.146 m), as well as the height of the obstacles (h = 0.08 m) were approved from the numerical and experimental analysis of Demartini and his colleagues in [24]. The present work is a complementary analysis of our previous studies, referenced in [25,26]. A detailed analysis of the velocity fields and their curves at different locations from the ducts is included in the referenced paper [25].…”

“…A detailed analysis of the velocity fields and their curves at different locations from the ducts is included in the referenced paper [25]. While, the dynamic pressure, turbulent kinetic energy, as well as turbulent viscosity contours are discussed in the second part of the work [26].…”

Performance Numerical Method Half-Sweep Preconditioned Gauss-Seidel for Solving Fractional Diffusion Equation

“…From The previous studies in [1][2][3][4][5] many successful mathematical models, which are based on fractional partial derivative equations (FPDEs), have been developed. Following to that, there are several methods used to solve these models.…”