Effect of vortex generators in accelerating the thermal diffusion inside the stokes boundary layer

This paper presents a numerical study on the use of oscillatory flow mechanisms to enhance turbulent incompressible heat transfer within a circular tube. Simulations were performed to analyze the effect of oscillations on heat transfer. Simulations were first performed at a steady-state (at Re=12500...

Full description

Saved in:
Bibliographic Details
Main Authors: Saood, Marwa M., Jalil, Saad M.
Format: Conference Proceeding
Language:English
Subjects:
Boundary layers
Circular tubes
Diffusion layers
Fluid flow
Heat transfer
Incompressible flow
Oscillating flow
Thermal conductivity
Thermal diffusion
Turbulent flow
Unsteady state
Vortex generators
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents a numerical study on the use of oscillatory flow mechanisms to enhance turbulent incompressible heat transfer within a circular tube. Simulations were performed to analyze the effect of oscillations on heat transfer. Simulations were first performed at a steady-state (at Re=12500) to serve as a basis for comparison with the time-accurate oscillation results. The objective of the study proposes the best dimensions of VG as a function of the thickness of the Stokes boundary layer, which enhances the effective thermal conductivity of the fluid. The results showed that the improvement in the heat transfer process in the steady state is better than the improvement in the unsteady state.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0190514