Abstract
This study evaluates the effect of a Rectangular Vortex Generator (RWVG) on the thermo-hydraulic performance of tubular heat exchangers for the flow Reynolds number range of 6000-2000). The geometric parameters, such as the flow attack angle (22.5°-135°) and normalized height (h/D=0.0392-0.3137), are varied for a fixed normalized width of 0.137 and longitudinal pitch distance of 60mm. Three-dimensional Computational Fluid Dynamics methodology is used to carry out the analysis. The results show that the presence of a rectangular vortex generator produces a pair of longitudinal vortices for a lower attack angle of flow and larger normalized height. The highest enhancement in Nusselt number is about 2.03 for a flow attack angle of 22.5° for a given h/D=0.0784 and b/D=0.137. The highest enhancement in friction factor is about 9.82 for h/D=0.3137 and b/D=0.137. The highest thermal enhancement factor ranges from 1.4-1.16 for α=22.5° for a given h/D=0.0784 and b/D=0.137.
| Original language | English |
|---|---|
| Pages (from-to) | 352-359 |
| Number of pages | 8 |
| Journal | International Review on Modelling and Simulations |
| Volume | 16 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2023 |
All Science Journal Classification (ASJC) codes
- Modelling and Simulation
- General Chemical Engineering
- Mechanical Engineering
- Logic
- Discrete Mathematics and Combinatorics
- Electrical and Electronic Engineering
- Applied Mathematics
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