Heat Transfer in Pipe with Twisted Tape Inserts: CFD Validation Using ANSYS Fluent
Project Overview
Using ANSYS Fluent, this project models heat transmission in a pipe with a twisted tape. The goal is to confirm and duplicate findings from the reference paper "Analysis of Heat Transfer in Pipe with Twisted Tape Inserts."
Geometry and Meshing
- Model Design: Comprising a twisted tape with a screw pitch of 0.110 m (pitch-to-diameter ratio of 5), a 3D tube measuring 0.022 m in diameter and 2.2 m in length.
- Meshing: Created in ANSYS Meshing, unstructured mesh with 476,442 components.
Methodology
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Fluid Dynamics:
- Fluid: Water
- Reynolds Number: 800
- Velocity: 0.0365 m/s
- Inlet Temperature: 298.15 K
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Boundary Conditions:
- Pipe Wall: Constant heat flux of 5725 W/m²
- Twisted Tape: Thermally insulated, influencing heat transfer efficiency
Results and Conclusion
Understanding heat transfer efficiency depends on the Nusselt number on the pipe wall, hence the main emphasis is Under the identical circumstances, the simulation produces a Nusselt number of 25.737018, which nearly corresponds to the figure of 24.78 from the reference study.
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Validation: A comparison table for P/D=5 and Re=800 helps to check the findings against the reference publication.
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Visualizations: To show the flow and heat transfer dynamics, 3D contours of pressure, temperature, velocity, and pathlines are produced.
By means of twisted tape inserts, this work clearly shows their impact on heat transport in pipes, hence offering insights useful for enhancing thermal management systems.