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Updated: Jul 30, 2026
08:25
Measurements of Local Instantaneous Convective Heat Transfer in a Pipe - Single and Two-phase Flow
Published on: April 30, 2018
Heat transport by fluid flows with prescribed velocity fields
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|November 3, 2001
Summary
This study examines heat transport in fluid flows. We found that the Nusselt number, indicating heat transfer efficiency, scales differently for circulation and shear flows, providing insights into turbulent convection.
Area of Science:
- Fluid dynamics
- Heat transfer
- Turbulent convection
Background:
- Turbulent convection experiments reveal dominant large-scale flow features.
- Understanding heat transport mechanisms in such flows is crucial.
Purpose of the Study:
- To investigate heat transport by fluid flows with prescribed velocity fields.
- To analyze the impact of circulation and shear flows on heat transport.
Main Methods:
- Solving the two-dimensional advection-diffusion equation.
- Simulating two distinct velocity fields: circulation and shear flow.
Main Results:
- The Nusselt number, a measure of heat transport, was calculated for each flow type.
- Distinct scaling relationships for the Nusselt number were observed for circulation and shear flows.
Conclusions:
- The study provides insights into how different flow structures influence heat transport.
- Findings are relevant to understanding heat transfer in turbulent convection.
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