Figure 12.
Visualization of dimensionless temperature distribution (θ) in a finned heat exchanger module. The central 3D model shows twisted fins, while six surrounding cross-sectional slices display temperature contours at different axial positions. Color gradients range from blue (θ = 0) to red (θ = 1), highlighting thermal boundary layers and heat transfer evolution along the flow path.The image features a central three-dimensional twisted structure with grey shading. Surrounding it are four concentric rings, each displaying color gradients representing specific data values, ranging from zero to one. Each ring has a corresponding color scale legend at the top, using red and blue hues to indicate values from 0 to 1. The structure and the surrounding rings are connected by thin lines. This layout allows for clear comparison among the rings, showcasing variations in data within the context of the central twisted form.

Dimensionless temperature contours along a representative finned module of the studied HE

Source: Authors’ own work

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