首页|Fast parameterized fractal modeling of active heat transfer channel
Fast parameterized fractal modeling of active heat transfer channel
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NSTL
Elsevier
This paper presents a fast parameterized modeling method for fractal channel and constructs a unified parametric model for Y-shaped, V-shaped, T-shaped fractal channels. This parametric model establishes the relationship between multiple parameters (levels ratio, bifurcation level, pipe diameter ratio, bifurcation angle, aspect ratio) and performance of fractal channel. Parameterized modeling method can reduce repetitive workload and time, improve efficiency. Meanwhile, parametric model allows for a more comprehensive study, and it is important for reduce the occasionality of results. Using the parameterized modeling method, the aspect ratio and fractal channel type are numerically studied. The numerical study of the aspect ratio reveals that with the increase of aspect ratio, Nusselt number decreases, the peak temperature rises and then falls, and the pressure drop first decreases and then increases. The numerical study of fractal channel types shows that the V-shaped channel has the best cooling performance and Y-shaped channel has the best flow performance. Compared to the T-shaped channel, Nusselt number of V-shaped channel increases by 11.29%-19.74%, the thermal resistance of V-shaped channel decreases by 8.18%-19.73%, and the pressure drop of Y-shaped channel decreases by 51.04%-61.75%. The fractal channel parametric model can be applied not only for parameter studies, but also for parameter optimization.
Active heat transferFractal channelParameterized modelingControl pointFractal networkSCRAMJET ENGINESOPTIMIZATIONSINK
NSTL
Elsevier
