Heat and Mass Transfer

, Volume 49, Issue 6, pp 827–834 | Cite as

The design of an asymmetric bionic branching channel for electronic chips cooling

  • Shanglong Xu
  • Jie Qin
  • Wei Guo
  • Kuang Fang


Inspired by the wing vein of Lepidoptera, a designment of asymmetric bionic branching channel for electronic chips cooling is developed. Lepidoptera vein D was chosen to measure the angle of first and second branch level. Based on these regular patterns, an asymmetric bionic branching channel is designed in a 35 mm × 35 mm chip. Comparing with fractal-like branching channel, it provides a stronger heat transfer capability, lower pressure drop and lower flow resistance in the experiment.


Pressure Drop Pump Power Parallel Channel Level Channel Inlet Flow Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

List of symbols


Hydraulic diameter (mm)


Channel length (mm)


Channel depth (mm)


Channel width (mm)


Mass flow rate (kg m s−1)


Kinematic viscosity (m2 s−1)


Pressure drop (Pa)


Number of channel


Density (kg m−3)


Specific heat (kJ/kg°C)


Thermal conductivity (W/m°C)

u, v, w

Velocity vectors



This work was supported by National Natural Science Foundation of China (No. 50906009).


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of Mechatronics EngineeringUniversity of Electronic Science and Technology of ChinaChengduChina

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