Accession Number:

ADA587941

Title:

Computational Modeling and Design of Actively-Cooled Microvascular Materials

Descriptive Note:

Journal article

Corporate Author:

ILLINOIS UNIV AT URBANA BECKMAN INST

Report Date:

2012-06-14

Pagination or Media Count:

14.0

Abstract:

The computational modeling and design of an actively-cooled microvascular fin specimen is presented. The design study is based on three objective functions i minimizing the maximum temperature in the thermally loaded fin, ii optimizing the flow efficiency of the embedded microchannel, and iii minimizing the void volume fraction of the microvascular material. A recently introduced Interface-enriched Generalized Finite Element Method IGFEM is employed to evaluate the temperature field in a 2D model of the specimen, allowing for the accurate and efficient capturing of the gradient discontinuity along the fluidsolid interface without the need of meshes that conform to the geometry of the problem. Finding the optimal shape of the embedded microchannel is thus accomplished with a single non-conforming mesh for all configurations. Prior to the optimization study, the IGFEM solver is validated through comparison with infrared measurements of the thermal response of an epoxy fin with a sinusoidal microchannel

Subject Categories:

  • Air Conditioning, Heating, Lighting and Ventilating
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE