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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

HEAT TRANSFER ENHANCEMENT OF A FLAT PLATE BY A DUAL COOLING JET AIRFLOW: EXPERIMENTAL AND NUMERICAL APPROACH

Get access (open in a dialog) DOI: 10.1615/IHTC16.nee.023862
pages 7503-7510

Abstract

This work presents results obtained on the characterization of hydrodynamics and thermal transfer coupling of a Dual piezoelectric Cool Jet (DCJ). The convective heat transfer enhancement is evaluated through experimental tests and numerical studies. Manipulations are implemented with measurements of power heat, temperatures along a heating plate and velocity. Numerical study is carried out through the STAR-CCM+CFD software. The high vibration frequency of piezoelectric membranes, corresponding to 175 Hz, induced a very little time step for air flow generation. Consequently, the main challenge in numerical simulation is the scale up of flow movements at an acceptable characterization time to be coherent with experimental results.