Computational study of triangular waveform oscillation mode to the temperature distribution of a heated wall impinged by a synthetic jet

Harinaldi, Damora Rhakasywi, Rikko Defriadi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This research is a continuation of synthetic jet characteristics investigation over convective cooling of impinging jet model. The synthetic jet cooling uses an air flowing in a vertical direction into the heated wall. This model uses an oscilating membrane to push and pull the air from and to the cavity. The purpose of this model of synthetic jet is to create vortices pair to come out from nozzle which will accelerate the heat transfer process occurring at the wall. This heat transfer enhancement principle has became the basis to simulate an alternative cooling system in order to substitute the conventional fan cooling in electronic devices due to its advantage for having a small form factor and low noise. The investigation is conducted in the computational work. In this research, the synthetic jet prototype model was simulated to examine the distribution of heat flow on the walls using a mathematical turbulent model k-ω SST. Meshing order was elements Tet/Hybrid and type Tgrid and the number of grid was more than 233.886 in order to ensure detail discretization and more accurate calculation results. This simulation used a triangular waveform as it excitation source. The frequencies of excitation were 80 Hz, 120 Hz, 160 Hz and the amplitude was 1 m/s. Using this variation, the main goal is to increase the heat transfer coefficient generated by the synthetic jet blow.

Original languageEnglish
Title of host publication4th International Meeting of Advances in Thermofluids, IMAT 2011
Pages1227-1234
Number of pages8
DOIs
Publication statusPublished - 1 Dec 2012
Event4th International Meeting of Advances in Thermofluids, IMAT 2011 - Melaka, Malaysia
Duration: 3 Oct 20114 Oct 2011

Publication series

NameAIP Conference Proceedings
Volume1440
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Meeting of Advances in Thermofluids, IMAT 2011
Country/TerritoryMalaysia
CityMelaka
Period3/10/114/10/11

Keywords

  • heat transfer
  • impinging wall
  • synthetic jet
  • triangular waveform

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