@article{piya_Narato_Wae-hayee_Nuntadusit_2020, title={Flow and Heat Transfer Characteristic of Inclined Oval Trench Dimples With Numerical Simulation}, volume={12}, url={https://www.akademiabaru.com/submit/index.php/cfdl/article/view/2248}, DOI={10.37934/cfdl.12.11.6171}, abstractNote={<p>In this work, flow and heat transfer in a channel having oval trench dimples were investigated numerically. 3-D channel flow with a cross-section of 300-mm width and 32-mm height were created using Computational Fluid Dynamic (CFD) with ANSYS, Fluent (V.15.0). Five oval trench dimples with 3-mm depth, 10.0-mm width and 45-mm length arranging with a single row and in-line configuration were located on the bottom surface of the channel. Reynolds number based on hydraulic diameter of the channel were fixed at Re=20,000 whereas a dimple inclined angle defined as the angle of dimple centreline to the mainstream was varied at 0, 15, 30 and 45 degrees. &nbsp;SST turbulent model was used to solve governing Equations. The result show that longitudinal vortex flow occurred at ?=15° to 45° which would be enhance heat transfer on the surface. When inclined angle became larger, the areas of Nusselt number and high total pressure coefficient took place at dimple edge in +Z direction. The peak of average spanwise Nusselt numbers took place for the case of ?=45°. Moreover, the area of high spanwise average Nusselt numbers (&gt;100) for the case ?=30° was the largest.</p>}, number={11}, journal={CFD Letters}, author={piya, Ibroheng and Narato, Pathomporn and Wae-hayee, Makatar and Nuntadusit, Chayut}, year={2020}, month={Dec.}, pages={61–71} }