2012 ©
             Publication
Journal Publication
Title of Article CFD Investigation of Damper Plate Effect on Air Flow in High Speed Rotation Hard Disk Drive by Using K-E with a Partial Model 
Date of Acceptance 29 March 2013 
Journal
     Title of Journal Applied Mechanics and materials 
     Standard  
     Institute of Journal Trans Tech Publications, Switzerland 
     ISBN/ISSN 978-3-03785-834-9 
     Volume  
     Issue 392(2013) 
     Month
     Year of Publication 2013 
     Page 85-89 
     Abstract In HDD air flow simulation, the well known LES turbulent model requires large computing times and resources, including CPU, RAM and storage intensive which is not appropriate when using various variables. The effect of an air damper is studied by the k-e model with a reduced boundary due to the lower number of equations, computing time and computer resources. Firstly the RMS velocities of a partial model are compared between LES and k-e and then the reduced boundary models are compared with the partial model. The RMS velocity errors of the partial model compared with LES and k-e are less than 6 %. The mean RMS velocity errors compared with the reduced boundary model and the partial model are 3.93% at ID and 2.12% at MD position while the OD position increased to 26.5% because there is no effect from a return flow from the flex bracket and voice coil zone. Computing time of the reduced boundary and k-e model is reduced by 68.4%. In primary HDD air flow analysis, the k-e method together with a reduced model can be used to predict the effect of an air damper. 
     Keyword Hard Disk Drive, Air Damper, Turbulent Model, Flow Simulation 
Author
527040028-0 Mr. JARUPOL SURIYAWANAKUL [Main Author]
Engineering Doctoral Degree

Reviewing Status มีผู้ประเมินอิสระ 
Status ตีพิมพ์แล้ว 
Level of Publication นานาชาติ 
citation false 
Part of thesis true 
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