Indian Journal of Science and Technology
Year: 2017, Volume: 10, Issue: 2, Pages: 1-5
Hayder A. Abdulbari 1*, Mohamad Amran Mohd Salleh2, 3 ,Musaab K. Rashed2, 4 and M. Halim Shah Ismail2
1Center of Excellence for Advanced Research in Fluid Flow, University Malaysia Pahang, Gambang, Kuantan, Pahang, Malaysia; [email protected] 2Department of Chemical and Environmental Engineering, Faculty of Engineering, University Putra Malaysia, UPM Serdang, Selangor, Malaysia; [email protected], [email protected] 3Material Processing and Technology Laboratory, Institute of Advanced Technology, University Putra Malaysia, UPM Serdang, Selangor, Malaysia; 4Institute of technology, Middle Technical University, Foundation of Technical Education, Baghdad, Iraq; [email protected]
*Author for correspondence:
Hayder A. Abdulbari
Center of Excellence for Advanced Research in Fluid Flow, University Malaysia Pahang, Gambang, Kuantan, Pahang, Malaysia; Email: [email protected]
Objectives:Turbulent Drag Reduction (DR) efficacy of diesel fuelin a Rotating Disk Apparatus (RDA) using anionic surfactant of Sodium Lauryl Ether Sulfate (SLES) was investigated with smooth andSV-groove disks(riblets height of 900 and 3100 µm). Methods: The DR efficacy indicates how the torque is being reduced with a tiny amount of additives under a turbulent flow at a Reynolds number (Re) range of 302227 to 453341. The effects of different variables such as rotary disk type (smooth or structured), surfactant concentration, and Reynolds number were also studied. Findings: SLES shows a good ability to reduce the frictional drag forces with smooth and SV-groove of height 3100µm. In contract, there is no drag reduction can be observed by using this surfactant with SV-groove of height 900 µm. Application/Improvements: The passive-active interaction method can be used to improve petroleum liquid flow in pipelines.
Keywords: Centellaasiatica, Flavonoid, Leaf Morphology, Secondary Metabolites
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