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Spring 2020

MOHAMMADTABAR,MOHAMMAD

The higher drag of turbulent flows relative to laminar flows requires greater pumping power and results in a higher transportation cost. For this reason, reducing drag in turbulent pipe flows is of interest. Among various methods, the use of long-chain polymers has attracted more attention due to...

Spring 2016

Bhambri, Pallavi

The current study investigates the drag reduction (DR) using high molecular weight polymers such as commercial polyacrylamide, polysaccharides and thermo-responsive polymers. A Taylor-Couette (TC) setup was designed and fabricated to examine the abovementioned polymers for drag reduction, and to...

Spring 2018

Shaban, Sadek M Ali

The addition of a minute amount of long-chain polymer molecules to a turbulent flow can cause a significant reduction of skin-friction drag in both internal and external flows. The explanation of interaction between polymers and turbulence remains the most difficult area of polymer flow...

Fall 2015

Boyer, Henry R.

Wind-tunnel experiments and Computational Fluid Dynamics (CFD) were performed to study the effect a deflector had on the flow and drag force associated with a 2010 F-150 truck and cargo trailer (Light Vehicle-Trailer System - LVTS). Image Correlation Velocimetry (ICV) on smokewire streaklines...

Fall 2016

Hou, Jianfeng

Riblet surfaces have been introduced as of one successful technique to reduce skin-friction. Advanced particle image velocimetry (PIV) and particle tracking velocimetry (PTV) are employed to investigate turbulent structures over riblet surfaces by several researchers including Suzuki and Kasagi...

Fall 2023

Javed, Kashif

The increasing energy demand, dependency on fossil fuels, reduction in their reserves, and rise in greenhouse gas (GHG) emissions have drawn global attention toward a more viable alternative, such as biofuels produced from agricultural residue biomass, which is an abundantly available type of...