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Keywords: drag reduction
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Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A029, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-112638
... Abstract Flow drag reduction plays a significant role in numerous engineering applications. Microfluidics has been studied for various important applications, such as energy conversion, microfluidic sensors, biosensing, and biomedical devices. In laminar flows in microchannels, drag reduction...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A012, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-114279
... flow control strategies have been proposed to reduce the aerodynamic drag of trucks. The effects of steady blowing on drag reduction of the Ground Transportation System (GTS) truck model are studied using an Improved Delayed Detached Eddy Simulation (IDDES) model, with a Shear Stress Transport (SST) k...
Proceedings Papers

Proc. ASME. IMECE2020, Volume 10: Fluids Engineering, V010T10A056, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-24480
... coefficient and the pressure drag coefficient. The results are shown in dependency of the dimensionless Reynolds number. In the simulations, the Reynolds number was changed by increasing the velocity and changing the characteristic length. supercavitation CFD drag reduction CFD INVESTIGATIONS...
Proceedings Papers

Proc. ASME. IMECE2012, Volume 7: Fluids and Heat Transfer, Parts A, B, C, and D, 1213-1220, November 9–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2012-86816
... In the presented work, two studies using Computational Fluid Dynamics (CFD) have been conducted on a generic truck-like model with and without a trailer unit at a speed of 80 km/h. The purpose is to evaluate drag reduction possibilities using externally fitted devices. A first study deals...
Proceedings Papers

Proc. ASME. IMECE2010, Volume 7: Fluid Flow, Heat Transfer and Thermal Systems, Parts A and B, 709-718, November 12–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2010-37697
... that is 1000 times larger than polymer molecules. The mechanism of drag reduction and its impact on centrifugal pump performance is poorly understood, especially when there is a combination of polymer and fibres in suspension. Centrifugal (slurry) pump performance was measured as a function of pulp fibre...
Proceedings Papers

Proc. ASME. IMECE2008, Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C, 77-86, October 31–November 6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2008-68190
... effect. superhydrophobic surface liquid slip wetting transition drag reduction Proceedings of IMECE2008 2008 ASME International Mechanical Engineering Congress and Exposition November 2-6, 2008, Boston, Massachusetts, USA O D E 7 te 4 wafer with a good size uniformity and no defect. A pitch...
Proceedings Papers

Proc. ASME. IMECE2002, Heat Transfer, Volume 1, 59-63, November 17–22, 2002
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2002-32945
... significantly different effects on the flow. The forward step caused a stronger disturbance with a small increase in drag. The backward step arrangement softened the disturbance but reduced the drag coefficient by 33%. incompressible viscous fluids flow past cylinder drag reduction boundary layer...
Proceedings Papers

Proc. ASME. IMECE2004, Advanced Energy Systems, 273-278, November 13–19, 2004
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2004-62193
... HVAC drag reduction surfactants pumping additives A field test of the use of drag-reducing additives in hydronic cooling systems was conducted in a medium-size building on the UCSB campus. The purpose of the demonstration was to show that pumping power can be significantly reduced...
Proceedings Papers

Proc. ASME. IMECE2006, Fluids Engineering, 1045-1053, November 5–10, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2006-16368
... coefficient also reduced by 46 percent by introducing smooth frontal fillets in case of tractor and single trailer. The study also emphasizes flow structures around the vehicle that contribute to the total drag. Truck aerodynamics aerodynamic drag CFD simulations drag coefficient drag reduction...
Proceedings Papers

Proc. ASME. IMECE2006, Fluids Engineering, 955-970, November 5–10, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2006-16336
... 12 02 2008 This study experimentally investigates the drag reduction characteristics of the most commonly used polymer fluids in coiled tubing applications. The flow loop employed consists of 1/2-in. straight and coiled tubing sections. The curvature ratio (a/R where a and R...