...Cetin Canpolat; Hudhaifa Hamzah; Besir Sahin In this work, periodic vortex shedding at both sides of a circular cylinder is aimed to be suppressed using a concentrically located perforated cylinder under laminar flow conditions at Re = 200. A code is developed in comsol multiphysics , 5.3a...

... the Bingham viscosity, u is the axial component of the velocity, and r is the radial coordinate. Laminar flow in the entrance region of a circular pipe has been studied extensively for various types of fluids. Investigating the development of fluid flow is important in cases where the pipe length...

... increases the drag reduction by up to four times when comparing with grooves on one wall only. The predictions remain valid for any Reynolds number as long as the flow remains laminar. drag reduction grooves pressure-driven channel flow laminar flow pressure losses The efficiency of air...

... - A ρ c dp dt + f = 0     when     dx dt = - c For steady laminar flow, the friction term f ( q ) can be approximated as (7) f ( q ) = 8 ν r 2 q It was found that the estimated flow rate detected at the locations of two ideal...

... online December 9, 2013. Assoc. Editor: D. Keith Walters. 15 04 2013 20 08 2013 A mathematical model based on continuity and Navier-Stokes equations, considering laminar flow in the gap between the disks, is presented to estimate the drag torque in open multidisks wet clutches...

...Sujoy Kumar Saha; Bikram Narayan Swain; G. L. Dayanidhi The experimental friction factor and Nusselt number data for a laminar flow through a circular duct having axial corrugation and fitted with helical screw-tape inserts have been presented. Predictive friction factor and Nusselt number...

... in a horizontal plane. Axisymmetric computational domain is chosen for the analysis considering steady, laminar flow. The numerical simulation is carried out by an in-house CFD code developed following the finite volume method and SIMPLER algorithm. The effects of flow rate and channel dimensions are analyzed...

... to the theoretical model, and measurement accuracy. 01 05 2011 10 10 2011 20 12 2011 20 12 2011 boundary layer turbulence flow simulation heat exchangers laminar flow laminar to turbulent transitions microchannel flow Navier-Stokes equations pipe flow micro-channels laminar...

... equations for velocity and shear stress profiles were derived for N layers with known viscosities, assuming steady laminar flow in a microchannel driven by pressure and/or electro-static (Coulomb) forces. Numerical simulation results, using a commercial software package, match analytical results for fully...

...Shizhao Wang; Luoding Zhu; Xing Zhang; Guowei He In this paper we investigate the interaction of two freely rotatable triangular cylinders that are placed in tandem in a laminar flow. To study how the spacing between the two cylinders may influence the dynamic behavior of the cylinders and vortical...

... at the rod wall in the gap position. 28 06 2009 10 06 2011 19 07 2011 19 07 2011 boundary layer turbulence external flows flow measurement laminar flow pipe flow rods (structures) The polar distribution of wall pressures around a circular tube of a cell bundle in yawed...

...Ivar Annus; Tiit Koppel A uniformly accelerated laminar flow in a pipe, initially at rest, is analyzed. The acceleration increases the critical Reynolds number remarkably. New experimental findings are used to describe the transitional process in accelerating pipe flow. The results are shown...

... blades boundary layers confined flow containers flow visualisation impellers integration laminar flow Lyapunov methods mixing vortices Experimental work on planetary mixers has historically centered on scalar measurements such as power consumption, mixing patterns or final mixture...

...Edmond J. Walsh; Donald M. Mc Eligot; Luca Brandt; Phillip Schlatter The objective of the present research is to develop new fundamental knowledge of the entropy generation process in laminar flow with significant fluctuations (called pre-transition) and during transition prematurely induced...

... between them do not dictate the pressure drop. Pressure drop shows a weak, nonlinear dependence on the orifice wall thickness (or the length of the orifice tube). This is in contrast with the prior studies that assumed a linear dependence, typical of a fully developed laminar flow profile. Jets...

... channel speed. At higher Reynolds numbers, some mal-distribution is observed due to developing flow conditions, but it is not as significant as with typical untapered designs. 10 12 2010 27 04 2011 07 06 2011 07 06 2011 cooling laminar flow microchannel flow Over...

... al. [ 15 ] numerically investigated two-dimensional laminar flow past a circular cylinder rotating with a constant angular velocity at Reynolds numbers of 60, 100, and 160 and 0 ≤ α ≤ 2 . 5 . They showed that vortex shedding activity...

.... , 2004 , “ Laminar Liquid Flow Through Silicon Microchannels ,” ASME J. Fluids Eng. 0098-2202 , 126 ( 3 ), pp. 485 – 489 . 10.1115/1.1760545 Bahrami , M. , Yovanovich , M. M. , and Culham , J. R. , 2006 , “ Pressure Drop of Fully-Developed, Laminar Flow in Microchannels...

.... ( 13 ) developed a computational model that described the dynamic behavior of a non-Newtonian drop impinging on a flat surface. The effects of the non-Newtonian liquid rheological parameters were studied on the drop deposition and spreading. channel flow drops flow simulation laminar flow...

... , New York , pp. 416 – 419 . flow simulation jets laminar flow numerical analysis vortices Recent advancement in computer technology (e.g., high-performance computing and parallel clustering) and high-fidelity numerical methods (e.g., direct and large-eddy numerical simulations) has...