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Keywords: laminar flow
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Journal Articles
Article Type: Technical Briefs
J. Fluids Eng. February 2021, 143(2): 024503.
Paper No: FE-20-1124
Published Online: October 26, 2020
... and theoretical results for the boundary layer thickness, pressure drop, and centerline velocity for small values of the Bingham number. Bingham fluid inlet region entrance region laminar flow momentum integral method boundary layer Laminar flow in the entrance region of a circular pipe has been...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. April 2015, 137(4): 041201.
Paper No: FE-14-1106
Published Online: April 1, 2015
... 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...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. March 2014, 136(3): 031203.
Paper No: FE-13-1052
Published Online: January 24, 2014
... - 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...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. February 2014, 136(2): 021103.
Paper No: FE-13-1241
Published Online: December 9, 2013
... 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...
Journal Articles
Article Type: Fundamental Issues And Canonical Flows
J. Fluids Eng. May 2012, 134(5): 051210.
Published Online: May 22, 2012
...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...
Journal Articles
Article Type: Fundamental Issues And Canonical Flows
J. Fluids Eng. January 2012, 134(1): 011205.
Published Online: February 24, 2012
... 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...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. December 2011, 133(12): 121202.
Published Online: December 20, 2011
... 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...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. November 2011, 133(11): 111202.
Published Online: October 19, 2011
... 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...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. August 2011, 133(8): 081202.
Published Online: August 19, 2011
...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...
Journal Articles
Article Type: Technical Briefs
J. Fluids Eng. July 2011, 133(7): 074502.
Published Online: July 19, 2011
... 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...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. July 2011, 133(7): 071202.
Published Online: July 5, 2011
...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...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. June 2011, 133(6): 061202.
Published Online: June 16, 2011
... 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...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. June 2011, 133(6): 061203.
Published Online: June 16, 2011
...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...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. June 2011, 133(6): 061103.
Published Online: June 15, 2011
... 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...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. May 2011, 133(5): 051103.
Published Online: June 7, 2011
... 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...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. April 2011, 133(4): 041201.
Published Online: May 16, 2011
.... , and Lee , S. , 1999 , “Laminar Flow Past a Rrotating Circular Cylinder,” Phys. Fluids , 11 , pp. 3312 – 3321 . 10.1063/1.870190 16 Kimura , T. , and Tsutahara , M. , 1991 , “ Wake of a Rotating Circular Cylinder ,” AIAA J. , 30 , pp. 555 – 556 . 17 Chew , Y. T...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. March 2011, 133(3): 031102.
Published Online: March 16, 2011
.... , 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...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. March 2011, 133(3): 031303.
Published Online: March 16, 2011
.... ( 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...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. March 2011, 133(3): 031201.
Published Online: March 10, 2011
... , 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...
Journal Articles
Article Type: Technical Briefs
J. Fluids Eng. January 2011, 133(1): 014501.
Published Online: January 13, 2011
...Y. Moussy; A. D. Snider An approximate solution to the Navier–Stokes equations was found for the case describing two-dimensional steady-state laminar flow over an array of porous pipes with high wall Reynolds number. The Navier–Stokes equations in cylindrical coordinates reduced to a fourth-order...