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Keywords: Turbulence modeling
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2019, 141(2): 021303.
Paper No: FE-18-1237
Published Online: August 16, 2018
... 2018 15 07 2018 Fluid transients Newtonian flows Non-Newtonian flows Turbulence Turbulence modeling Unsteady flows There is an increasing demand to understand the fluid dynamics of transient flow through industrial and biological systems; many of these systems contain non...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. October 2018, 140(10): 101401.
Paper No: FE-17-1320
Published Online: August 6, 2018
...) simulations and considering the change in the pipe cross section (a contraction). Four different contraction angles are selected for the investigations. The unsteady Reynolds-averaged Navier–Stokes (URANS) equations and the low-Reynolds k –ω shear stress transport (SST) turbulence model are used to simulate...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. November 2018, 140(11): 111108.
Paper No: FE-18-1194
Published Online: August 6, 2018
... approaches on the flow field around trains, which affects the surface pressure and consequently the aerodynamic forces of the train, was not properly investigated in terms of their influence flow field. The SST and improved delayed detached eddy simulation (IDDES) turbulence models have been tested...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2019, 141(1): 011205.
Paper No: FE-17-1612
Published Online: June 29, 2018
.... Assoc. Editor: Sergio Pirozzoli. 26 09 2017 28 05 2018 Boundary layers Computational fluid dynamics RANS simulations Rotating fluids Turbulence Turbulence modeling Unsteady flows Vortices Wakes Boundary layer flows over three-dimensional (3D) curved bodies...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2019, 141(2): 021401.
Paper No: FE-17-1756
Published Online: June 29, 2018
... power plants, such as the small modular reactor [ 2 , 3 ]. Ultimately, the design can be classified as a shell and tube heat exchanger with physics that resembles crossflow over a cylinder. Computational fluid dynamics Duct LES Pressure drop Turbulence Turbulence modeling Unsteady flows...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. December 2018, 140(12): 121108.
Paper No: FE-18-1031
Published Online: June 26, 2018
...) turbulence models can be used to simulate the twin jet behavior with reasonable success for design and analysis activities. The experimental uncertainty for the velocity in the streamwise and spanwise directions, and off-diagonal Reynolds stress component ( u ′ v...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. November 2018, 140(11): 111107.
Paper No: FE-17-1164
Published Online: June 13, 2018
... turbulence models should satisfy the following key criteria: Overall, the growth of C f and its variation with TI, growth of near-wall vortical structures, growth of u ′ 2 during transition, and energy redistribution mechanisms confirm that the growth of turbulence in the channel flow...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. December 2018, 140(12): 121102.
Paper No: FE-17-1695
Published Online: June 13, 2018
... – ω were better than those of the shear stress transport (SST) transition. Aerodynamics Computational fluid dynamics Experimental techniques Stability Turbulence modeling Transition Low aspect ratios (AR) wing flows are quite important in terms of aerodynamics of micro-air vehicles...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. December 2018, 140(12): 121101.
Paper No: FE-17-1509
Published Online: June 13, 2018
... OURNAL OF F LUIDS E NGINEERING . Manuscript received August 18, 2017; final manuscript received May 2, 2018; published online June 13, 2018. Assoc. Editor: Jun Chen. 18 08 2017 02 05 2018 Aerodynamics Computational fluid dynamics Drag Turbulence Turbulence modeling Wakes...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. October 2018, 140(10): 101102.
Paper No: FE-17-1169
Published Online: May 7, 2018
... previously obtained by different research groups. The proposed approach has shown a good level of agreement as regards the global and the local experimental fluid dynamic quantities. In addition, sensitivity analyses have been carried out concerning (a) grid independency, (b) turbulence modeling approaches...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. August 2018, 140(8): 081101.
Paper No: FE-17-1541
Published Online: March 27, 2018
... received August 29, 2017; final manuscript received February 19, 2018; published online March 27, 2018. Assoc. Editor: Daniel Livescu. 29 08 2017 19 02 2018 Computational fluid dynamics Turbulence Turbulence modeling Turbulence models are simplified constitutive equations...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. July 2018, 140(7): 071402.
Paper No: FE-17-1202
Published Online: March 16, 2018
..., together with the convective terms, within the differences between fluxes of neighboring computational cells. In order to consider the effect of unsteady friction terms during the water hammer process, k − ε and k − ω turbulence models are employed. The performance of the proposed method with the choice...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. June 2018, 140(6): 061204.
Paper No: FE-16-1833
Published Online: February 23, 2018
... online February 23, 2018. Assoc. Editor: Elias Balaras. 16 12 2016 03 01 2018 Fluid transients Turbulence Turbulence modeling The effects of pressure transients such as water hammer, resulting from rapid acceleration or deceleration of flow in lines such as in fluid power...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. June 2018, 140(6): 061403.
Paper No: FE-17-1514
Published Online: February 23, 2018
...Ashwani Assam; Nikhil Narayan Kalkote; Vatsalya Sharma; Vinayak Eswaran The Spalart–Allmaras (SA) is one of the most popular turbulence models in the aerospace computational fluid dynamics (CFD) community. In its original (low-Reynolds number) formulation, it requires a very tight grid spacing near...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2018, 140(5): 051203.
Paper No: FE-17-1432
Published Online: January 9, 2018
...) simulations using conventional turbulence models. This is because of the constant Prandtl number assumption, which fails in the presence of strong adverse pressure gradient (APG) of the shock waves. Experimental data suggest a reduction of the turbulent Prandtl number in boundary layers subjected to APG. We...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2018, 140(1): 011107.
Paper No: FE-17-1258
Published Online: October 4, 2017
.... , Braza , M. , Hoarau , Y. , and Harran , G. , 2008 , “ Turbulence Modelling of the Flow Past a Pitching NACA0012 Airfoil at 105 and 106 Reynolds Numbers ,” J. Fluids Struct. , 24 ( 8 ), pp. 1294 – 1303 . 10.1016/j.jfluidstructs.2008.08.002 [11] Martinat , G. , Hoarau , Y...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2018, 140(1): 011101.
Paper No: FE-17-1035
Published Online: September 20, 2017
... , Foreign Language Press , Beijing, China . [29] Hanjalic , K. , 2005 , “ Will RANS Survive LES? A View of Perspectives ,” ASME J. Fluids Eng. , 127 ( 5 ), pp. 831 – 839 . 10.1115/1.2037084 [30] Menter , F. R. , 2009 , “ Review of the Shear-Stress Transport Turbulence Model...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. November 2017, 139(11): 111205.
Paper No: FE-17-1058
Published Online: August 25, 2017
... to high pressure gradients do not follow the universal log-law, and (for this and other reasons) the prediction of boundary layer (BL) parameters using current turbulence models has not been successful. However, a quasi-laminar theory (QLT; proposed in 1973), based on a two-layer model to explain...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. November 2017, 139(11): 111204.
Paper No: FE-17-1211
Published Online: August 11, 2017
... NGINEERING . Manuscript received April 6, 2017; final manuscript received June 14, 2017; published online August 11, 2017. Assoc. Editor: Riccardo Mereu. 06 04 2017 14 06 2017 Acoustics Computational fluid dynamics LES Turbulence modeling Over the recent decade, the interest...