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Keywords: turbulence
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Appl. Mech. October 2021, 88(10): 101001.
Paper No: JAM-21-1088
Published Online: May 24, 2021
... Device of Dry Gauze Method by CFD ,” Proceedings of 25th National Symposium on Wind Engineering , Tokyo, Japan , Dec. 3–5 , pp. 157 – 162 (in Japanese). [37] Maruyama , T. , 2008 , “ Large Eddy Simulation of Turbulent Flow Around a Windbreak ,” J. Wind Eng. Ind. Aerodyn. , 96 ( 10–11...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Appl. Mech. April 2021, 88(4): 041007.
Paper No: JAM-20-1600
Published Online: January 7, 2021
... 12 2020 07 01 2021 postbuckled structures free vibration thin film viscoelasticity dynamics turbulence structures vibration Taking advantage of the good mechanical properties, stable chemical properties, and multifunctionality, stretchable electronic devices based...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Appl. Mech. June 2020, 87(6): 061001.
Paper No: JAM-20-1014
Published Online: March 12, 2020
... is the number of elements, τ M , τ C , and τ ϕ are the corresponding stabilization parameters [ 41 – 43 ]. These terms also act as a large Eddy simulation turbulence model for high Reynolds number wall bounded flows. r M ( u h , p h ), r C ( u h , p...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Appl. Mech. December 2014, 81(12): 121003.
Paper No: JAM-14-1346
Published Online: October 20, 2014
...Y. Bazilevs; J. Yan; M. de Stadler; S. Sarkar The mean pressure and skin-friction coefficient distributions are plotted in Fig. 12 . While almost no difference is observed on the front surface of the sphere, on the back surface the turbulent inflow computation predicts higher magnitude...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Appl. Mech. June 2014, 81(6): 061010.
Paper No: JAM-13-1423
Published Online: March 6, 2014
... , 223 ( 4 ), pp. 415 – 427 . 10.1243/09576509JPE578 [7] Yaras , M. I. , and Grosvernor , A. D. , 2003 , “ Evaluation of One- and Two-Equation Low-Re Turbulence Models. Part I—Axisymmetric Separating and Swirling Flow ,” Int. J. Numer. Methods Fluids , 42 ( 12 ), pp. 1293 – 1319...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Appl. Mech. June 2014, 81(6): 061011.
Paper No: JAM-13-1424
Published Online: March 6, 2014
... axisymmetric grid) and unsteady (using 3D grid) simulations are carried out for an axisymmetric geometry. The two-equation standard k-ε turbulence model with two-layer zonal model for near wall treatment is used in steady simulations, whereas unsteady simulations are carried out using the DES model...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Appl. Mech. September 2012, 79(5): 051014.
Published Online: June 29, 2012
...-Algeria) for providing the LDV data and for the inspiring discussions. References 1 Janicka , J. , and Sadiki , A. , 2005 , “ Large Eddy Simulation of Turbulent Combustion Systems ,” Proc. Combust. Inst. , 30 , pp. 537 – 547 . 10.1016/j.proci.2004.08.279 2 Navarro-Martinez...
Journal Articles
Publisher: ASME
Article Type: Special Section: Computational Fluid Mechanics And Fluid–Structure Interaction
J. Appl. Mech. January 2012, 79(1): 010909.
Published Online: December 13, 2011
...-Uniform Rational B-splines) basis functions which have been proven to be highly accurate in LES of turbulent flows (Bazilevs, Y., et al. 2007, Comput. Methods Appl. Mech. Eng., 197 , pp. 173–201). LC consists of stream-wise vortices in the direction of the wind acting as a secondary flow structure...
Journal Articles
Publisher: ASME
Article Type: Special Section: Computational Fluid Mechanics And Fluid–Structure Interaction
J. Appl. Mech. January 2012, 79(1): 010910.
Published Online: December 13, 2011
...-rectifying turbine in the sense that it maintains the same direction of rotation as the airflow changes direction. The blades of the turbine are symmetrical, and here we consider straight and swept blades, both with constant chord. The turbulent flow physics involved in the complex, unsteady flow is governed...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Appl. Mech. March 2010, 77(2): 021020.
Published Online: December 21, 2009
... with big space coherence. In the opposite, the results obtained with the fine pore plate show a flow close to a fully developed turbulent channel flow. The comparison of the aerodynamic field with computational simulations based on a Reynolds-averaged Navier-Stokes (RANS) model underlines the difficulties...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Appl. Mech. November 2009, 76(6): 061005.
Published Online: July 23, 2009
... phase effects and using two-way coupling method, simulation accuracy noticeably has been improved. Three models, the k − ε model, the Reynolds stress model (RSM) without considering air core, and Reynolds stress turbulence model with volume of fluid multiphase model for simulating air core, were...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Appl. Mech. July 2008, 75(4): 044501.
Published Online: May 13, 2008
...Rafik Absi The semitheoretical function of Nezu and Nakagawa (1993, Turbulence in Open-Channel Flows, A. A. Balkema, ed., Rotterdam, The Netherlands) for the turbulent kinetic energy k is valid only where local equilibrium is a good approximation. From an estimation of the difference between...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Appl. Mech. March 2008, 75(2): 021019.
Published Online: February 27, 2008
..., surface pressure distributions, and streamline plots are calculated for circular, plane, and annular impinging jets. The models show excellent agreement with existing experimental results in both laminar and turbulent conditions and for different Reynolds numbers. A particular solution of this equation...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Appl. Mech. May 2006, 73(3): 469–473.
Published Online: January 17, 2006
...L. G. Margolin; P. K. Smolarkiewicz; A. A. Wyszogradzki We describe a series of computational experiments that employ nonoscillatory finite volume methods to simulate the decay of high Reynolds number turbulence. These experiments cover a broad range of physical viscosities and numerical...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Appl. Mech. May 2006, 73(3): 368–373.
Published Online: November 10, 2005
... turbulence to SGS portion. Thus the procedure is applied to the production term in the transport equation of K SGS , while the eddy viscosity in the filtered equation of motion is determined indirectly through K SGS . The statistically derived model for K SGS equation is adopted for the basis of our...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Appl. Mech. May 2006, 73(3): 374–381.
Published Online: November 9, 2005
... elements in the first half of the test section. The smallest grid spacing was approximately 32 μ m near the walls, and in the shear layers close to the annular inlet into the test section. Unsteady velocities corresponding to turbulent pipe flow, and turbulent annular swirling flow, from...
Journal Articles
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Appl. Mech. May 2006, 73(3): 461–468.
Published Online: November 6, 2005
... and the spatial gradients of the flow field decrease in time. This late stage of Richtmyer-Meshkov mixing layers is studied from the viewpoint of self-similarity. Analogies with weakly anisotropic turbulence suggest that both the bubble-side and spike-side widths of the mixing layer should evolve as power-laws...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Appl. Mech. May 2006, 73(3): 397–404.
Published Online: November 4, 2005
... is modeled based on scaling laws. The resulting generalized two-equation turbulence model is validated for several benchmark turbulent flows with swirl and curvature. Swirling flows are those whose mean streamlines are roughly helical, i.e., flows with a non-negligible component of azimuthal (swirling...