Results 91 to 100 of about 61,954 (317)

Direct Numerical Simulation of Compressible Turbulent Flows

, 2010
This paper reviews the authors' recent studies on compressible turbulence by using direct numerical simulation (DNS), including DNS of isotropic (decaying) turbulence, turbulent mixing-layer, turbulent boundary-layer and shock/boundary-layer interaction.
马延文, 傅德薰, Li, XL (reprint author), Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China., 李新亮, 梁贤   +4 more
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Eulerian Scheme for 3D multimaterials [PDF]

, 2014
This paper is devoted to the 3D extension of a sharp interface multimaterial method. We present preliminary results for 3D stiff cases of shock air/helium/water interaction and impacts of projectiles on elastic bodies immersed in ...
de Brauer, Alexia, BRAUER, Alexia, BRAUER (DE), Alexia, MILCENT, Thomas, IOLLO, Angelo   +4 more
core  

Anisotropic three-dimensional MHD turbulence

, 1996
Direct spectral method simulation of the three-dimensional magnetohydrodynamics (MHD) equations is used to explore anisotropy that develops from initially isotropic fluctuations as a consequence of a uniform applied magnetic field.
Matthaeus, William H., Oughton, Sean, Roberts, D. Aaron, Ghosh, Sanjoy, William H. Matthaeus, D. Aaron Roberts, Sanjoy Ghosh, Sean Oughton   +7 more
core   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Direct Numerical Simulation of Compressible Isotropic Turbulence [PDF]

, 2002
Direct numerical simulation (DNS) of decaying compressible isotropic turbulence at turbulence Mach numbers of M-r = 0.2-0.7 and Taylor Reynolds numbers of 72 and 153 is performed by using the 7th order upwind-biased difference and 8th order center ...
Li XL(李新亮), Fu DX(傅德薰), Ma YW(马延文), Li, XL (reprint author), Chinese Acad Sci, LNM Inst Mech, Beijing 100084, Peoples R China.   +3 more
core  

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Derivation of an adjoint consistent discontinuous Galerkin discretization of the compressible Euler equations

, 2006
Adjoint consistency - in addition to consistency - is the key requirement for discontinuous Galerkin (DG) discretizations to be of optimal order in L2 as well as measured in terms of target functionals.
Hartmann, Ralf
core  

Low-mach number effects and late-time treatment of Richtmyer-Meshkov and Rayleigh-Taylor instabilities [PDF]

, 2011
The Richtmyer-Meshkov instability appears when the mixing between two fluids is triggered by the passage of a shock wave. It occurs in a range of different applications, such as astrophysics, inertial confinement fusion and supersonic combustion.
Oggian, Tommaso
core  

Wake Behavior behind Turbine Cascades in Compressible Two-Dimensional Flows

International Journal of Rotating Machinery, 2005
The goal of the paper is to describe wake parameters of wakes from turbine cascades in compressible flows especially in planes where the leading edge of the following blade row would be located. Data from experiments with turbine cascades in compressible
Rainer Kurz
doaj   +2 more sources