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We have revisited several interesting questions on how the rapidity-odd directed flow is developed in relativistic $^{197}$Au+$^{197}$Au collisions at $\sqrt{s_{NN}}$ = 200 and 39 GeV based on a multiphase transport model. As the partonic…

核理论 · 物理学 2017-12-04 Chong-Qiang Guo , Chun-Jian Zhang , Jun Xu

The transverse-momentum integrated elliptic flow of charged particles at midrapidity, $v_2$(charged), and that of identified hadrons from Au+Au collisions are computed in a wide range of incident energies 2.7 GeV $\le \sqrt{s_{NN}}\le$ 39…

核理论 · 物理学 2015-03-05 Yu. B. Ivanov , A. A. Soldatov

The time evolution of pseudorapidity distributions of produced charged hadrons in d+Au collisions at sqrt(s_NN) = 200 GeV is investigated. Results of a nonequilibrium-statistical Relativistic Diffusion Model with three sources are compared…

高能物理 - 唯象学 · 物理学 2008-11-26 Georg Wolschin , Minoru Biyajima , Takuya Mizoguchi

Given a finite sequence of times $0<t_1<...<t_N$, we construct an example of a smooth solution of the free nonstationnary Navier--Stokes equations in $\R^d$, $d=2,3$, such that: (i) The velocity field $u(x,t)$ is spatially poorly localized…

偏微分方程分析 · 数学 2009-07-17 Lorenzo Brandolese

Directed flow of deuterons, tritons, $^3$He, and $^4$He is studied in Au+Au collisions at a beam momentum of about 10.8 $A$ GeV/c. Flow of all particles is analyzed as a function of transverse momentum for different centralities of the…

We report the results of a complete modal and nonmodal linear stability analysis of the electrohydrodynamic flow (EHD) for the problem of electroconvection in the strong injection region. Convective cells are formed by Coulomb force in an…

流体动力学 · 物理学 2015-06-24 Mengqi Zhang , Fulvio Martinelli , Jian Wu , Peter J. Schmid , Maurizio Quadrio

Correlations in the hadron distributions produced in relativistic Au+Au collisions are studied in the discrete wavelet expansion method. The analysis is performed in the space of pseudorapidity (|eta| < 1) and azimuth (full 2 pi) in bins of…

核实验 · 物理学 2008-11-26 the STAR Collaboration , J. Adams

A systemical analysis of the initial fluctuation effect on the collective flows for Au+Au at 1$A$ GeV has been presented in the framework of Isospin-dependent Quantum Molecular Dynamics model (IQMD), and a special focus on the initial…

核理论 · 物理学 2015-06-23 Jia Wang , Yu-Gang Ma , Guo-Qiang Zhang , Wen-Qing Shen

Comparative Analysis on temporal and spatial behaviors of droplets produced in a converging co-flow has been investigated when interchanging of phases, NaAlg (non-Newtonian) and soybean oil (Newtonian). The Carreau model is promoted and…

流体动力学 · 物理学 2023-11-14 J. S. Zhang , H. H. Song , Z. L. Wang

We investigate the excitation function of quark-gluon plasma formation and of directed in-plane flow of nucleons in the energy range of the BNL-AGS and for the E(Lab)=40AGeV Pb+Pb collisions performed recently at the CERN-SPS. We employ the…

核理论 · 物理学 2009-10-31 J. Brachmann , A. Dumitru , H. Stöcker , W. Greiner

The harmonic flow coefficients of light nuclei and hypernuclei in Au+Au collisions at $\sqrt{s_\mathrm{NN}}=3$ GeV are investigated using the Ultra-relativistic Quantum Molecular Dynamics transport model. For the Equation-of-State we employ…

A generic property of a first-order phase transition in equilibrium, and in the limit of large entropy per unit of conserved charge, is the smallness of the isentropic speed of sound in the ``mixed phase''. A specific prediction is that…

The transverse momentum dependent nuclear modification factors (NMF), namely $R_{CP}$, is investigated for protons produced in Au + Au at 1$A$ GeV within the framework of the isospin-dependent quantum molecular dynamics (IQMD) model. It is…

核理论 · 物理学 2014-05-07 M. Lv , Y. G. Ma , G. Q. Zhang , J. H. Chen , D. Q. Fang

We use molecular dynamics simulations to study the behavior of a compressible Lennard-Jones fluid in simple shear flow in a two-dimensional nanochannel. The system is equilibrated in the fluid phase close to the triple point at which gas,…

软凝聚态物质 · 物理学 2017-03-31 Madhu Priya , Yitzhak Rabin

We consider reaction-diffusion equations with combustion-type non-linearities in two dimensions and study speed-up of their pulsating fronts by general periodic incompressible flows with a cellular structure. We show that the occurence of…

偏微分方程分析 · 数学 2009-11-13 Andrej Zlatos

Molecular dynamics simulations are used to simulate the thermal properties of a model fluid containing nanoparticles (nanofluid). By modelling transient absorption experiments, we show that they provide a reliable determination of…

材料科学 · 物理学 2015-06-25 Mihail Vladkov , J. -L. Barrat

While many physics-based closure model forms have been posited for the sub-filter scale (SFS) in large eddy simulation (LES), vast amounts of data available from direct numerical simulation (DNS) create opportunities to leverage data-driven…

流体动力学 · 物理学 2025-05-06 Graham Pash , Malik Hassanaly , Shashank Yellapantula

We present transverse momentum distributions of charged hadrons produced in Au+Au collisions at sqrt(s_NN) = 200 GeV. The spectra were measured for transverse momenta p_T from 0.25 to 4.5 GeV/c in a rapidity range of 0.2 < y_pi < 1.4. The…

核实验 · 物理学 2008-11-26 B. B. Back , PHOBOS Collaboration

The dispersion of solute in porous media shows a non-linear increase in the transition from diffusion to advection dominated dispersion as the flow velocity is raised. In the past, the behavior in this intermediate regime has been explained…

流体动力学 · 物理学 2014-09-23 B. Ph. van Milligen , P. D. Bons

Using a (3+1)-D hydrodynamic model CLVisc, we study the directed flow ($v_{1}$) of light hadrons produced in Au+Au, Ru+Ru and Zr+Zr collisions at $\sqrt{s_{\textrm{NN}}}=$ 200 GeV. The evolution of tilted energy density, pressure gradient…

核理论 · 物理学 2023-12-11 Jing Jing , Ze-Fang Jiang , C. B. Yang , Ben-Wei Zhang