Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 27 for “"Elliptic flow"”.
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Elliptic flow in Au+Au collisions at 200 GeV per nucleon pair
… This thesis presents measurements of the elliptic flow amplitude, v₂, in Au+Au collisions at RHIC's top center of mass energy of 200 GeV per nucleon pair. Elliptic flow is interesting as a probe of the dynamical evolution of the system formed in the collision. The elliptic flow dependences …
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Probing the Quark-Gluon Plasma properties through Heavy Quarks' dynamics: transport coefficients and elliptic flow
La Cromodinamica Quantistica (QCD) è la teoria di gauge non-abeliana che nell'ambito del Modello Standard descrive l'interazione forte fra quark e gluoni. La QCD possiede due proprietà principali: il confinamento e la libertà asintotica. A causa del confinamento quark e gluoni nella materia …
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Measurement of non-flow correlations and elliptic flow fluctuations in Au+Au collisions at RHIC
Measurements of collective flow and two-particle correlations have proven to be effective tools for understanding the properties of the system produced in ultrarelativistic nucleus-nucleus collisions at the Relativistic Heavy Ion Collider (RHIC). Accurate modeling of the initial conditions of a …
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Measurement of inclusive muon elliptic flow in pp collision at √s=13 TeV with the ALICE Experiment
… the QGP via inelastic and elastic processes. The elliptic flow v2 is one of the signatures of QGP formation. The ALICE experiment has measured its value in various heavy flavour decay channels in Pb–Pb and p–Pb collisions. Indications of non-zero v2 in pp collisions have been shown by different …
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DIRECTED AND ELLIPTIC FLOW MEASUREMENTS: A COMPARISON BETWEEN THE PARTICIPANT AND SPECTATOR PLANES IN Pb+Pb COLLISIONS AT √sNN = 5.02 TeV WITH CMS AT THE LHC
Directed and elliptic flow of unidentified charged hadrons at mid-rapidity are measured as a function of transverse momentum (pT) and pseudorapidity (η) in ultra-relativistic PbPb collisions at √sNN = 5.02 TeV with the Large Hadron Collider (LHC) at CERN. The reaction plane (RP) angle is …
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Using the ¢-meson to probe the medium created in Au+Au collisons at RHIC
… presents measurements of ¢-meson production and elliptic flow, 1,2, with the aim of probing the characteristics of the medium created in ultra-relativistic nucleus-nucleus collisions. Using the decay channel q;-+ K+ K-, high statistics measurements have been made for ¢-meson production at …
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Flow of [phi] mesons in pPb collisions at the LHC with the CMS detector
… quark number scaling effects in measurements of elliptic flow.
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Search for and studies of Quark-Gluon Plasma via dynamics and productions of heavy quarks in proton-proton and heavy ion collisions at the LHC with CMS detector
… (LHC) from 2016 to 2018 are analyzed. The elliptic flow (v2{2}) and v2{4}) for charm mesons using two- and four-particle correlation technique in lead-lead collisions at a nucleon-nucleon center of mass energy 5.02 TeV is presented. The splitting between v2{4}/v2{2} of light charged …
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Simulation of measuring bottom quark flow in heavy ion collisions using the CMS detector
… to characterize the measurement of bottom quark flow in relativistic Pb+Pb collisions using the Compact Muon Solenoid experiment. The Hydjet event generator is used to produce sample collision events at four centrality values between 0 and 12 fm. These events are processed using the simulation, …
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Anisotropic Flow Measurement in Ultra-Central Pb-Pb Collisions For Run 10 and Run 11 by ALICE
… as the Quark-Gluon Plasma (QGP). The collective flow of the system plays a critical role in establishing the equation of state of the QGP. Among different orders of azimuthal flow, the second order elliptic flow receives keen attention and will be analyzed in the ultra-central collision …
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Quantum Transport and Scale Invariance in Expanding Fermi Gases
… aspect ratios of the cloud exhibit anisotropic ``elliptic" flow with an energy-dependent shear viscosity. Tuning away from resonance, we observe conformal symmetry breaking, where $\langle{\mathbf{r}}^2\rangle$ deviates from ballistic flow. We find that $\eta$ has both a quadratic and a linear …
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Fluid flow and heat transfer in transonic turbine cascades
… to be able to understand and predict the fluid flow and heat transfer in turbine blades to enable the modifications and improvements in the design process. The use of numerical experiments for the above purposes is becoming increasingly common. The present thesis is involved with the development …
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CFD analysis and redesign of centrifugal impeller flows for rocket pumps
… objective was to reduce the circumferential exit flow distortion of the baseline impeller. Later in the study, the objective became raising the head coefficient of the impeller. The study presented in this thesis was also undertaken to demonstrate current CFD capabilities for impeller design. A …
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Computational study of 3D turbulent air flow in a helical rocket pump inducer
A computational study of the air flow in a helical rocket pump inducer has been performed using a 3-D elliptic flow procedure including viscous effects. The inlet flow is considered turbulent and fully developed. The geometric, definition of the inducer blade shape and the calculation grid are …
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Computational study of hub corner stall in an axial compressor rotor
… using a 3-D Navier-Stokes solver, the Moore Elliptic Flow Program. A one equation, q-L, transitional turbulence model was used with MEFP for closure of the transport equations. The calculation was used to study the physics and flow mechanisms affecting hub corner stall. Preprocessing and post …
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IMPACT OF THE PRE-EQUILIBRIUM STAGE OF ULTRA-RELATIVISTIC HEAVY ION COLLISIONS: ISOTROPIZATION, PHOTON PRODUCTION AND ELLIPTIC FLOWS
… of this pre-equilibrium phase on collective flows of the bulk matter and on photon observables. In the first part of this thesis we present our model of the early times dynamics of relativistic heavy ion collisions, in which an initial color-electric field decays to a particle plasma by the …
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3-D flow and performance of a rocket pump inducer at design and off-design flow rates
… using a 3-D Navier-Stokes solver, The Moore Elliptic Flow Program. Design and off-design flow rates were simulated to qualitatively and quantitatively study the effects of flow rate on the flow and performance. Several views of the results were created to aid flow visualization. The 3-D laser …
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Investigation of suction recirculation in rocket pump inducers
… studied with a Navier-Stokes solver, the Moore Elliptic Flow Program, MEFP. Two redesigns of the Rocketdyne ADP inducer are performed. The first redesign changes the hub-tip ratio from 0.3 to 0.4. The second redesign influences the leading edge tip region. This part of the blade is rounded off …
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Computational study of 3D turbulent flow in a tandem inducer/impeller rocket pump rotor
A computational study of the flow in a tandem inducer/impeller rocket pump has been performed using a 3D elliptic flow program including viscous effects. The axial inducer has four blades and the centrifugal impeller has eight main blades and sixteen splitter blades. The purpose of this thesis is …
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Flows through s-shaped annular, inter-turbine diffusers
… diffusers or swan neck ducts (SND's) provide flow continuity between the H.P. and L.P. turbine, which with diffusing of the flow allow; greater stage efficiencies to be achieved as a consequence of reducing both the stage loading and flow coefficient of the L.P. turbine. This thesis presents …
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