Numerical modelling of flows
THE STUDY OF DYNAMIC STALL AND URANS CAPABILITIES ON MODELLING PITCHING AIRFOIL FLOWS
... the numerical analysis for the dynamic stall was studied for five turbulence models: the Baldwin-Lomax algebraic model; the Renormalization Group Theory (RNG) based algebraic model; the half-equation Johnson-King ...
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PHASE CHANGE MODELLING FOR NON-ISOTHERMAL FLOWS: A MATHEMATICAL, NUMERICAL AND COMPUTATIONAL MODEL FOR PURE SUBSTANCES
... a numerical imbalance between the pressure gradient and the related surface tension force (FRANCOIS et ...presence of spurious currents has been extensively observed by researchers since CSF conception, to ...
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J. Braz. Soc. Mech. Sci. & Eng. vol.26 número3
... bubbly flows occur in channels of non- circular cross ...cross-section of channels influences the transport ...amount of experimental data, modelling and analysis effort focusing the ...
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Physically-based modelling of granular flows with Open Source GIS
... angle of internal friction, and δ is the bed friction an- ...elongation of the flowing mass, passive stress rates (subscript pass) are connected to local compacting – it depends on ac- celeration or ...
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NUMERICAL MODELLING OF COMPOUND CHANNEL FLOW
... secondary flows are accurately simulated and the distribution of mean primary velocity and the wall shear stress are also accurately ...choice of the turbulence ...incapable of producing ...
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Modelling debris flows down general channels
... debris flows on an inclined surface merging into a horizontal run-out zone or encountering an obstacle when the velocity becomes subcrit- ical from its supercritical ...formation of shocks in debris flow ...
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Firedrake-Fluids v0.1: numerical modelling of shallow water flows using a performance-portable automated solution framework
... ness of Firedrake-Fluids and its ability to accurately simulate physical ...simulation of dam breaching, and tidal flow dynamics over different seabed ...
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Numerical modelling of large landslides stability and runout
... Abstract. Modelling of flow-like landslides is one of the possible approaches that can be used to simulate landslide instability and flow ...runout of mass movements characterised by very ...
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UNIVERSIDADE DE BRASÍLIA FACULDADE DE TECNOLOGIA DEPARTAMENTO DE ENGENHARIA CIVIL E AMBIENTAL MICROSTRUCTURAL-BASED APPROACH TO THE INTERPRETATION OF CLAYS AND TRANSITIONAL SOILS
... pores of these specimens are due to the non-contact, non- parallel arrangement), while the difference between the reconstituted and the remoulded specimens is the number of pores, since there is no ...
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GIS as a tool to aid pre- and post-processing of hydrodynamic models. Application to the Guadiana estuary
... developers of coupled hydrodynamic GIS applications connecting model and GIS with some pre-processing functions were aimed at providing simple and user- friendly interface to make the model execution more ...
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Modelling Propelling Force in Swimming Using Numerical Simulations
... accuracy of numerical simulations results, this numerical tool has been validated as being feasible in modelling complicated biological fluid dynamics, through a series of stepwise ...
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Numerical Simulation of Non-linear Elastic Flows with a General Collocated Finite-Volume Method
... inspection of those contours shows that an element of fluid is subjected to the stress fields schematically outlined in ...components of the stress tensor for the Newtonian and the viscoelastic fluid ...
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Explicit and implicit approach of sensitivity analysis in numerical modelling of solidification
... Keywords: Application of Information Technology to the Foundry Industry: Solidification Process: Numerical Tcchniqucs: Sensitivity Analysis; Borzndary Elcmcnt Mcthod.. Introd[r] ...
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Effect of self-stratification on sediment diffusivity in channel flows and boundary layers: a study using direct numerical simulations
... trend of decrease of sediment diffusivity with increase in stratification was ...set of Coleman’s (1986) experiments was used; it would be interesting to repeat the calculations using data from the ...
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J. Braz. Soc. Mech. Sci. & Eng. vol.34 número4
... details of the fluid flows. The Lagrangian nature of the SPH method facilitates the modeling of the free surface ...different numerical features of 3D-SPH are probed to find a ...
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Analytic-numerical method of determining the freezing front location
... modeling of thermal processes combined with the reversible phase transitions of type: solid phase – liquid phase leads to formulation of the parabolic boundary problems with the moving ...Solution ...
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Unified formulation for URANS and LES in DxUNSp code
... estimate of 60% efficiency for the 64 processors ...the numerical treatment is made using ...minimum of all locally computed time steps) with a time step around ...
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Numerical Investigation of Nozzle Geometry Effect on Turbulent 3-D Water Offset Jet Flows
... distribution of wall shear stress were provided in the recirculation and reattachment ...ratio of curvature strain rate to shear strain rate, they also stated that flow curvature probably has a large effect ...
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Numerical Modelling of Steel Beam-Columns in Case of Fire - Comparisons with Eurocode 3
... column at elevated temperature. using the material properties of Eurocode 3. The numerical resul!s have beell compared with those obtained with the Eurocode 3. Key words: [r] ...
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J. Braz. Soc. Mech. Sci. & Eng. vol.32 número3
... laws of nature peculiar to ...those of mechanics, thermodynamics and chemistry (Sutton and Biblarz, ...purpose of converting the chemical energy stored in the propellants into kinetic energy to ...
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