[PDF] Top 20 A characteristic inlet boundary condition for compressible, turbulent, multispecies turbomachinery flows
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A characteristic inlet boundary condition for compressible, turbulent, multispecies turbomachinery flows
... r a c t A methodology to implement non-reflecting boundary conditions for turbomachinery applications, based on characteristic analysis is described in this ...paper. For ... Voir le document complet
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A characteristic inlet boundary condition for compressible, turbulent, multispecies turbomachinery flows
... r a c t A methodology to implement non-reflecting boundary conditions for turbomachinery applications, based on characteristic analysis is described in this ...paper. For ... Voir le document complet
17
A generalized non-reflecting inlet boundary condition for steady and forced compressible flows with injection of vortical and acoustic waves
... NRI-NSCBC condition performs better than the standard NSCBC approach: it allows to use large values for the relaxation coefficient K and to obtain non-drifting mean values and non reflective capabilities ... Voir le document complet
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Compatibility of Characteristic Boundary Conditions with Radial Equilibrium in Turbomachinery Simulations
... to a totally reflecting outlet in terms of acoustic waves. For RANS simulations, which do not capture acous- tic anyway, this is not an issue but it becomes a problem for ...of ... Voir le document complet
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A generalized non-reflecting inlet boundary condition for steady and forced compressible flows with injection of vortical and acoustic waves
... describes a new boundary condition for subsonic inlets in compressible flow ...uses characteristic analysis based on wave decomposition and the paper discusses how to specify the ... Voir le document complet
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Compatibility of Characteristic Boundary Conditions with Radial Equilibrium in Turbomachinery Simulations
... to a totally reflecting outlet in terms of acoustic waves. For RANS simulations, which do not capture the acoustic anyway, this is not an issue, but it becomes a problem for ...of ... Voir le document complet
12
Coupling of time integration schemes for compressible unsteady flows
... product. For RANS simulations, the previous equations are modified according to an averaging procedure that splits the unknowns into averaged quantities and ...of a turbulence model. A turbulence ... Voir le document complet
182
A low-diffusion self-adaptive flux-vector splitting approach for compressible flows
... is a first-order discrete approximation of the incompressible space characterized by a divergence-free velocity field and a zero pressure gradient at zeroth and first order with respect to the Mach ... Voir le document complet
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Curved Interface Reconstruction for 2D Compressible Multi-material Flows
... [1], a new reconstruction method which ensures continuity of the interface and preserves volume fractions has been ...as a starting point for the pre- sented ...of a suitable energy functional ... Voir le document complet
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Implicit Upwind Schemes for Low Mach Number Compressible Flows
... Unite´ de recherche INRIA Lorraine, Technopoˆle de Nancy-Brabois, Campus scientifique, 615 rue du Jardin Botanique, BP 101, 54600 VILLERS LE`S NANCY Unite´ de recherche INRIA Rennes, Iri[r] ... Voir le document complet
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Phase Change Simulation for Isothermal Compressible Two-Phase Flows
... M-scheme for large values of ˜ λ to MT- scheme appromixate ...MT-schemes for the variable z and the pressure in the case of the piston ...use a ˜ λ values ranging from 10 to 10 6 . While for ... Voir le document complet
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Inlet and Outlet Open Boundary Conditions for Incompressible Navier-Stokes Equations
... new boundary condition introduced here allows to construct a flow driven by forces inside the geometry and by a given flow rate taking into account interactions with the outer ...domain. ... Voir le document complet
10
Pressure Boundary Conditions for Blood Flows
... aortic flows. Typically a large artery like the aorta has a radius of 1cm and a length of 5 to 10 centimeters; the thickness of the aortic wall is around ...fixes a typical speed ... Voir le document complet
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A Lagrangian stochastic model for rod orientation in turbulent flows
... Introduction Turbulent flows with suspended particles of non spheri- cal shape are a common occurrence in many industrial and natural ...highly turbulent and has an effect on the rotational ... Voir le document complet
8
A Simple Finite-Volume Method for Compressible Isothermal Two-Phase Flows Simulation
... derive a primitive system using classical mechanics arguments: we first use a Least Action Principle to derive the conservative part of the ...account for the fact that mass transfer and pres- sure ... Voir le document complet
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Slip Boundary Conditions for the Compressible Navier–Stokes Equations
... slip boundary conditions in a precise way on the basis of the Boltzmann equation and providing the formulas for time-dependent problems with arbitrarily moving boundaries that can be used immedi- ... Voir le document complet
46
Time-domain harmonic balance method for aerodynamic and aeroelastic simulations of turbomachinery flows
... France A time-domain Harmonic Balance method is applied to simulate the blade row interactions and vibrations of state- of-the-art industrial turbomachinery ...is a time-integration scheme that turns ... Voir le document complet
12
A numerical approach for a semilinear parabolic equation with a nonlocal boundary condition
... to a nonlocal Robin BC has been studied in ...problem for nonlocal (Dirichlet or Robin) BC is the special character of the algebraic matrix obtained by the full ...needs a special solver to get ... Voir le document complet
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An implicit method for turbulent boundary layers simulation
... Unite´ de recherche INRIA Lorraine, Technopoˆle de Nancy-Brabois, Campus scientifique, 615 rue du Jardin Botanique, BP 101, 54600 VILLERS LE` S NANCY Unite´ de recherche INRIA Rennes, Ir[r] ... Voir le document complet
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A sharp immersed boundary method based on penalization and its application to moving boundaries and turbulent rotating flows
... from a RANS k − ϵ model and a GGI method to handle the rotating zone and a hy- brid ...used for the stationary zone and tetrahedral cells ranging from 2 mm in the impeller discharge re- gion ... Voir le document complet
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