[PDF] Top 20 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 ...decomposition and the paper discusses how to specify the amplitude of incoming waves ... Voir le document complet

... expression of the incoming wave L 5 ( ...the inlet from the computation domain must be evaluated. In the case of an outlet, Polifke et ...used a method called CBF (characteris- tics based ... Voir le document complet

... 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 these ... Voir le document complet

... 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 these ... Voir le document complet

... legend of graph (a). The set of obtained curves encloses the experimental data, and in particular, the amplitude and phase of the oscillations are captured in graphs (b), (c), ... Voir le document complet

... " # n$%&'on()*+,- !pq"#$%,'rs tKO#$9Uu"*5C5'"4JK&-)#ZgW0$!SD$!5'"7/08v$()D+2<Y3D1p$%M034<2$!Ww"7)x+;O#$ 8Q$!+;O#"#WyW0$(1V&'SD$!WzM*` ... Voir le document complet

... friction, but at the cost of greatly increasing mixing in the outer boundary layer, which results in large pressure drag. Lower overall losses will be given by a less severe [r] ... Voir le document complet

... 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 ... Voir le document complet

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... step of the bubble oscillation before the ...incompressible and that the bubble pressure is spatially constant. The temporal value of the pressure in the bubble can then be imposed as a ... Voir le document complet

... 6.2 Steady viscous flow around a cylinder As second test-case, we consider the classical problem of the flow around a cylinder, for a Reynolds number Re = 40 and Mach ... Voir le document complet

... 3d compressible Navier- Stokes equations, we derive a 2d shallow water model where the acoustic waves – that can be seen as pseudo-compressibility effects – are ...Then a numerical ... Voir le document complet

... is a multi-disciplinary open access archive for the deposit and dissemination of sci- entific research documents, whether they are pub- lished or ...teaching and research institutions ... Voir le document complet

... materials of interest can be described using continuum me- chanics: this implies that there is a representative volume element ...scale of the global flow, but large enough so that one can define: ... Voir le document complet

... In terms of this refinement, we also derive sufficient conditions in order that the product of generalized functions is well defined.. Thesis Supervisor: Alberto P.[r] ... Voir le document complet

... formulation of control system (1) and contains the first main result, namely the well-posedness of the closed- loop ...associated with (1) and states an exponential stability result ... Voir le document complet

... scalar and when the limi- ting states p ± are ordered, say p + > p − , Definition ...that of “wave-like” solutions given in ...uniqueness and stability results of generalized almost ... Voir le document complet

... is a multi-disciplinary open access archive for the deposit and dissemination of sci- entific research documents, whether they are pub- lished or ...teaching and research institutions ... Voir le document complet

... codes for wave propagation and cer- tain observational ...irregularities, with sharp depth variations; another limitation is the neglect of coupling to the elastic ocean ...elasticity ... Voir le document complet

... 5.2 those three curves (the dashed black curve for normal Rayleigh wave, the solid black curve for modulated Rayleigh wave on granular crystal, and the solid blue line for wavegu[r] ... Voir le document complet