kutta discontinuous galerkin method for multi phase compressible flows

... and discontinuous Galerkin methods Continuous Galerkin (CG) methods are unstable for Stokes flows in the use of equal-order polynomials for the basis of the velocity and pressure In contrast, discontinuous ... Cockburn et al [11] for solving Stokes equations using local discontinuous Galerkin methods Backward difference formulations or diagonally implicit Runge -Kutta methods can be used for the time derivative ... Chapter Chapter Hybridizable Discontinuous Galerkin Method We discuss in detail the hybridizable discontinuous Galerkin (HDG) method proposed by Nguyen et al [27] In the HDG method, the gradient, velocity,...

Ngày tải lên: 10/09/2015, 15:51

... fully discrete finite element method with the stabilized mixed discontinuous Galerkin methods for the incompressible miscible displacement problem in porous media For the pressure equation, we ... A: Mixed discontinuous Galerkin methods for Darcy flow J Sci Comput 22, 119–145 (2005) doi:10.1007/s10915-004-4150-8 Sun, S, Wheeler, MF: Discontinuous Galerkin methods for coupled flow and reactive ... Runge -Kutta discontinuous Galerkin methods for conservation laws V: Multidimensional systems J Comput Phys 144, 199–224 (1998) 13 Arnold, D, Brezzi, F, Cockburn, B, Marini, D: Unified analysis of discontinuous...

Ngày tải lên: 20/06/2014, 22:20

... note that for the overall system, the first choice should be to reinforce two tie lines instead of increasing the generating capacity of the multi- area system coNcLusIoNs A new method for multi- area ... Lee, "Multi- Area Reliability - A New Approach", IEEE Transactions on Power Systems, Vol PWRS-2, NO , p848-855, NOV 1987 G.C Olivera, S.H.F Cunha and M.V.F Pereira, "A Direct Method for Multi- Area ... Approach for Multi- Area Reliability Calculations", IEEE Transactions on Power Systems, Vol 5, No 3, Aug 1990 R Billinton and L Gan, "A Monte Carlo Simulation Model for Adequacy Assessment of Multi- Area...

Ngày tải lên: 03/01/2014, 19:35

... (AMR) (for 2D simulations, due to Ding and Shu, 2006), non-uniform mesh (for 3D simulations), and combination of AMR mesh and uniform mesh (for 3D simulations) (4) The LDFD solver for incompressible ... St for side-by-side cylinders T=3D for Re=100 107 Table 4.4 C D , C L and St for side-by-side cylinders T=3D for Re=200 107 Table 4.5 C D , C L and St for side-by-side cylinders T=4D for ... Domain-Free Discretization method DQ Differential Quadrature method FD Finite Difference method FE Finite Element method FV Finite Volume method LDFD Local Domain-Free Discretization method LDFD-IBM Local...

Ngày tải lên: 09/09/2015, 10:08

... of the very popular methods because of its simplicity and adequate performance [26] The sensing function of our proposed method is based on this energy detection method This method detects unknown ... proposed routing method and the convention routing method (AODV) is calculated Finally, we calculate the throughput performance of the proposed routing method and the conventional method 4.1 Propagation ... dBm Therefore, in this paper we select -92 dBm as the appropriate sensing threshold, CSth for the proposed method With lower sensing level, the proposed and the conventional method performs the...

Ngày tải lên: 20/06/2014, 22:20

... evaluate the accuracy and performance of the proposed algorithms Keywords: multi- term FDEs; multi- point boundary conditions; tau method; collocation method; direct method; shifted Legendre polynomials; ... Section 3, we consider the SLT method for the multi- term FDEs subject to multi- point boundary conditions, and in Section 4, we construct an algorithm for solving linear multi- order FDEs with variable ... (quadrature-tau) method is used to treat the variable coefficient terms and right-hand side, (see for instance, Funaro [17] In fact, Doha et al [37] used a quadrature Jacobi dual-PetrovGalerkin method for solving...

Ngày tải lên: 21/06/2014, 17:20

... Rothe Galerkin s method for a nonlinear integrodifferential equation Abderrazek Chaoui∗ and Assia Guezane-Lakoud ... schemes for solving nonlinear initial boundary value problem with Volterra operator Existence, uniqueness of solution as well as some regularity results are obtained via Rothe Galerkin method ... results are obtained via Rothe Galerkin method Keywords: Rothe’s method; a priori estimate; integrodifferential equation; Galerkin method; weak solution Mathematics Subject Classification 2000: 35k55;...

Ngày tải lên: 21/06/2014, 17:20

... (QP) 79 Phase II: An inexact proximal augmented Lagrangian method for convex composite quadratic programming 4.1 89 A proximal augmented Lagrangian method of multipliers 90 ... ciently, we introduce a two phase augmented Lagrangian method, with Phase I to generate a reasonably good initial point and Phase II to obtain accurate solutions fast In Phase I, we carefully examine ... solution w to problem (1.3) Fortunately, it causes no problem in Phase I However, this unboundedness becomes critical in designing our second phase algorithm Therefore, in Phase II, we will take W...

Ngày tải lên: 09/09/2015, 08:11

... Semi-implicit method 17 1.3.3 Consistent Particle Method 20 1.4 Studies on incompressible two -phase flows 24 1.5 Studies on incompressible -compressible two -phase flows ... Mesh-based methods for fluid-mechanics problems 1.2.1 Finite Difference Method 1.2.2 Finite Volume Method 1.2.3 Finite Element Method 1.3 Particle methods for fluid-mechanics ... when particles are sparse and nonuniformly spaced These two improvements lead to the incompressible two -phase CPM (I-2P-CPM) for incompressible two -phase flows characterized by high density ratio...

Ngày tải lên: 09/09/2015, 08:11

... 1.2 Modeling of Multiphase Flow 1.2.1 Navier-Stokes solvers for multiphase flow simulation 1.2.2 Lattice Boltzmann methods for multiphase flow simulation 1.2.3 Challenges faced by phase- field LBM ... the phase- field method and lattice Boltzmann method considering the scope of this thesis 1.2.1 Navier-Stokes solvers for multiphase flow simulation In direct numerical simulation of multiphase flows, ... stencil adaptive phase- field LBM for multiphase flow simulation 12 1.2.3.2 LBM for multiphase flow with density contrast Besides accuracy and efficiency balance, another major issue for phase- field...

Ngày tải lên: 10/09/2015, 09:06

... second order) in FVM So, a new method, the discontinuous Galerkin method, or discontinuous finite element method, was developed in recent years It is a more general FEM for conservation laws and combines ... coefficients method This idea should be very useful for developing LB models for compressible flows 11 1.3.2 Current LB models for compressible flows As introduced in the last subsection, the polynomial forms ... derived for compressible/ incompressible viscous/inviscid flows with this method Finite volume method which can provide numerical dissipation to capture shock waves and other discontinuities in compressible...

Ngày tải lên: 14/09/2015, 14:01

... Phase Shift Keying (BPSK)) b) Four phase (Quadrature Phase Shift Keying (QPSK)) c) Eight phase (8-PSK) d) Sixteen phase (16-PSK) e) Sixteen Quadrature Amplitude Modulation (16-QAM) A Binary Phase ... Differential phase shift keying (DPSK) is a form of phase modulation that transmits the data by changing the phase of the carrier wave As mentioned for QPSK and BPSK, there is an ambiguity of phase ... the study and methodology were formed for this research, as follows: Review of previous literature pertaining to available techniques of channel estimation for the OFDM system for solving the...

Ngày tải lên: 26/05/2013, 21:28

... should like to mention at this point that all music presented for study on these pages is original and has been created especially for the guitar EACH composition has been designed to advance ... explained If further information is desired, some very excellent music dictionaries in soft cover editions can be obtained at a small cost.) I feel, however, that with this method, (as with all ... possible Fingering and counting indications have been kept at what I consider a sensible minimum #2 For the gradual development of dexterity in BOTH hands This is the physical part of learning to...

Ngày tải lên: 16/08/2013, 08:28

... SECTION MOST IMPORTANT FOR NOW IS THE PHYSICAL ABILITY TO PERFORM THEM AND EVENTUAL MEMORIZATION OF ALL FORMS, CHORD TYPES AND ROOT LOCATIONS NOTE THAT THESE ARE THE SAME FORMS AS THOSE SHOWN ... This book is a continuation of Volume I, Modern Method for Guitar Most of the terms and techniques are directly evolved from material presented there For example, the entire fingerboard is covered ... inquisitive student and maybe shed some light into the mysterious workings of music for guitar players in general As before, good luck and have fun William G Leavitt ALL SCALES (MAJ and MIN etc )...

Ngày tải lên: 16/08/2013, 08:28

... sludge Nevertheless, quantitative PCR method for Candidatus ‘Accumulibacter phosphatis’ has not been developed yet In this study, quantitative PCR method for Candidatus ‘Accumulibacter phosphatis’ ... quantitative PCR was 1.0 % for Ct value and 11 % for the calculated copy numbers, respectively (n=6) Variation in quantitative PCR only was 0.78 % for Ct value and 7.5 % for the calculated copy ... conditions included a pre-incubation step of at 94 °C followed by 35 cycles of 94 °C for 15 sec, 57 °C for 20 sec, and 68 °C for 15 sec - 38 - Journal of Water and Environment Technology, Vol.5, No.1,...

Ngày tải lên: 05/09/2013, 09:38

... checklist for noise inspection can be used with a high reliance before of noise measuring without necessity to use the instrument in workplaces Therefore, this method is a proper rapid method for exploiting ... screening is a common method for early investigations for separation of study popular (8-12) The Propose of this study was to submit a simply scientifically screening method for inspection of noise ... investigation was compared The suggested method can be used for recognition step of noise assessment in large scale investigations This method is a proper way for exploiting and reducing the expenses...

Ngày tải lên: 05/09/2013, 13:23

... convection Multiple species are considered in the gas phase only, and the species conservation equation in multicomponent, multi- phase flow can be written in the following expression for species ... transfer in the form of evaporation & & m phase > and condensation m phase < is assumed, so that the mass balance equations for both ( ) ( ) phases are; & ∇ ⋅ ((1 − sat )ρ g εu g ) = m phase (8) & ... relative permeability accounts for the reduction in pore space available for one phase due to the existence of the second phase [9] The momentum equation for the gas phase inside the gas diffusion...

Ngày tải lên: 05/09/2013, 14:58

... similar conditions to the ones established for the semi-indirect evaporative recover made of ceramic pipes introduced before This test has been performed for outside air temperature of 40 C, 18 ... of the adiabatic tunnel described before To clarify what has been exposed before, the evolution of an air stream originally at 25ºC and 30% of RH is described for different cases of water temperature ... comfort area defined by ASHRAE (Figure 30) As well as the other two cases, cooling is performed as a consequence of an increase in the humidity level, though in this case it is more effective for...

Ngày tải lên: 05/09/2013, 16:10

... points for maximum electrical output for an area of inch in diameter were determined However most researchers have focused on relatively small scale solar simulators in order to achieve a uniform ... 2011 [4] Standards For Simulators Can Vary Widely Solar industry, http://www.solarindustrymag.com Accessed on February 27, 2011 [5] Kohraku S and Kurokawa K., "New methods for solar cells measurement ... [8] Standard specification for direct normal spectrum solar simulation for terrestrial photovoltaic testing, ASTM standard E928, 1983, revised 1985 (American Society for Testing and Materials,...

Ngày tải lên: 05/09/2013, 16:10

... TECHNIQUES FOR THREE -PHASE VS-PWM CONVERTERS While phase voltages can be controlled independently, phase currents are determined not only by their own phase voltage, but also by those of other phases ... midpoint (when available) phase load are not connected [Fig 2(a)], phase currents depend only on the voltage difference between phases Therefore, a common term can be added to the phase voltages, thus ... capable of forcing the command current Therefore, the converter requires a sufficient supply voltage reserve to force the ac line current in the entire and load range C Basic Requirements and Performance...

Ngày tải lên: 03/01/2014, 19:45