Heat, mass, and momentum transfer about arbitrary groups of particles

Dwyer, H. A.; Nirschl, Hermann; Kerschl, P.; Denk, V.

doi:10.1016/s0082-0784(06)80666-1

Cited by 12 publications

(4 citation statements)

References 3 publications

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“…The liquid properties were obtained from [7]; however, the liquid species mass diffusion coefficients were obtained from an assumed Lewis number and a calculated thermal diffusivity. The details of the present formulation can be found in papers by Niazmand et al [8] and Dwyer [9]. The numerical methods employed for the solution of the system of equations are second-order accurate in time and space, and they make use of a predictor-corrector scheme developed by Dwyer [5].…”

Section: Methods Of Approach and Equationsmentioning

confidence: 99%

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The use of overset meshes in particle and porous media three-dimensional flows

Dwyer

Debus

Shahcheraghi

1999

Int. J. Numer. Meth. Fluids

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Section: Methods Of Approach and Equationsmentioning

confidence: 99%

“…The first example is concerned with a group of six heptane droplets that are arranged in a plane as shown in Figure 1 [9,10]. This figure shows the mesh's plane of symmetry, i.e.…”

Section: Unsteady Heating and 6aporization Of A Droplet Groupmentioning

confidence: 99%

The use of overset meshes in particle and porous media three-dimensional flows

Dwyer

Debus

Shahcheraghi

1999

Int. J. Numer. Meth. Fluids

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“…An overset grid method (Benek et al, 1983;Steger et al, 1983;Benek et al, 1985), which is sometimes called a chimera grid method, provides a flexible and efficient spatial discretization procedure to solve a wide variety of complex problems (Belk, 1995;Burton and Eaton, 2002;Carlsson and Petersson, 2001;Dwyer, 1994;Henshaw, 1994;Kageyama and Sato, 2004). The overset grid is composed of the several meshes which cover the whole computational domain.…”

Section: Introductionmentioning

confidence: 99%

Oscillationless Explicit Method on Overset Grid for Advective Equation

Sugimura

Sakagami

2013

JAMSTEC Rep. Res. Dev.

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Characteristics of numerical errors using the overset grid method are investigated. The overset grid method has some problems with the interpolation of data between each mesh. In the case of the computing advective equation, a traveling wave passing through an interface of overlapping meshes causes numerical oscillations. The oscillations near the interface destroy the solution, and cause overflow. In order to investigate the causes of the numerical errors on the overset grid, we apply wave analysis on each component mesh. We show that phase differences between component meshes cause the numerical errors and that the accuracy of the phase velocity is quite important to compute the advective equation with less numerical errors on the overset grid. We suggest that calculations using accurate phase velocity will reduce numerical errors. We show that CIP scheme is one of the most useful schemes to represent wave propagation with high accuracy and without oscillation on the overset grid.

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“…The nonlinear, non-equilibrium, polydisperse and polykinetic characteristics of sprays pose modeling challenges that are elaborated in further detail in Section 6.2. Fully-resolved direct numerical simulation (DNS)Helenbrook and Edwards (2002);Quan et al (2009);Dwyer et al (1994) of liquid droplets in an ambient gas, wherein boundary conditions are imposed on each droplet's surface and all flow features around each droplet are fully resolved, offer a high-fidelity representation of droplet-gas inter-…”

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confidence: 99%

Direct Numerical Simulations and Analytical Modeling of Granular Filtration

Kolakaluri

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The characteristic features of sprays pose unique challenges to multiphase flow methods that are used to model and simulate their behavior. This article reviews the principal modeling challenges posed by sprays, and discusses the capabilities of different modeling approaches by classifying them according to the basis of their statistical representation and the level of closure. This provides guidelines for their comparative assessment and also a perspective on the outlook for spray modeling. Multiphase flow simulation approaches that are used for spray computations are classified according to scale, accuracy, computational cost and problem complexity. The requirements of a simulation method to be successfully used for spray computation are then discussed. The review concludes with a perspective on the outlook for spray simulation methods.

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Heat, mass, and momentum transfer about arbitrary groups of particles

Cited by 12 publications

References 3 publications

The use of overset meshes in particle and porous media three-dimensional flows

The use of overset meshes in particle and porous media three-dimensional flows

Oscillationless Explicit Method on Overset Grid for Advective Equation

Direct Numerical Simulations and Analytical Modeling of Granular Filtration

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