direct numerical simulations
Using the Force: Applications and Implications of Turbulence Forcing Terms in Direct Numerical Simulations
... The simulations then resolve only the fluctuations using simple com- putational domains, while emulating the effect of the mean flow using "forcing" ...lence, Direct Numerical ...
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Direct numerical simulations of particle-laden density currents with adaptive, discontinuous finite elements
... High-resolution numerical models have become an im- portant tool for the detailed analysis of particle-laden den- sity current ...equations. Direct numerical simulations (DNSs) of particle- ...
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Further Investigation on Laminar Forced Convection of Nanofluid Flows in a Uniformly Heated Pipe Using Direct Numerical Simulations
... Abstract: In the present paper, laminar forced convection nanofluid flows in a uniformly heated horizontal tube were revisited by direct numerical simulations. Single and two-phase models were ...
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Effect of self-stratification on sediment diffusivity in channel flows and boundary layers: a study using direct numerical simulations
... from direct numerical simulations (DNS) of flows subjected to different levels of stratification, where the level of strati- fication is dependent on the particle size (parameterized using particle ...
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Direct numerical simulations of particle-laden density currents with adaptive, discontinuous finite elements
... High-resolution numerical models have become an im- portant tool for the detailed analysis of particle-laden den- sity current ...equations. Direct numerical simulations (DNSs) of particle- ...
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Direct numerical simulations of particle sedimentation with heat transfer using the Lattice Boltzmann method
... The direct-forcing IBM has been applied to solving many complex boundary problems [18]-[23] because it has good stability and hasn’t adjusted arbitrary ...the direct-forcing method with sharp interface ...
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Direct numerical simulations of passive scalars: effect of initial mixture fraction distribution on timescales
... Proceedings of The Australian Combustion Symposium Nov 6 - 8, 2013, The University Club of Western Australia Committees Conference Chair: Professor Dongke Zhang FTSE, The University of W[r] ...
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A Coupling Scheme for Direct Numerical Simulations with an Acoustic Solver
... a direct aeroacoustic simulation ...types, numerical methods and ...The numerical methods used are always explicit time integration methods with a time step that is chosen as large as possible in ...
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Analysis of Direct Numerical Simulations of ignition fronts in turbulent non premixed flames in the context of Conditional Moment Closure
... First order Chemistry x0.25.. First order Chemistry x0.25.[r] ...
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Direct Numerical Simulations of Reaction Fronts Propagation under Quasi Periodic Gravitational Modulation
... The aim of this paper is to study the influence of quasi- periodic gravitational modulation on convective instability of reaction fronts in porous media. The model contains reaction diffusion equations coupled with the ...
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Direct numerical simulations of helical dynamo action: MHD and beyond
... present direct numeri- cal simulations of MHD helical dynamos, to study the expo- nential growth and saturation of magnetic ...fields. Simulations are made within the framework of incompressible ...
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Dynamical Subgrid-scale Parameterizations for Quasigeostrophic Flows using Direct Numerical Simulations
... The systematic approach to parameterizing the subgrid scales based on the statistics of the flow, as calculated by closure theory, can be traced back to the works of Leith (1971) and Kraichnan (1976). Leith used EDQNM ...
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Bedrock incision by bedload: insights from direct numerical simulations
... If the bedrock is covered with a layer of mobile pebbles, as in our simulations, the turbulent velocity profile is modified. Recently, Duran et al. (2012) developed a quasi-2-D mecha- nistic approach that takes ...
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Electric field stabilization of viscous liquid layers coating the underside of a surface
... extensive numerical experimentation, were introduced to surmount these ...from direct numerical simulations that can be compared with the asymptotic model ...
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Modelling of Non-Spherical Particles in Dilute Non-Colloidal Suspensions Using SPH
... resolved direct numerical simulations based on a coupled formulation of the momentum conservation including an extra part for solid-solid contact ...
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Control of Laminar Boundary-Layer Separation Using Steady and Harmonic Vortex Generator Jets
... resolution direct numerical simulations of canonical separation bubbles on a flat-plate were carried out for investigating active flow control for a laminar separation bubble using vortex generator ...
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An improved turbulent boundary layer inflow condition, applied to the simulation of jets in cross flow
... This review chapter is focused on the various methods available to fluid dynamicists, capable of providing inflow boundary conditions for Direct Numerical Simulations DNS or Large Eddy S[r] ...
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Travelling waves in a neural field model with refractoriness
... Direct numerical simulations of a purely excitatory network, see below, show the possibility of periodic travelling waves. This is particularly interesting because these are not typically found in ...
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Subcritical Thermal Convection of Liquid Metals in a Rapidly Rotating Sphere
... [1]. Numerical models of planetary dynamos [2, 3] are widely used to study these strongly nonlinear ...most direct numerical simulations (DNS) of the dynamos have set the Prandtl number P r = ...
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Modulational instability of Rossby and drift waves and generation of zonal jets
... with direct numerical simulations (DNS), comparing them with the solutions of the four-mode truncated (4MT) and the three-mode truncated (3MT) ...
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