Results 71 to 80 of about 107,584 (238)

Large Eddy Simulation of combustion instabilities in a lean partially premixed swirled flame [PDF]

open access: yes, 2012
This paper investigates one issue related to Large Eddy Simulations (LES) of self- excited combustion instabilities in gas-fueled swirled burners: the effects of incom- plete mixing between the gas injection and the combustion chamber.
Albouze   +36 more
core   +3 more sources

SIMULATION OF TURBULENT FLOW OVER A BACKWARD FACING STEP USING LATTICE BOLTZMANN METHOD [PDF]

open access: yesJournal of Engineering Science and Technology, 2013
The lattice Boltzmann scheme for solving the equations governing the flow of fluids has become increasingly popular in recent years. In this method, a probability distribution function for the velocity of fluid elements is computed at each grid point ...
NOR AZWADI C. SIDIK   +2 more
doaj  

Resolution and Energy Dissipation Characteristics of Implicit LES and Explicit Filtering Models for Compressible Turbulence

open access: yesFluids, 2017
Solving two-dimensional compressible turbulence problems up to a resolution of 16, 384^2, this paper investigates the characteristics of two promising computational approaches: (i) an implicit or numerical large eddy simulation (ILES) framework using an ...
Romit Maulik, Omer San
doaj   +1 more source

Numerical Study on the Effect of Air–Sea–Land Interaction on the Atmospheric Boundary Layer in Coastal Area

open access: yesAtmosphere, 2018
We have performed large-eddy simulations (LES) to study the effect of complex land topography on the atmospheric boundary layer (ABL) in coastal areas. The areas under investigation are located at three beaches in Monterey Bay, CA, USA.
Zixuan Yang   +10 more
doaj   +1 more source

Influence of grid aspect ratio on planetary boundary layer turbulence in large-eddy simulations

open access: yes, 2015
. We examine the influence of the grid aspect ratio of horizontal to vertical grid spacing on turbulence in the planetary boundary layer (PBL) in a large-eddy simulation (LES). In order to clarify and distinguish them from other artificial effects caused
S. Nishizawa   +4 more
semanticscholar   +1 more source

Eulerian – Eulerian Large Eddy Simulations Applied to Non-Reactive Transient Diesel Sprays

open access: yesOil & Gas Science and Technology, 2013
The aim of this study is to perform and analyze LES (Large Eddy Simulations) simulations of transient Diesel sprays in a high-pressure and high-temperature vessel. In order to be representative of real Diesel injection strategies, two
Robert Anthony   +3 more
doaj   +1 more source

Numerical simulations of hydrogen auto-ignition in a turbulent co-flow of heated air [PDF]

open access: yes, 2009
Our research objective is the performance of Large-Eddy Simulation (LES) with the first order Conditional Moment Closure (CMC) of the test case experimentally studied by Markides and Mastorakos [1].
Lacor, Chris   +4 more
core  

Fuel-Air Mixing In A Turbulent Coannular Pipe Flow Measured Using Laser Absorption With Genetic Algorithm-Based Tomographic Reconstruction And Modeled With LES

open access: yesEurasian Chemico-Technological Journal, 2014
This research aims at improving the knowledge base of fuel-air mixing through measurements and modeling. The measurements are from an improved tomographic reconstruction method that is relatively easy to accomplish. A novel aspect of this research is the
J. W. Girard   +4 more
doaj   +1 more source

Large Eddy Simulations (LES) and Direct Numerical Simulations (DNS) for the computational analyses of high speed reacting flows [PDF]

open access: yes
The principal objective is to extend the boundaries within which large eddy simulations (LES) and direct numerical simulations (DNS) can be applied in computational analyses of high speed reacting flows. A summary of work accomplished during the last six
Frankel, S. H.   +3 more
core   +1 more source

Martian meso/micro-scale winds and surface energy budget [PDF]

open access: yes, 2011
Regional, diurnal and seasonal variations of surface temperature are particularly large on Mars. This is mostly due to the Martian surface remaining close to radiative equilibrium.
Forget, F.   +6 more
core  

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