LES of Turbulent Jet Flows Using the Lattice Boltzmann Approach

Feiz, Homayoon; Soo, Jin Hou; Menon, Suresh

doi:10.2514/6.2003-780

Cited by 3 publications

(2 citation statements)

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“…The large eddyflattice Boltzmann simulation for microblowing was conducted by Prof. Menon The LBE-LES method was frst used to simulate a single jet in crossflow [35] and had very good agreement with experimental data. The LBE-FV approach was then applied to a limited set of holes, that is, 3 by 3 square pattern of injection holes with D = 0.5 mm and equally spaced a distance of D apart, as shown in Fig.…”

Section: Large Eddynattice Boltmnn Simulation (2002-2004 [32-341)mentioning

confidence: 91%

Review of research into the concept of the microblowing technique for turbulent skin friction reduction

Hwang

2004

Progress in Aerospace Sciences

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A new technology for reducing turbulent skin friction, called the Microblowing Technique (MBT), is presented. Results from proof-of-concept experiments show that this technology could potentially reduce turbulent skin friction by more than 50% of the skin friction of a solid flat plate for subsonic and supersonic flow conditions. The primary purpose of this review paper is to provide readers with information on the turbulent skin friction reduction obtained from many experiments using the MBT. Although the MBT has a penalty for obtaining the microblowing air associated with it, some combinations of the MBT with suction boundary layer control methods are an attractive alternative for a real application. Several computational simulations to understand the flow physics of the MBT are also included. More experiments and computational fluid dynamics (0) computations are needed for the understanding of the unsteady flow nature of the MBT and the optimization of this new technology.

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Section: Large Eddynattice Boltmnn Simulation (2002-2004 [32-341)mentioning

confidence: 91%

Review of research into the concept of the microblowing technique for turbulent skin friction reduction

Hwang

2004

Progress in Aerospace Sciences

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“…The DES methodology is a derivative of the large eddy simulation (LES) method that is being used recently for predicting gas turbine engine combustion instabilities in industries and academia. 6,7,8 For more details on the theory of scaled resolved simulations (SRS) or hybrid models (such as DES) and their limitations and requirements, interested readers may refer to the referenced literature. 9,10 In short, DES is an explicit combination of unsteady Reynolds averaged Navier-Stokes simulation (URANS) and LES models that is switched based on the grid spacing.…”

Section: Introductionmentioning

confidence: 99%

Gas Turbine Fuel Nozzle Durability Assessment Using Detached Eddy Simulations and Structural Dynamic Response Analysis

Feiz¹,

Huffman²

2014

50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference

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In this paper, the unsteady aero loads in a typical gas turbine fuel nozzle (GTFN) are analyzed using detached eddy simulation (DES) and finite element models. These numerical models are validated with component and system level rig test data collected at GE Power & Water's combustion laboratory in Greenville, SC, and the models are used as design tools to reduce periodic pressure forces on GTFNs with a purge flow concept. Moreover, field tests were conducted at a joint development platform facility to verify the dynamic response during the design analysis cycle (DAC). This DAC is an example of GE Power & Water's capability in assessing the durability of its hardware using a combination of analytical tools and laboratory tests, along with verifications through field tests in real conditions. Such resources have enabled GE engineers to improve the hardware design and increase the life of GTFNs as a result. Nomenclature D h= hydraulic diameter f = frequency M = moments (with x, y, z subscripts for components) S = Strouhal number U = velocity

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Numerical Study on Flow Control by Micro-Blowing

Lee

Li-ping

et al. 2009

47th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

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LES of Turbulent Jet Flows Using the Lattice Boltzmann Approach

Cited by 3 publications

References 0 publications

Review of research into the concept of the microblowing technique for turbulent skin friction reduction

Review of research into the concept of the microblowing technique for turbulent skin friction reduction

Gas Turbine Fuel Nozzle Durability Assessment Using Detached Eddy Simulations and Structural Dynamic Response Analysis

Numerical Study on Flow Control by Micro-Blowing

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