LES of Fuel Jet in Cross-Flow Using Lattice Boltzmann Method

Feiz, Homayoon; Menon, Suresh

doi:10.2514/6.2003-5206

Cited by 4 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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

Self Cite

View full text Add to dashboard Cite

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

show abstract

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

Self Cite

View full text Add to dashboard Cite

show abstract

“…The LBE has been successfully tested for different kind of problems, laminar to turbulent flows in two and three dimensions. 4,5,6 Commonly used, the lattice Boltzmann equation is the lattice Bhatnagar-Gross-Krook (LBGK) equation based on a single relaxation time (SRT). Although it has deficiencies, it has been the most popular model due to its simplicity.…”

Section: Introductionmentioning

confidence: 99%

Direct and Large-Eddy Simulation of Decaying and Forced Isotropic Turbulence Using Lattice Boltzmann Method

Orphee

Gungor

Sanchez-Rocha

et al. 2006

36th AIAA Fluid Dynamics Conference and Exhibit

Self Cite

View full text Add to dashboard Cite

The capability of the lattice Boltzmann method to simulate turbulent flows using direct and large eddy simulations is explored by performing decaying and forced isotropic turbulence. The decay exponents and the spectral scaling properties of energy and dissipation are compared with classical results. The lattice Boltzmann method, with single and multiple relaxation time, captures important features of turbulence, and the results are in agreement with the classical ones. The ability of the lattice Boltzmann method to perform large eddy simulation using dynamic Smagorinsky model and the local dynamic subgrid kinetic energy method is explored.

show abstract

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

Hwang

2004

Progress in Aerospace Sciences

View full text Add to dashboard Cite

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.

show abstract

LES of Fuel Jet in Cross-Flow Using Lattice Boltzmann Method

Cited by 4 publications

References 0 publications

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

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

Direct and Large-Eddy Simulation of Decaying and Forced Isotropic Turbulence Using Lattice Boltzmann Method

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

Contact Info

Product

Resources

About