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Title: Compressibility Effects on Particle-Fluid Interaction Force for Eulerian-Eulerian Simulations

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1]
  1. Los Alamos National Laboratory
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1409809
Report Number(s):
LA-UR-17-30657
DOE Contract Number:
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: American Physical Society Division of Fluid Dynamics ; 2017-11-19 - 2017-11-21 ; Denver, Colorado, United States
Country of Publication:
United States
Language:
English

Citation Formats

Akiki, Georges, Francois, Marianne M., and Zhang, Duan Zhong. Compressibility Effects on Particle-Fluid Interaction Force for Eulerian-Eulerian Simulations. United States: N. p., 2017. Web.
Akiki, Georges, Francois, Marianne M., & Zhang, Duan Zhong. Compressibility Effects on Particle-Fluid Interaction Force for Eulerian-Eulerian Simulations. United States.
Akiki, Georges, Francois, Marianne M., and Zhang, Duan Zhong. 2017. "Compressibility Effects on Particle-Fluid Interaction Force for Eulerian-Eulerian Simulations". United States. doi:. https://www.osti.gov/servlets/purl/1409809.
@article{osti_1409809,
title = {Compressibility Effects on Particle-Fluid Interaction Force for Eulerian-Eulerian Simulations},
author = {Akiki, Georges and Francois, Marianne M. and Zhang, Duan Zhong},
abstractNote = {},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2017,
month =
}

Conference:
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  • Here, we present a verification study of three simulation techniques for fluid–particle flows, including an Euler–Lagrange approach (EL) inspired by Jackson's seminal work on fluidized particles, a quadrature–based moment method based on the anisotropic Gaussian closure (AG), and the traditional two-fluid model. We perform simulations of two problems: particles in frozen homogeneous isotropic turbulence (HIT) and cluster-induced turbulence (CIT). For verification, we evaluate various techniques for extracting statistics from EL and study the convergence properties of the three methods under grid refinement. The convergence is found to depend on the simulation method and on the problem, with CIT simulations posingmore » fewer difficulties than HIT. Specifically, EL converges under refinement for both HIT and CIT, but statistics exhibit dependence on the postprocessing parameters. For CIT, AG produces similar results to EL. For HIT, converging both TFM and AG poses challenges. Overall, extracting converged, parameter-independent Eulerian statistics remains a challenge for all methods.« less
  • The analysis of fluid-structure interaction involves the calculation of both fluid transient and structure dynamics. In the structural analysis, Lagrangian meshes have been used exclusively, whereas for the fluid transient, Lagrangian, Eulerian, and arbitrary Lagrangian-Eulerian (quasi-Eulerian) meshes have been used. This paper performs an evaluation on these three types of meshes. The emphasis is placed on the applicability of the method in analyzing fluid-structure interaction problems in HCDA analysis.
  • A description is given of an arbitrary Lagrangian-Eulerian method for analyzing fluid-structure interactions in fast reactor containment with complex internal structures. In the analysis, the fluid transient can be calculated either implicitly or explicitly, using a finite-difference mesh with vertices that may be moved with the fluid (Lagrangian), held fixed (Eulerian), or moved in any other prescribed manner (hybrid Lagrangian-Eulerian). The structural response is computed explicitly by two nonlinear, elastic-plastic finite element modules formulated in corotational coordinates. Interaction between fluid and structure is accounted for by enforcing the interface boundary conditions. The method has convincing advantages in treating complicated phenomenamore » such as flow through perforated structures, large material distortions, flow around corners and irregularities, and highly contorted fluid boundaries. Several sample problems are given to illustrate the effectiveness of this arbitrary Lagrangian-Eulerian method. 12 refs.« less
  • Abstract not provided.