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Applications of FLUENT - Two Flow Modeling Examples. By Jean Wang, Ph. D. May 13, 2005 Northern HPC Spring Conference. FLUENT?. Fluent is a commercial computational fluid dynamics (CFD) software.

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applications of fluent two flow modeling examples

Applications of FLUENT - Two Flow Modeling Examples

By Jean Wang, Ph. D.

May 13, 2005

Northern HPC Spring Conference

fluent
FLUENT?
  • Fluent is a commercial computational fluid dynamics (CFD) software.
  • It could be used for simulation, visualization, and analysis of fluid flow, heat and mass transfer, and chemical reactions.
  • Industries that use Fluent CFD includes aerospace, automotive, electronics cooling, healthcare, chemical process etc.
numerical approach
Numerical Approach
  • Grids was generated by GAMBIT, a preprocessor of Fluent. Both Quadrilateral cells and triangular cells were used.
  • Variety of turbulence models have been used in the simulations including Spalart-Allmaras turbulence model, five equation Reynolds Stress Model and LES.
  • Fluent, Tecplot, and FIELDVIEW have been used for data visualization.
problem description case 1 laminar flow through a staggered tube bank
Problem Description (case 1): Laminar Flow Through a Staggered Tube Bank
  • Solution Domain:

Lus=4.875 (m), Ltb=11.691 (m), Lds=23 (m)

problem description case 1 continue
Problem Description (case 1): Continue
  • Staggered Tube Bank Nomenclature:

SL=1.2990 (m), ST=1.50 (m), D=1 (m)

grid for case 1
Grid for Case 1
  • Grid details in part of solution domain: the quadrrilateral cells were used around the tube wall and triangle cells were used in all other region.
problem description case 2 flow through a smooth rectangular open channel
Problem Description (case 2): Flow Through a Smooth Rectangular Open-Channel
  • The channel is 0.192 m in width, and 0.6 m in length, and the water depth is 0.1 m.
  • The slope of the channel is 0.001.
problem description case 2 continued flow through a smooth rectangular open channel
Problem Description (case 2, Continued): Flow Through a Smooth Rectangular Open-Channel
  • D=0.05 m
results for case 2 continued streamlines
Results for Case 2 (Continued): Streamlines
  • Flow around spheres

(plotted by FIELDVIEW)

results for case 2 continued water depth
Results for Case 2 (Continued): Water Depth
  • Exp. data:
  • H1=0.0945 m
  • V1=0.6 m/s
  • H2=0.0593 m
  • V1=1.07 m/s
conclusions
Conclusions
  • Case 1  FLUENT is a state-of-the-art CFD Software.
  • Case 2  The capability of FLUENT was tested in a multiphase flow.
  • Reference:

Y.Q. Wang, L.A. Penner, and S.J. Ormiston, "Analysis of Laminar Forced Convection of Air for Crossflow in Banks of staggered Tubes", 2000, Numerical Heat Transfer, Part A, Vol. 38, pp. 819-845.

Y.Q. Wang, “Laminar Flow Through a Staggered Tube Bank", 2004, Journal of Thermophysics and Heat Transfer, Vol. 18, pp. 557-559.