UFR 4-18 Evaluation: Difference between revisions
| Line 80: | Line 80: | ||
==== Mean velocity profiles ==== | ==== Mean velocity profiles ==== | ||
===== <math>Re_D = 3000</math> ===== | ===== <math>Re_D = 3000</math> ===== | ||
[[Image:U_Re3000_lineB_rows1_2_3_5.jpg]]<br/> | [[Image:U_Re3000_lineB_rows1_2_3_5.jpg]]<br/> | ||
Revision as of 10:19, 16 April 2015
Flow and heat transfer in a pin-fin array
Confined Flows
Underlying Flow Regime 4-18
Evaluation
Comparison of CFD Calculations with Experiments
Discuss how well the CFD calculations of the assessment quantities
compare with experiment and with one another. Present some key
comparisons in the form of tables or graphical plots and, where
possible, provide hyperlinks to the appropriate results database.
Results with different turbulence models covering as wide a range as
possible should be included in the discussion. However, if too many
different calculation results are available (e.g. from workshops) do
not present all the comparisons here. A selection should be made
showing results only for the most typical and practically important
models. Comprehensive comparisons can be made available via a link to
the associated databases. Finally, draw conclusions on the ability of
the models used to simulate the test case flow.
Global comparisons
Pressure loss coefficient
| LES3000 | LES10000 | EBRSM10000 | PHI10000 | kwSST10000 | EBRSM30000 | PHI30000 | kwSST30000 |
|---|---|---|---|---|---|---|---|
| 0.1076 | 0.0939 | 0.0963 | 0.0789 | 0.0883 | 0.0771 | 0.0615 | 0.0744 |
Figure ??: Pressure loss coefficient
Average Nusselt Number
| Exp. 3000 | Exp. 10000 | Exp. 30000 | LES3000 | LES10000 | EBRSM10000 | PHI10000 | kwSST10000 | EBRSM30000 | PHI30000 | kwSST30000 |
|---|---|---|---|---|---|---|---|---|---|---|
| 22.1 | 54.1 | 111.5 | 21.6 | 48.6 | 48.1 | 37.6 | 33.1 | 119.4 | 93.3 | 72 |
Figure ??: Averaged Nusselt number on the bottom wall
Local comparisons
Mean velocity profiles
Figure ??: Mean stream-wse velocity component along line B - LES at
Figure ??: R.m.s. of the stream-wise velocity component along line B - LES at
Figure ??: Pressure coefficient along the midline of the pins - LES and URANS computations at
Figure ??: Mean stream-wse velocity component along line B - LES and URANS computations at
Figure ??: R.m.s. of the stream-wise velocity component along line B - LES and URANS computations at
Figure ??: Resolved and modelled contributions to the r.m.s. of the stream-wise velocity component along line B - URANS computations at
R.m.s. velocity profiles
Nusselt number on the bottom wall
Contributed by: Sofiane Benhamadouche — EDF
© copyright ERCOFTAC 2024