Mathematical Problems in Engineering / 2020 / Article / Tab 1

Research Article

Unsteady RANS Modeling of Flow around Two-Dimensional Rectangular Cylinders with Different Side Ratios at Reynolds Number 6.85 × 105

Table 1

Comparison of integral parameters with different models.

Casey0/h (×10−3)Re (×104)CdRelative deviation (%)ClrmsRelative deviation (%)StRelative deviation (%)

Standard k-εM1G10.568.51.6720.50.0298.30.1292.3
M1G21.01.6919.50.3173.50.1384.5
M1G31.51.6720.50.2975.20.08535.6
M1G42.01.6720.50.3074.40.11413.6
RNG k-εM2G10.52.3511.92.53116.20.09031.8
M2G21.02.3210.51.6541.00.09031.8
M2G31.52.3311.01.7045.30.09925.0
M2G42.02.3511.91.6541.00.1209.1
Realizable k-εM3G10.52.162.91.246.00.09627.3
M3G21.02.24.81.289.40.1427.6
M3G31.52.131.41.235.10.10024.2
M3G42.02.101.01.142.60.11115.9
EXP(Norberg [10])1.32.162.8R0.13215.9R
EXP (Lyn et al. [1])2.142.10.132
LES (Sohankar [4])2.22.329.5R1.5426.0R0.13215.9R
TL-K1 k-ε (Rodi [34])2.22.05.0R1.170.14322.4R
Modified k-ε (shimada and Ishihara [15])2.22.052.4R1.4320.3R0.14121.3R
SST k-ω (Tian et al. [16])2.142.061.9R1.4923.5R0.13819.6R

Values with in bold were the reference values for relative deviation calculation and values with superscript R represent the relative deviation between M3G4 and the corresponding reference literature.

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