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Table 4 Simulated trap efficiencies of different case setups

From: Numerical investigation of particles’ transport, deposition and resuspension under unsteady conditions in constructed stormwater ponds

DPM case number

Process A:

settling

Process B:

resuspension

Quantity of particles

CL for DRWM

Rebound resistance coefficient

Predicted trap efficiency (%)

1

Yes

Yes

22,400

0.15

e = 1, f = 1

79.45

2

Yes

Yes

44,800

0.15

e = 1, f = 1

81.81

3

Yes

Yes

67,200

0.15

e = 1, f = 1

82.13

4

Yes

Yes

89,600

0.15

e = 1, f = 1

82.20

5

Yes

Yes

100,800

0.15

e = 1, f = 1

81.70

6

Yes

Yes

44,800

0.05

e = 1, f = 1

87.85

7

Yes

Yes

44,800

0.25

e = 1, f = 1

81.48

8

Yes

Yes

44,800

0.5

e = 1, f = 1

82.00

9

Yes

Yes

44,800

No DRWM

e = 1, f = 1

96.65

10

Yes

Yes

44,800

0.05

e = 0.84−4.84τ*,

f = 0.73

86.77

11

Yes

Yes

44,800

0.1

e = 0.84–4.84τ*,

f = 0.73

83.94

12

Yes

No

44,800

0.05

e = 1, f = 1

92.77