ML010260419
| ML010260419 | |
| Person / Time | |
|---|---|
| Site: | Boiling Water Reactor Owners Group |
| Issue date: | 01/26/2001 |
| From: | Pulsifer R NRC/NRR/DLPM |
| To: | |
| Pulsifer R M, NRR/DLPM, 415-3016 | |
| Shared Package | |
| ML010310367 | List: |
| References | |
| Download: ML010260419 (4) | |
Text
Figure 1 One-eighth Slice of BWR/4 Lower Plenum cc*t
3.00e+O0 224e+00 1.48e+00 722e-01
-3.82e-O2
-798e-01
-1 56e-00 32e+00
-308e+00 84e+/-0O
-460e-O0
-536e÷00
-6. 2e+O0 r
k1.
AMF' r Z
E-E
--Eý r
I A'r r
Li I.
Ia ums F'
I..'
-4F' Im~
L x r
Crntours of Z Velocity (mDs)
D2c 21, 2000 FLUENT 54 (3d, dp, segregated, rngke)
Figure 2 Contours of vertical velocity looking down from the core into the lower plenum.
COQ r
L -I F'
w
lower-tiepiate L shurud-I -inJ z
Velocity (m/s) 3.50e+00 3.00e+O0 2.50e+00 2M9e+O0 1.50e+O0 1 0Oe+O0 500e-01 OOOe+00+
0 0.25 0.5 0.75 1
1.25 1.5 1.75 2
2,25 2.5 Position (m)
Z Velocity Dec 21, 2000 FLUENT 54 (3d, dp, segregated, rngke)
Figure 3 Plot of vertical velocity along two lines at different elevations from the centerline to the outer radius of the lower shroud 4 xx
'C
'C X X x
'C
-I
'C t
'C
+/-
N 4
1 3t
+F A
1
4 p-F
+
4
+
+
'C q-~
+
1 A
ý X
iý-
M,
ýS X
'16 X,
0i
5.86e+B00 5.37e+-O 4-88e+00 4.40e+00 3.1 e+00 3-42e4-OO 293e+00 2.44e+00 1.95e+00 1.47e+00 9-77e-01 4.88e-O1 0 03e+O0 Path Lines Colored by Velocity Magnitude (m/s)
Dec 21, 2000 S...FLUENT 5_4 (3d, dp, segregated, rngke)
Figure 4 Pathlines of mass-less particles flowing from jet pump diffuser into lower plenum C_( -o