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Merge pull request #13774 from ericvmueller/master
FDS Validation: updates to Camp Swift vegetation model - remove burne…
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Validation/NIST_USFS_Camp_Swift/FDS_Input_Files/vegetation_model.fds

Lines changed: 76 additions & 32 deletions
Original file line numberDiff line numberDiff line change
@@ -15,7 +15,7 @@
1515
HEAT_OF_REACTION = 418. /
1616

1717
&MATL ID = 'CHAR'
18-
DENSITY = 300.
18+
DENSITY = 125.
1919
CONDUCTIVITY = 0.052
2020
SPECIFIC_HEAT_RAMP = 'c_v'
2121
SURFACE_OXIDATION_MODEL = T
@@ -28,7 +28,7 @@
2828
HEAT_OF_REACTION = -25000. /
2929

3030
&MATL ID = 'ASH'
31-
DENSITY = 67.
31+
DENSITY = 5.
3232
CONDUCTIVITY = 0.1
3333
SPECIFIC_HEAT_RAMP = 'c_v' /
3434

@@ -44,7 +44,7 @@
4444
&SURF ID = 'bluestem_lower_blade'
4545
MATL_ID = 'GENERIC VEGETATION'
4646
SURFACE_VOLUME_RATIO = 8439
47-
MOISTURE_FRACTION = 0.25
47+
MOISTURE_FRACTION = 0.259
4848
LENGTH =0.3
4949
GEOMETRY = 'CYLINDRICAL' /
5050

@@ -55,6 +55,10 @@
5555
DRAG_COEFFICIENT =2.8
5656
QUANTITIES = 'PARTICLE BULK DENSITY', 'PARTICLE MASS'
5757
STATIC = T
58+
EMBER_PARTICLE = T
59+
EMBER_DENSITY_THRESHOLD = 62.5
60+
EMBER_VELOCITY_THRESHOLD = 0
61+
TRACK_EMBERS = F
5862
RGB = 141,30,30 /
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6064
&INIT PART_ID = 'bluestem_lower_blade',
@@ -67,32 +71,36 @@
6771
&SURF ID = 'bluestem_lower_cyl'
6872
MATL_ID = 'GENERIC VEGETATION'
6973
SURFACE_VOLUME_RATIO = 1850
70-
MOISTURE_FRACTION = 0.25
74+
MOISTURE_FRACTION = 0.259
7175
LENGTH =0.3
7276
GEOMETRY = 'CYLINDRICAL' /
7377

74-
&INIT PART_ID='bluestem_lower_cyl',
75-
BULK_DENSITY_FILE='../../../../cad/Case_Studies/NIST_USFS_Camp_Swift/bluestem_lower_25cm.bdf',
76-
N_PARTICLES_PER_CELL=1,
77-
CELL_CENTERED=T,
78-
DRY=T,
79-
BULK_DENSITY_FACTOR=0.367/
80-
8178
&PART ID = 'bluestem_lower_cyl'
8279
SAMPLING_FACTOR = 10
8380
SURF_ID = 'bluestem_lower_cyl'
8481
PROP_ID = 'grass image '
8582
DRAG_COEFFICIENT =2.8
8683
QUANTITIES = 'PARTICLE BULK DENSITY', 'PARTICLE MASS'
8784
STATIC = T
85+
EMBER_PARTICLE = T
86+
EMBER_DENSITY_THRESHOLD = 62.5
87+
EMBER_VELOCITY_THRESHOLD = 0
88+
TRACK_EMBERS = F
8889
RGB = 141,30,30 /
8990

91+
&INIT PART_ID='bluestem_lower_cyl',
92+
BULK_DENSITY_FILE='../../../../cad/Case_Studies/NIST_USFS_Camp_Swift/bluestem_lower_25cm.bdf',
93+
N_PARTICLES_PER_CELL=1,
94+
CELL_CENTERED=T,
95+
DRY=T,
96+
BULK_DENSITY_FACTOR=0.367/
97+
9098
---------- Bluestem upper layer ---------
9199

92100
&SURF ID = 'bluestem_upper_blade'
93101
MATL_ID = 'GENERIC VEGETATION'
94102
SURFACE_VOLUME_RATIO = 9147
95-
MOISTURE_FRACTION = 0.096
103+
MOISTURE_FRACTION = 0.107
96104
LENGTH =0.5
97105
GEOMETRY = 'CYLINDRICAL' /
98106

@@ -103,6 +111,10 @@
103111
DRAG_COEFFICIENT =2.8
104112
QUANTITIES = 'PARTICLE BULK DENSITY', 'PARTICLE MASS'
105113
STATIC = T
114+
EMBER_PARTICLE = T
115+
EMBER_DENSITY_THRESHOLD = 62.5
116+
EMBER_VELOCITY_THRESHOLD = 0
117+
TRACK_EMBERS = F
106118
RGB = 141,30,30 /
107119

108120
&INIT PART_ID='bluestem_upper_blade',
@@ -115,7 +127,7 @@
115127
&SURF ID = 'bluestem_upper_small_cyl'
116128
MATL_ID = 'GENERIC VEGETATION'
117129
SURFACE_VOLUME_RATIO = 6768
118-
MOISTURE_FRACTION = 0.096
130+
MOISTURE_FRACTION = 0.107
119131
LENGTH =0.5
120132
GEOMETRY = 'CYLINDRICAL' /
121133

@@ -126,6 +138,10 @@
126138
DRAG_COEFFICIENT =2.8
127139
QUANTITIES = 'PARTICLE BULK DENSITY', 'PARTICLE MASS'
128140
STATIC = T
141+
EMBER_PARTICLE = T
142+
EMBER_DENSITY_THRESHOLD = 62.5
143+
EMBER_VELOCITY_THRESHOLD = 0
144+
TRACK_EMBERS = F
129145
RGB = 141,30,30 /
130146

131147
&INIT PART_ID='bluestem_upper_small_cyl',
@@ -138,7 +154,7 @@
138154
&SURF ID = 'bluestem_upper_large_cyl'
139155
MATL_ID = 'GENERIC VEGETATION'
140156
SURFACE_VOLUME_RATIO = 2438
141-
MOISTURE_FRACTION = 0.096
157+
MOISTURE_FRACTION = 0.107
142158
LENGTH =0.5
143159
GEOMETRY = 'CYLINDRICAL' /
144160

@@ -149,6 +165,10 @@
149165
DRAG_COEFFICIENT =2.8
150166
QUANTITIES = 'PARTICLE BULK DENSITY', 'PARTICLE MASS'
151167
STATIC = T
168+
EMBER_PARTICLE = T
169+
EMBER_DENSITY_THRESHOLD = 62.5
170+
EMBER_VELOCITY_THRESHOLD = 0
171+
TRACK_EMBERS = F
152172
RGB = 141,30,30 /
153173

154174
&INIT PART_ID='bluestem_upper_large_cyl',
@@ -174,6 +194,10 @@
174194
DRAG_COEFFICIENT =2.8
175195
QUANTITIES = 'PARTICLE BULK DENSITY', 'PARTICLE MASS'
176196
STATIC = T
197+
EMBER_PARTICLE = T
198+
EMBER_DENSITY_THRESHOLD = 62.5
199+
EMBER_VELOCITY_THRESHOLD = 0
200+
TRACK_EMBERS = F
177201
RGB = 111,131,78 /
178202

179203
&INIT PART_ID='camphorweed_leaf',
@@ -197,6 +221,10 @@
197221
DRAG_COEFFICIENT =2.8
198222
QUANTITIES = 'PARTICLE BULK DENSITY', 'PARTICLE MASS'
199223
STATIC = T
224+
EMBER_PARTICLE = T
225+
EMBER_DENSITY_THRESHOLD = 62.5
226+
EMBER_VELOCITY_THRESHOLD = 0
227+
TRACK_EMBERS = F
200228
RGB = 111,131,78 /
201229

202230
&INIT PART_ID='camphorweed_small_cyl',
@@ -220,6 +248,10 @@
220248
DRAG_COEFFICIENT =2.8
221249
QUANTITIES = 'PARTICLE BULK DENSITY', 'PARTICLE MASS'
222250
STATIC = T
251+
EMBER_PARTICLE = T
252+
EMBER_DENSITY_THRESHOLD = 62.5
253+
EMBER_VELOCITY_THRESHOLD = 0
254+
TRACK_EMBERS = F
223255
RGB = 111,131,78 /
224256

225257
&INIT PART_ID='camphorweed_large_cyl',
@@ -238,22 +270,26 @@
238270
LENGTH =0.41
239271
GEOMETRY = 'CYLINDRICAL' /
240272

241-
&INIT PART_ID = 'threeawn_blade',
242-
BULK_DENSITY_FILE='../../../../cad/Case_Studies/NIST_USFS_Camp_Swift/threeawn_25cm.bdf',
243-
N_PARTICLES_PER_CELL=1,
244-
CELL_CENTERED=T,
245-
DRY=T,
246-
BULK_DENSITY_FACTOR=0.210/
247-
248273
&PART ID = 'threeawn_blade'
249274
SAMPLING_FACTOR = 10
250275
SURF_ID = 'threeawn_blade'
251276
PROP_ID = 'grass image '
252277
DRAG_COEFFICIENT =2.8
253278
QUANTITIES = 'PARTICLE BULK DENSITY', 'PARTICLE MASS'
254279
STATIC = T
280+
EMBER_PARTICLE = T
281+
EMBER_DENSITY_THRESHOLD = 62.5
282+
EMBER_VELOCITY_THRESHOLD = 0
283+
TRACK_EMBERS = F
255284
RGB = 185,183,142 /
256285

286+
&INIT PART_ID = 'threeawn_blade',
287+
BULK_DENSITY_FILE='../../../../cad/Case_Studies/NIST_USFS_Camp_Swift/threeawn_25cm.bdf',
288+
N_PARTICLES_PER_CELL=1,
289+
CELL_CENTERED=T,
290+
DRY=T,
291+
BULK_DENSITY_FACTOR=0.200/
292+
257293
&SURF ID = 'threeawn_cyl'
258294
MATL_ID = 'GENERIC VEGETATION'
259295
SURFACE_VOLUME_RATIO = 5910.
@@ -268,27 +304,22 @@
268304
DRAG_COEFFICIENT =2.8
269305
QUANTITIES = 'PARTICLE BULK DENSITY', 'PARTICLE MASS'
270306
STATIC = T
307+
EMBER_PARTICLE = T
308+
EMBER_DENSITY_THRESHOLD = 62.5
309+
EMBER_VELOCITY_THRESHOLD = 0
310+
TRACK_EMBERS = F
271311
RGB = 185,183,142 /
272312

273313
&INIT PART_ID='threeawn_cyl',
274314
BULK_DENSITY_FILE='../../../../cad/Case_Studies/NIST_USFS_Camp_Swift/threeawn_25cm.bdf',
275315
N_PARTICLES_PER_CELL=1,
276316
CELL_CENTERED=T,
277317
DRY=T,
278-
BULK_DENSITY_FACTOR=0.200/
318+
BULK_DENSITY_FACTOR=0.210/
279319

280320

281321
---------- Borderveg (bluestem with average properties over entire plant height) ---------
282322

283-
&PART ID = 'borderveg'
284-
SAMPLING_FACTOR = 10
285-
SURF_ID = 'borderveg'
286-
PROP_ID = 'grass image '
287-
DRAG_COEFFICIENT=2.8
288-
QUANTITIES = 'PARTICLE BULK DENSITY', 'PARTICLE BULK DENSITY'
289-
STATIC = T
290-
RGB = 141,30,30 /
291-
292323
&SURF ID = 'borderveg'
293324
MATL_ID = 'GENERIC VEGETATION'
294325
! mass weighted average of SVR = ((.653*8439+.367*1850)*.3+(.046*2438+.110*6768+.080*9147)*.5)/(.53*.8)
@@ -298,11 +329,24 @@
298329
LENGTH = 0.1
299330
GEOMETRY = 'CYLINDRICAL' /
300331

332+
&PART ID = 'borderveg'
333+
SAMPLING_FACTOR = 10
334+
SURF_ID = 'borderveg'
335+
PROP_ID = 'grass image '
336+
DRAG_COEFFICIENT=2.8
337+
QUANTITIES = 'PARTICLE BULK DENSITY', 'PARTICLE BULK DENSITY'
338+
STATIC = T
339+
EMBER_PARTICLE = T
340+
EMBER_DENSITY_THRESHOLD = 62.5
341+
EMBER_VELOCITY_THRESHOLD = 0
342+
TRACK_EMBERS = F
343+
RGB = 141,30,30 /
344+
301345
! Total bluestem biomass distibuted over 80cm ((.653+.367)*.3+(.046+.110+.080)*.5)/.8 = 0.53
302346
&INIT PART_ID='borderveg',
303347
BULK_DENSITY_FILE='../../../../cad/Case_Studies/NIST_USFS_Camp_Swift/borderveg_25cm.bdf',
304348
N_PARTICLES_PER_CELL=1,
305349
CELL_CENTERED=T,
306350
DRY=T,
307351
BULK_DENSITY_FACTOR=0.53/
308-
352+

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