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OpenFAST IO updates: MoorDyn and StC #2818

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Merged
andrew-platt merged 3 commits into from
May 19, 2025
Merged

OpenFAST IO updates: MoorDyn and StC #2818

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2c537cc
Make StC inputs relative to ServoDyn
dzalkind May 16, 2025
621a2d9
Let WaterKin = 0, make INTERTIALF an int
dzalkind May 16, 2025
46c3d8f
Merge remote-tracking branch 'upstream/rc-4.0.5' into of_io_update
dzalkind May 16, 2025
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8 changes: 6 additions & 2 deletions openfast_io/openfast_io/FAST_reader.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1717,7 +1717,10 @@ def read_StC(self,filename):
'''
StC_vt = {}

with open(os.path.join(self.FAST_directory, filename)) as f:
# Inputs should be relative to ServoDyn, like in OpenFAST
SvD_dir = os.path.dirname(self.fst_vt['Fst']['ServoFile'])

with open(os.path.join(self.FAST_directory, SvD_dir, filename)) as f:

f.readline()
f.readline()
Expand Down Expand Up @@ -3191,7 +3194,8 @@ def read_MoorDyn(self, moordyn_file):
if option_name.upper() == 'WATERKIN':
self.fst_vt['MoorDyn']['WaterKin'] = option_value.strip('"')
WaterKin_file = os.path.normpath(os.path.join(os.path.dirname(moordyn_file), self.fst_vt['MoorDyn']['WaterKin']))
self.read_WaterKin(WaterKin_file)
if self.fst_vt['MoorDyn']['WaterKin'].upper() not in ['0','UNUSED']:
self.read_WaterKin(WaterKin_file)

self.fst_vt['MoorDyn']['option_values'].append(float_read(option_value.strip('"'))) # some options values can be strings or floats
self.fst_vt['MoorDyn']['option_names'].append(option_name)
Expand Down
14 changes: 9 additions & 5 deletions openfast_io/openfast_io/FAST_writer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -65,9 +65,9 @@ def int_default_out(val, trim = False):
"""
if type(val) is float:
if trim:
return '{:d}'.format(val)
return '{:d}'.format(int(val))
else:
return '{:<22d}'.format(val)
return '{:<22d}'.format(int(val))
else:
if trim:
return '{:}'.format(val)
Expand Down Expand Up @@ -250,7 +250,7 @@ def execute(self):
self.write_MAP()
elif self.fst_vt['Fst']['CompMooring'] == 3:
self.write_MoorDyn()
if 'option_names' in self.fst_vt['MoorDyn'] and 'WATERKIN' in self.fst_vt['MoorDyn']['option_names']:
if self.fst_vt['WaterKin']: # will be empty if not read
self.write_WaterKin(os.path.join(self.FAST_runDirectory,self.fst_vt['MoorDyn']['WaterKin_file']))

# # look at if the the self.fst_vt['BeamDyn'] is an array, if so, loop through the array
Expand Down Expand Up @@ -2497,10 +2497,14 @@ def write_MoorDyn(self):
f.write('---------------------- SOLVER OPTIONS ---------------------------------------\n')
for i in range(len(self.fst_vt['MoorDyn']['option_values'])):

if 'WATERKIN' in self.fst_vt['MoorDyn']['option_names'][i]:
if self.fst_vt['MoorDyn']['option_names'][i].upper() == 'WATERKIN' and self.fst_vt['WaterKin']:
# WATERKIN needs to be a string, and should have already been read in and part of fst_vt
self.fst_vt['MoorDyn']['WaterKin_file'] = self.FAST_namingOut + '_WaterKin.dat'
f.write('{:<22} {:<11} {:}'.format('"'+self.fst_vt['MoorDyn']['WaterKin_file']+'"', self.fst_vt['MoorDyn']['option_names'][i], self.fst_vt['MoorDyn']['option_descriptions'][i]+'\n'))
else: # if not waterkin handle normally
elif self.fst_vt['MoorDyn']['option_names'][i].upper() in ['INERTIALF','WATERKIN']:
# These options need to be an integer
f.write('{:<22} {:<11} {:}'.format(int_default_out(self.fst_vt['MoorDyn']['option_values'][i]), self.fst_vt['MoorDyn']['option_names'][i], self.fst_vt['MoorDyn']['option_descriptions'][i]+'\n'))
else: # if not handle normally
f.write('{:<22} {:<11} {:}'.format(float_default_out(self.fst_vt['MoorDyn']['option_values'][i]), self.fst_vt['MoorDyn']['option_names'][i], self.fst_vt['MoorDyn']['option_descriptions'][i]+'\n'))

f.write('------------------------ OUTPUTS --------------------------------------------\n')
Expand Down