from checkfield import checkfield from fielddisplay import fielddisplay from project3d import project3d from WriteData import WriteData class matenhancedice(object): """MATICE class definition Usage: matenhancedice = matenhancedice() """ def __init__(self): #{{{ self.rho_ice = 0. self.rho_water = 0. self.rho_freshwater = 0. self.mu_water = 0. self.heatcapacity = 0. self.latentheat = 0. self.thermalconductivity = 0. self.temperateiceconductivity = 0. self.effectiveconductivity_averaging = 0 self.meltingpoint = 0. self.beta = 0. self.mixed_layer_capacity = 0. self.thermal_exchange_velocity = 0. self.rheology_E = float('NaN') self.rheology_B = float('NaN') self.rheology_n = float('NaN') self.rheology_law = '' #SLC self.earth_density = 0 # average density of the Earth, (kg/m^3) self.setdefaultparameters() #}}} def __repr__(self): #{{{ # TODO: # - Convert all formatting to calls to .format (see any # already converted .__repr__ method for examples) # s = " Materials:" s = "%s\n%s" % (s, fielddisplay(self, "rho_ice", "ice density [kg/m^3]")) s = "%s\n%s" % (s, fielddisplay(self, "rho_water", "water density [kg/m^3]")) s = "%s\n%s" % (s, fielddisplay(self, "rho_freshwater", "fresh water density [kg/m^3]")) s = "%s\n%s" % (s, fielddisplay(self, "mu_water", "water viscosity [N s/m^2]")) s = "%s\n%s" % (s, fielddisplay(self, "heatcapacity", "heat capacity [J/kg/K]")) s = "%s\n%s" % (s, fielddisplay(self, "thermalconductivity", "ice thermal conductivity [W/m/K]")) s = "%s\n%s" % (s, fielddisplay(self, "temperateiceconductivity", "temperate ice thermal conductivity [W/m/K]")) s = "%s\n%s" % (s, fielddisplay(self, "effectiveconductivity_averaging", "computation of effectiveconductivity: (0) arithmetic mean, (1) harmonic mean, (2) geometric mean (default)")) s = "%s\n%s" % (s, fielddisplay(self, "meltingpoint", "melting point of ice at 1atm in K")) s = "%s\n%s" % (s, fielddisplay(self, "latentheat", "latent heat of fusion [J/m^3]")) s = "%s\n%s" % (s, fielddisplay(self, "beta", "rate of change of melting point with pressure [K/Pa]")) s = "%s\n%s" % (s, fielddisplay(self, "mixed_layer_capacity", "mixed layer capacity [W/kg/K]")) s = "%s\n%s" % (s, fielddisplay(self, "thermal_exchange_velocity", "thermal exchange velocity [m/s]")) s = "%s\n%s" % (s, fielddisplay(self, "rheology_E", "enhancement factor")) s = "%s\n%s" % (s, fielddisplay(self, "rheology_B", "flow law parameter [Pa s^(1/n)]")) s = "%s\n%s" % (s, fielddisplay(self, "rheology_n", "Glen's flow law exponent")) s = "%s\n%s" % (s, fielddisplay(self, "rheology_law", "law for the temperature dependance of the rheology: 'None', 'BuddJacka', 'Cuffey', 'CuffeyTemperate', 'Paterson', 'Arrhenius' or 'LliboutryDuval'")) s = "%s\n%s" % (s, fielddisplay(self, "earth_density", "Mantle density [kg/m^-3]")) return s #}}} def extrude(self, md): #{{{ self.rheology_E = project3d(md, 'vector', self.rheology_E, 'type', 'node') self.rheology_B = project3d(md, 'vector', self.rheology_B, 'type', 'node') self.rheology_n = project3d(md, 'vector', self.rheology_n, 'type', 'element') return self #}}} def setdefaultparameters(self): #{{{ #ice density (kg / m^3) self.rho_ice = 917. #ocean water density (kg / m^3) self.rho_water = 1023. #fresh water density (kg / m^3) self.rho_freshwater = 1000. #water viscosity (N.s / m^2) self.mu_water = 0.001787 #ice heat capacity cp (J / kg / K) self.heatcapacity = 2093. #ice latent heat of fusion L (J / kg) self.latentheat = 3.34 * 10**5 #ice thermal conductivity (W / m / K) self.thermalconductivity = 2.4 #temperate ice thermal conductivity (W / m / K) self.temperateiceconductivity = 0.24 #computation of effective conductivity self.effectiveconductivity_averaging = 1 #the melting point of ice at 1 atmosphere of pressure in K self.meltingpoint = 273.15 #rate of change of melting point with pressure (K / Pa) self.beta = 9.8 * 10**-8 #mixed layer (ice-water interface) heat capacity (J / kg / K) self.mixed_layer_capacity = 3974. #thermal exchange velocity (ice-water interface) (m / s) self.thermal_exchange_velocity = 1.00 * 10**-4 #Rheology law: what is the temperature dependence of B with T #available: none, paterson and arrhenius self.rheology_law = 'Paterson' #GIA self.lithosphere_shear_modulus = 6.7 * 10**10 # (Pa) self.lithosphere_density = 3.32 # (g / cm^ - 3) self.mantle_shear_modulus = 1.45 * 10**11 # (Pa) self.mantle_density = 3.34 # (g / cm^ - 3) #SLC self.earth_density = 5512 #average density of the Earth, (kg / m^3) return self #}}} def checkconsistency(self, md, solution, analyses): #{{{ md = checkfield(md, 'fieldname', 'materials.rho_ice', '>', 0) md = checkfield(md, 'fieldname', 'materials.rho_water', '>', 0) md = checkfield(md, 'fieldname', 'materials.rho_freshwater', '>', 0) md = checkfield(md, 'fieldname', 'materials.mu_water', '>', 0) md = checkfield(md, 'fieldname', 'materials.rheology_E', '>', 0, 'timeseries', 1, 'NaN', 1, 'Inf', 1) md = checkfield(md, 'fieldname', 'materials.rheology_B', '>', 0, 'timeseries', 1, 'NaN', 1, 'Inf', 1) md = checkfield(md, 'fieldname', 'materials.rheology_n', '>', 0, 'size', [md.mesh.numberofelements]) md = checkfield(md, 'fieldname', 'materials.rheology_law', 'values', ['None', 'BuddJacka', 'Cuffey', 'CuffeyTemperate', 'Paterson', 'Arrhenius', 'LliboutryDuval']) md = checkfield(md, 'fieldname', 'materials.effectiveconductivity_averaging', 'numel', [1], 'values', [0, 1, 2]) if 'SealevelchangeAnalysis' in analyses: md = checkfield(md, 'fieldname', 'materials.earth_density', '>', 0, 'numel', 1) return md # }}} def marshall(self, prefix, md, fid): #{{{ WriteData(fid, prefix, 'name', 'md.materials.type', 'data', 4, 'format', 'Integer') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'rho_ice', 'format', 'Double') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'rho_water', 'format', 'Double') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'rho_freshwater', 'format', 'Double') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'mu_water', 'format', 'Double') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'heatcapacity', 'format', 'Double') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'latentheat', 'format', 'Double') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'thermalconductivity', 'format', 'Double') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'temperateiceconductivity', 'format', 'Double') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'effectiveconductivity_averaging', 'format', 'Integer') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'meltingpoint', 'format', 'Double') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'beta', 'format', 'Double') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'mixed_layer_capacity', 'format', 'Double') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'thermal_exchange_velocity', 'format', 'Double') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'rheology_E', 'format', 'DoubleMat', 'mattype', 1, 'timeserieslength', md.mesh.numberofvertices + 1, 'yts', md.constants.yts) WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'rheology_B', 'format', 'DoubleMat', 'mattype', 1, 'timeserieslength', md.mesh.numberofvertices + 1, 'yts', md.constants.yts) WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'rheology_n', 'format', 'DoubleMat', 'mattype', 2) WriteData(fid, prefix, 'data', self.rheology_law, 'name', 'md.materials.rheology_law', 'format', 'String') WriteData(fid, prefix, 'object', self, 'class', 'materials', 'fieldname', 'earth_density', 'format', 'Double') # }}}