Difference between revisions of "IronPython Script Snippets"
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| − | = | + | = Create and Connect Objects = |
Assuming that you're running a simulation with defined compound(s) and property package(s), this will create and connect a cooler and its connections: | Assuming that you're running a simulation with defined compound(s) and property package(s), this will create and connect a cooler and its connections: | ||
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</source> | </source> | ||
| − | = | + | = Getting a reference to a Compound in the simulation = |
<source lang=python> | <source lang=python> | ||
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'''mycompound''' and '''mycompound2''' are referencing the same object in memory. | '''mycompound''' and '''mycompound2''' are referencing the same object in memory. | ||
| − | = | + | = Executing a script from another tab/section = |
<source lang=python> | <source lang=python> | ||
| Line 62: | Line 62: | ||
</source> | </source> | ||
| − | = | + | = Setting the properties of a Material Stream = |
<source lang=python> | <source lang=python> | ||
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</source> | </source> | ||
| + | |||
| + | = Getting Surface Tension and Diffusion Coefficients from a Material Stream = | ||
| + | |||
| + | <source lang=python> | ||
| + | |||
| + | import clr | ||
| + | import System | ||
| + | |||
| + | # get feed's interfacial tension - method 1 | ||
| + | |||
| + | mixphase = feed.GetPhase("Mixture") | ||
| + | |||
| + | sftens = mixphase.Properties.surfaceTension | ||
| + | |||
| + | print str(sftens) + " N/m" | ||
| + | |||
| + | # get feed's interfacial tension - method 2 | ||
| + | |||
| + | sftens2 = clr.Reference[System.Object]() | ||
| + | |||
| + | feed.GetTwoPhaseProp("surfacetension", None, "", sftens2) | ||
| + | |||
| + | print str(sftens2.Value[0]) + " N/m" | ||
| + | |||
| + | # diffusion coefficients | ||
| + | |||
| + | phase = feed.GetPhase("Vapor") | ||
| + | |||
| + | compound = phase.Compounds["Methane"] | ||
| + | |||
| + | difc = compound.DiffusionCoefficient | ||
| + | |||
| + | print str(difc) + " m2/s" | ||
| + | |||
| + | </source> | ||
| + | |||
| + | = Other Snippets = | ||
| + | |||
| + | For more code snippets, go to [https://sourceforge.net/p/dwsim/discussion/scripting/ https://sourceforge.net/p/dwsim/discussion/scripting/]. | ||
Revision as of 17:36, 2 July 2019
Contents
Create and Connect Objects
Assuming that you're running a simulation with defined compound(s) and property package(s), this will create and connect a cooler and its connections:
import clr
clr.AddReference('DWSIM.Interfaces')
from DWSIM import Interfaces
# http://dwsim.inforside.com.br/api_help57/html/M_DWSIM_Interfaces_IFlowsheet_AddObject.htm
# http://dwsim.inforside.com.br/api_help57/html/T_DWSIM_Interfaces_Enums_GraphicObjects_ObjectType.htm
cooler = Flowsheet.AddObject(Interfaces.Enums.GraphicObjects.ObjectType.Cooler, 100, 100, 'COOLER-001')
heat_out = Flowsheet.AddObject(Interfaces.Enums.GraphicObjects.ObjectType.EnergyStream, 130, 150, 'HEAT_OUT')
inlet = Flowsheet.AddObject(Interfaces.Enums.GraphicObjects.ObjectType.MaterialStream, 50, 100, 'INLET')
outlet = Flowsheet.AddObject(Interfaces.Enums.GraphicObjects.ObjectType.MaterialStream, 150, 100, 'OUTLET')
cooler.GraphicObject.CreateConnectors(1, 1)
inlet.GraphicObject.CreateConnectors(1, 1)
outlet.GraphicObject.CreateConnectors(1, 1)
heat_out.GraphicObject.CreateConnectors(1, 1)
# http://dwsim.inforside.com.br/api_help57/html/M_DWSIM_Interfaces_IFlowsheet_ConnectObjects.htm
Flowsheet.ConnectObjects(inlet.GraphicObject, cooler.GraphicObject, 0, 0)
Flowsheet.ConnectObjects(cooler.GraphicObject, outlet.GraphicObject, 0, 0)
Flowsheet.ConnectObjects(cooler.GraphicObject, heat_out.GraphicObject, 0, 0)
Getting a reference to a Compound in the simulation
mycompound = Flowsheet.SelectedCompounds['Methane'] mycompound2 = Flowsheet.GetSimulationObject['MSTR-001'].Phases[0].Compounds['Methane']
mycompound and mycompound2 are referencing the same object in memory.
Executing a script from another tab/section
import clr
import System
from System import *
clr.AddReference('System.Core')
clr.ImportExtensions(System.Linq)
# get the script text from "Functions" using LINQ
source = Flowsheet.Scripts.Values.Where(lambda x: x.Title == 'Functions').FirstOrDefault().ScriptText.replace('\r', '')
# execute the script
exec(source)
Setting the properties of a Material Stream
ms1 = Flowsheet.GetFlowsheetSimulationObject('MSTR-001')
overall = ms1.GetPhase('Overall')
overall.Properties.temperature = 200 # set temperature to 200 K
overall.Properties.pressure = 101325 # set pressure to 101325 Pa
overall.Properties.massflow = 14 # set mass flow to 14 kg/s
Getting Surface Tension and Diffusion Coefficients from a Material Stream
import clr
import System
# get feed's interfacial tension - method 1
mixphase = feed.GetPhase("Mixture")
sftens = mixphase.Properties.surfaceTension
print str(sftens) + " N/m"
# get feed's interfacial tension - method 2
sftens2 = clr.Reference[System.Object]()
feed.GetTwoPhaseProp("surfacetension", None, "", sftens2)
print str(sftens2.Value[0]) + " N/m"
# diffusion coefficients
phase = feed.GetPhase("Vapor")
compound = phase.Compounds["Methane"]
difc = compound.DiffusionCoefficient
print str(difc) + " m2/s"
Other Snippets
For more code snippets, go to https://sourceforge.net/p/dwsim/discussion/scripting/.
