Using numpy and scipy modules in DWSIM

[Charan]

Thank you, It works perfectly now .

[George Manoti]

Could someone kindly email the ironpkg-1.0.0.py file my email adress is gmanoti123@gmail.com, would be great! I have followed the instructions to the letter and have been unable to aquire the file. Thank you very much, George.

[Premice]

hello thank you very much daniel for your software
I tried to use the lbfgsb algo but i got an error when computing the gradiant

Can you help me ?

here is my code

import clr
import DWSIM
import System
import sys

from DWSIM import *
from System import *

clr.AddReference('DWSIM.MathOps.DotNumerics')
from DotNumerics import *
from DotNumerics.LinearAlgebra import *
from DotNumerics.Optimization import *
from System import Array, Math

def ecart_sortie(param):
    eff_tu = param[0];
    eff_comp = param[1];
    exp011 = Flowsheet.GetFlowsheetSimulationObject("EXP-011");
    comp001 = Flowsheet.GetFlowsheetSimulationObject("COMP-001");
    exhaust = Flowsheet.GetFlowsheetSimulationObject("exhaust");
    exp011.SetPropertyValue("PROP_TU_1",eff_tu);
    comp001.SetPropertyValue("PROP_CO_1",eff_comp);
    Solver.SolveFlowsheet(Flowsheet,1);
    tu_duty = exp011.GetPropertyValue("PROP_TU_3");
    comp_duty = comp001.GetPropertyValue("PROP_CO_3");
    exhaust_temp = exhaust.GetPropertyValue("PROP_MS_0");
    return Math.Sqrt((tu_duty/1000.0-711.0)**2/711.0**2+(exhaust_temp-984)**2/984.0**2);

f = OptMultivariateFunction(ecart_sortie)
df = OptMultivariateGradient(ecart_sortie)

  1204    24/11/2018 09:58:18 Error   Error running script: Traceback (most recent call last):

File "<string>", line 38, in <module>
TypeError: expected Array[float], got float
+ Info</module></string>

[Daniel Medeiros]

Somewhere in your code you need to provide an array of floats as in this example: https://sourceforge.net/p/dwsim/discussion/scripting/thread/7381a728/#223b

[omid]