[Pyrokrates]

Hey,


I wrote a program to calculate some values out of a diameter d_p. This diameter is set inside a new dictionary - lets call it someProperties (similar to transportProperties). Now I would like to use more than one diameter to do the same calculation but the number of d_p should be variable e.g. d_p1, d_p2, d_p3, ...
What I want is an array with all this diameters to loop over it so I don´t need to copy paste all my calculations for every single diameter.


Is there any way initialize a list of dimensioned scalars with createFields.H?


If not, how can I stick all single dimensioned scalars in of my dictionary to one list/array, ... for my program?



Here is the snippet of createFields.H

Info<< "Reading particle diameter d_p1\n" << endl;
dimensionedScalar d_p1
(
    CDRProperties.lookup("d_p1")
);

Info<< "Reading particle diameter d_p2\n" << endl;
dimensionedScalar d_p2
(
    CDRProperties.lookup("d_p2")
 );

This is the someProperties dictionary:

d_p1     d_p1     [0 1 0 0 0 0 0]      0.1E-06;
d_p2     d_p2     [0 1 0 0 0 0 0]      100.0E-06;

Thanks in advance



Chris

[shereez234]

Originally Posted by Pyrokrates

Hey,

Is there any way initialize a list of dimensioned scalars with createFields.H?

 dimensionedScalar dp1
    (
        "dp1",
        dimTime,
        someDictionary.lookup("dp1")
    );

If i remember correctly

 dimensionedScalar dp1
    (
        "dp1",
       dimensionSet(0, 1, 0, 0, 0,0,0),
        someDictionary.lookup("dp1")
    );

should work too.

That being said, your someDictionary should look like

dp1 1e-10;
dp2 1e-29;
dp3 100e-10;

and in createFields.H or wherever you call it, allocate dimensions.

[Pyrokrates]

Hello and thank you for the answer. The code you posted is for initialize a dimensionedScalar... what I am looking for is a diemnsionedScalar List or kind of array because I would like to loop over it.


The only working way I found out was this:

dimensionedScalar d_p1
(
    someProperties.lookup("d_p1")
);
dimensionedScalar d_p2
(
    someProperties.lookup("d_p2")
);
dimensionedScalar d_p3
(
    someProperties.lookup("d_p3")
);

dimensioned<double> d_p[3]{d_p1,d_p2,d_p3};

But this seems to be very complicated. Isnt´t there any way to read a list of values to an array directly?


Thanks in advance


Chris

[shereez234]

Originally Posted by Pyrokrates

Hello and thank you for the answer. The code you posted is for initialize a dimensionedScalar... what I am looking for is a diemnsionedScalar List or kind of array because I would like to loop over it.


The only working way I found out was this:

dimensionedScalar d_p1
(
    someProperties.lookup("d_p1")
);
dimensionedScalar d_p2
(
    someProperties.lookup("d_p2")
);
dimensionedScalar d_p3
(
    someProperties.lookup("d_p3")
);

dimensioned<double> d_p[3]{d_p1,d_p2,d_p3};

But this seems to be very complicated. Isnt´t there any way to read a list of values to an array directly?


Thanks in advance


Chris

A list of scalars can be read easily.

First initialize to size one with value one in createFields.H
after that look it up from someDictionary

scalarList dplist(1,1.0);
someDictionary.lookup("mylist") >> dplist;

some dictionary

mylist 4(1e-05 2.0 3.0 4.0);

However, even this way, the dimensions are not allocated at read time of the scalar list.

perhaps allocate later if they all have the same dimension?

Here is another link:
Storing arrays of dimensionedScalar

[Pyrokrates]

Thank you very much. That was exactly what I was looking for.