Info
Diese Frage ist geschlossen. Öffnen Sie sie erneut, um sie zu bearbeiten oder zu beantworten.
which optimization function/algorithm do i use?
3 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
1) I have an objective function which gives heat extracted for a given borehole heat exchange geometry.
2) It has three variables geometry, length and distance
3)geometry variable can be chosen from 1:20 scenarios (only integers)
4)length variable has bonds [50,400];
5)distance has to be optimized
6)Objective function gives the amount of heat extracted for period of time
7)General behavior is that the larger the distance inefficient is the heat storage in given geometry.
Aim is to iterate as soon as possible to a the geometry which give maximum heat storage for an optimized distance between the boreholes.
could anyone please help.
Best wishes, Swarup
0 Kommentare
Antworten (1)
Alan Weiss
am 23 Jul. 2014
I suggest that you do 20 optimizations, one for each value of geometry. The optimizations are over the variable x = [length, distance], where length has bounds. You can use fmincon to perform this optimization, as long as you have a function that maps x and geometry to the heat extracted. If you want to maximize this function, then minimize the negative of the function.
Alan Weiss
MATLAB mathematical toolbox documentation
6 Kommentare
Alan Weiss
am 28 Aug. 2014
No, or at least I do not understand the nonlinfcn statement. Try this:
function [c,ceq] = confunQ(x)
c = @(x)fem3d_optis(4, x(1), x(2));
ceq = [];
Alan Weiss
MATLAB mathematical toolbox documentation
Diese Frage ist geschlossen.
Siehe auch
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!