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Catalyst mixing problem: Difference between revisions

From mintOC
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<math>
<math>
\begin{array}{llcl}
\begin{array}{llcl}
  \displaystyle \min_{x, w} &-1 + x_1(t_f) + x_2(t_f)  \\[1.5ex]
  \displaystyle \min_{x, u} &-1 + x_1(t_f) + x_2(t_f)  \\[1.5ex]
  \mbox{s.t.} & \dot{x}_1 & = &  u ( 10 x_2 - x_1), \\
  \mbox{s.t.} & \dot{x}_1 & = &  u ( 10 x_2 - x_1), \\
  & \dot{x}_2 & = & u ( x_1 - 10 x_2) - (1 - u \, x_2) ,  \\
  & \dot{x}_2 & = & u ( x_1 - 10 x_2) - (1 - u \, x_2) ,  \\

Revision as of 09:47, 10 April 2016

Catalyst mixing problem
State dimension: 1
Differential states: 3
Discrete control functions: 1
Interior point equalities: 3

The Catalyst mixing problem seeks an optimal policy for mixing two catalysts "along the length of a tubular plug ow reactor involving several reactions". (Cite and problem taken from the COPS library)


Mathematical formulation

The problem is given by

Failed to parse (unknown function "\begin{array}"): {\displaystyle \begin{array}{llcl} \displaystyle \min_{x, u} &-1 + x_1(t_f) + x_2(t_f) \\[1.5ex] \mbox{s.t.} & \dot{x}_1 & = & u ( 10 x_2 - x_1), \\ & \dot{x}_2 & = & u ( x_1 - 10 x_2) - (1 - u \, x_2) , \\ & x(t_0) &=& (1, 0)^T, \\ & u(t) &\in& \[0,1\]. \end{array} }

Parameters

In this model the parameters used are t0=0,tf=1.

Source Code

Model descriptions are available in