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An Optimal Control of Dissolved Oxygen in Shallow Water Flow

T. Sekine, M. Kawahara
Proceedings of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing   unpublished
The purpose of this paper is to to present a control method of dissolved oxygen(DO) using the first order adjoint method. In the optimal control theory, the control variable is obtained by the minimization of the performance function. The gradient of performance function updates the control variable. The control variable is computed so as to minimize the performance function under the constraint of the state equations and boundary conditions. In this research, velocity of river is defined as
more » ... er is defined as control variable. As the state equation, the coupled the shallow water equation with the advection diffusion equation is applied. DO which is diffused by the shallow water flow is controled by the input water flow. In the numerical study, example of optimal control of DO is shown using simple rectangular model and Teganuma river.
doi:10.4203/ccp.91.251 fatcat:rzmydgxp6bcbxbf2zuszgfaduq