Identification of Stream Dispersion Coefficients by Adjoint Sensitivity Method

• Published in: Journal of hydraulic engineering (New York, N.Y.) Vol. 125; no. 7; pp. 714 - 724
• Main Authors: Piasecki, Michael, Katopodes, Nikolaos D
• Format: Journal Article
• Language: English
• Published: Reston, VA American Society of Civil Engineers 01.07.1999
• Subjects: Applied sciences; Bathymetry; Brackish; Buildings. Public works; Diffusion; Estuaries; Exact sciences and technology; Freshwater; Hydraulic constructions; Hydrodynamics; Optimization; River flow control. Flood control; Rivers; TECHNICAL PAPERS; Turbulence; Two dimensional; Velocity; ANW, USA, Potomac Estuary; Sensitivity analysis; Stream discharge; Estuaries; Equation; Adjoint method; Hydrodynamic dispersion; Two dimensional model; Concentration measurement; Parametric method; Non linear model; Variational calculus; Numerical simulation; Stream; Particle transport; Method study

A numerical technique is presented for identification of spatially distributed dispersion coefficients for 2D mass transport in vertically mixed rivers and estuaries. The method is based on a nonlinear optimization procedure that minimizes the squared error between observed and computed concentratio...