Results 31 to 40 of about 117,892 (308)
Transient growth in the flow past a three-dimensional smooth roughness element [PDF]
, 2013 This work provides a global optimization analysis, looking for perturbations inducing the largest energy growth at a finite time in a boundary-layer flow in the presence of smooth three-dimensional roughness elements.
DE TULLIO, Marco +4 more
core +1 more source
Optimal Transpiration Boundary Control for Aeroacoustics [PDF]
AIAA Journal, 2003 We consider the optimal boundary control of aeroacoustic noise, governed by the two-dimensional unsteady compressible Euler equations. The control is the time- and space-varying wall normal velocity on a subset of an otherwise solid wall. The objective functional to be minimized is a measure of acoustic amplitude. Optimal transpiration boundary control
S. Scott Collis +2 more
openaire +1 more source
Ibn Al-Haitham Journal for Pure and Applied Sciences, 2020 In this paper, the continuous classical boundary optimal control problem (CCBOCP) for triple linear partial differential equations of parabolic type (TLPDEPAR) with initial and boundary conditions (ICs & BCs) is studied. The Galerkin method (GM) is used
Jamil A. Al-Hawasy, Mohammed A. K. Jaber
doaj +1 more source
On homogenization of a mixed boundary optimal control problem
Differential and Integral Equations, 2008 n ...
C. D'APICE, DE MAIO, UMBERTO
openaire +5 more sources
Al-Mustansiriyah Journal of Science, 2018 In this paper the continuous classical boundary optimal problem of a couple linear partial differential equations of parabolic type is studied, The Galerkin method is used to prove the existence and uniqueness theorem of the state vector solution of a ...
Jamil Amir Al-hawasy
doaj +1 more source
Constraints Optimal Control Governing by Triple Nonlinear Hyperbolic Boundary Value Problem
Journal of Applied Mathematics, 2020 The focus of this work lies on proving the existence theorem of a unique state vector solution (Stvs) of the triple nonlinear hyperbolic boundary value problem (TNHBVP) when the classical continuous control vector (CCCVE) is fixed by using the Galerkin ...
Jamil A. Ali Al-Hawasy, Lamyaa H. Ali
doaj +1 more source
The Classical Continuous Optimal Control for Quaternary Nonlinear Parabolic Boundary Value Problems
مجلة بغداد للعلوم, 2023 In this paper, our purpose is to study the classical continuous optimal control (CCOC) for quaternary nonlinear parabolic boundary value problems (QNLPBVPs). The existence and uniqueness theorem (EUTh) for the quaternary state vector solution (QSVS) of
Jamil A. Ali Al-Hawasy +1 more
doaj +1 more source
Optimal boundary control of a nonstandard viscous Cahn-Hilliard system with dynamic boundary condition [PDF]
, 2016 In this paper, we study an optimal boundary control problem for a model for phase separation taking place in a spatial domain that was introduced by Podio-Guidugli in Ric. Mat. 55 (2006), pp. 105-118.
Sprekels, Jürgen +5 more
core +1 more source
Optimal control in models with conductive‐radiative heat transfer
Mathematical Modelling and Analysis, 2003 In this paper an optimal control problem for the elliptic boundary value problem with nonlocal boundary conditions is considered. It is shown that the weak solutions of the boundary value problem depend smoothly on the control parameter and that the cost
K. Birgelis
doaj +1 more source
Optimal boundary control of a viscous Cahn-Hilliard system with dynamic boundary condition and double obstacle potentials [PDF]
, 2014 In this paper, we investigate optimal boundary control problems for Cahn--Hilliard variational inequalities with a dynamic boundary condition involving double obstacle potentials and the Laplace--Beltrami operator.
Sprekels, Jürgen +5 more
core +1 more source