Results 1 to 10 of about 2,439 (159)

Review of continuous adjoint method for inverse design of indoor thermal environment [PDF]

open access: yesE3S Web of Conferences, 2022
The continuous adjoint method has been used in the indoor environment for more than ten years, but it has not been widely used up to now. This paper describes the current state of the continuous adjoint method and presents an overview of the continuous ...
Zhao Xingwang, Yin Yonggao
doaj   +2 more sources

Aerodynamic Optimization Based on Continuous Adjoint Method for a Flexible Wing [PDF]

open access: yesInternational Journal of Aerospace Engineering, 2016
Aerodynamic optimization based on continuous adjoint method for a flexible wing is developed using FORTRAN 90 in the present work. Aerostructural analysis is performed on the basis of high-fidelity models with Euler equations on the aerodynamic side and ...
Zhaoke Xu, Jian Xia
doaj   +2 more sources

The unsteady continuous adjoint method for minimizing flow-induced sound radiation [PDF]

open access: yesJournal of Computational Physics, 2019
This paper develops the unsteady continuous adjoint method for aeroacoustic problems governed by time-dependent turbulent flows. To predict flow-induced sound radiation from a body in free-stream, an incompressible Improved Delayed Detached Eddy Simulation is firstly performed.
, Evangelos Papoutsis Kiachagias
exaly   +2 more sources

Shape identification for convection–diffusion problem based on the continuous adjoint method

open access: yesApplied Mathematics Letters, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wenjing Yan, Zhiming Gao
exaly   +2 more sources

A multiphase CMAQ version 5.0 adjoint [PDF]

open access: yesGeoscientific Model Development, 2020
We present the development of a multiphase adjoint for the Community Multiscale Air Quality (CMAQ) model, a widely used chemical transport model. The adjoint model provides location- and time-specific gradients that can be used in various applications ...
S. Zhao   +19 more
doaj   +1 more source

Continuous Adjoint Topology Optimization of Duct Flow Configurations with Explicit Volume Constraint for Design Variable Update

open access: yesEnergies, 2022
The adjoint method is a very promising gradient-based optimisation framework for computational fluid dynamics (CFD), because of its independence of the computation cost from the number of design variables.
Mirza Popovac
doaj   +1 more source

Continuous Adjoint Method for Unstructured Grids [PDF]

open access: yesAIAA Journal, 2008
Adjoint-based shape optimization methods have proven to be computationally efficient for aerodynamic problems. The majority of the studies on adjoint methods have used structured grids to discretize the computational domain. Because of the potential advantages of unstructured grids for complex configurations, in this study we have developed and ...
Antony Jameson   +2 more
openaire   +1 more source

A 4D-Var inversion system based on the icosahedral grid model (NICAM-TM 4D-Var v1.0) – Part 1: Offline forward and adjoint transport models [PDF]

open access: yesGeoscientific Model Development, 2017
A four-dimensional variational (4D-Var) method is a popular algorithm for inverting atmospheric greenhouse gas (GHG) measurements. In order to meet the computationally intense 4D-Var iterative calculation, offline forward and adjoint transport models are
Y. Niwa   +10 more
doaj   +1 more source

Adjoint based state estimation of compressible flow in porous media

open access: yesPetroleum, 2021
In this paper, we study the state estimation of compressible single phase flow in compressible porous media. The initial pressure distribution is estimated according to discrete adjoint approach based on the collected well pressure data.
Yanbin Sun, Zhibin Liu, Yanjie Hu
doaj   +1 more source

Cathode Shape Design for Steady-State Electrochemical Machining

open access: yesAlgorithms, 2023
The inverse or cathode shape design problem of electrochemical machining (ECM) deals with the computation of the shape of the tool cathode required for producing a workpiece anode of a desired shape.
Jinming Lu, Ewald A. Werner
doaj   +1 more source

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