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Blending Dual Time Stepping and Newton-Krylov Methods for Unsteady Flows
Blending Dual Time Stepping Newton-Krylov Methods Unsteady Flows
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2015/7/3
We explore the idea of using nonlinear schemes as preconditioners in Newton-Krylov schemes for unsteady flow computations. Analysis shows that left preconditioning changes the Newton scheme in a...
Optimum Shape Design for Unsteady Flows with Time-Accurate Continuous and Discrete Adjoint Methods
Optimum Shape Design Unsteady Flows Time-Accurate Continuous Discrete Adjoint Methods
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2015/7/2
This paper presents an adjoint method for the optimal control of unsteady flows. The goal is to develop the continuous and discrete unsteady adjoint equations and their corresponding boundary co...
OPTIMUM SHAPE DESIGN FOR UNSTEADY FLOWS USING TIME ACCURATE AND NON-LINEAR FREQUENCY DOMAIN METHODS
ACCURATE NON-LINEAR FREQUENCY DOMAIN METHODS
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2015/7/2
This paper presents an adjoint method for the optimum shape design of unsteady flows. The goal is to develop a set of discrete unsteady adjoint equations and their corresponding boundary conditi...
OPTIMAL CONTROL OF UNSTEADY FLOWS USING A TIME ACCURATE METHOD
OPTIMAL CONTROL UNSTEADY FLOWS USING ACCURATE METHOD
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2015/7/2
This paper presents an adjoint method for the optimal control of unsteady flows. The goal is to develop the continuous and discrete unsteady adjoint equations and their cor responding boundary c...
An Implicit-Explicit Hybrid Scheme for Calculating Complex Unsteady Flows
Implicit-Explicit Hybrid Scheme Calculating Complex Unsteady Flows
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2015/7/2
In current practice, unsteady flow simulations for turbomachinery are performed using a dual-time-stepping scheme. This work is motivated by the need to solve the time accurate Navier-Stokes equ...
Flux Limited Dissipation Schemes for High Speed Unsteady Flows
Flux Limited Dissipation Schemes High Speed Unsteady Flows
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2015/7/1
Within the framework of the Local Extremum Di-minishing (LED) or Essentially Local Extremum Diminishing (ELED) principle, efficient approaches to obtain a class of non-oscillatory high resolution sche...