搜索结果: 1-15 共查到“流体力学 Unsteady”相关记录15条 . 查询时间(0.078 秒)
Nodal Points and the Nonlinear Stability of High-Order Methods for Unsteady Flow Problems on Tetrahedral Meshes
Nodal Points Nonlinear Stability High-Order Methods Unsteady Flow Problems Tetrahedral Meshes
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2015/7/3
High-order methods have the potential to efficiently generate accurate solutions to fluid dynamics problems of practical interest. However, high-order methods are less robust than lower-or...
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 Three-Dimensional Viscous Flows Using a Nonlinear Frequency-Domain Method
Optimum Shape Design Unsteady Three-Dimensional Viscous Flows Nonlinear Frequency-Domain Method
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2015/7/2
This paper presents an adjoint method for the optimum shape design of unsteady three-dimensional viscousflows.The goal is to develop a set of discrete unsteady adjoint equations and the correspo...
Application of the Time Spectral Method to Periodic Unsteady Vortex Shedding
Time Spectral Method Periodic Unsteady Vortex Shedding
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2015/7/2
The Time Spectral method has been proposed for the fast and efficient computation of periodic unsteady flows. The algorithm has been validated with both 2D and 3D test cases and applied suc...
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...
High-Order Numerical Algorithms for Steady and Unsteady Simulation of Viscous Compressible Flow with Shocks
Steady Unsteady Simulation
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2015/6/18
Theoretical developments of flux reconstruction method
Unstructured high-order methods
The Flux Reconstruction approach
Energy Stable Flux Reconstruction schemes
Flux Reconstruction as Filtere...
Applications of Dual Time Stepping to Fully Implicit Runge-Kutta Schemes for Unsteady Flow Calculations
Unsteady Flow Calculations Time Stepping
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2015/6/18
Accordingly, a fast steady state solver is an essential building block for an implicit
scheme. This leads to a circular situation. We need an implicit scheme for fast
convergence to a steady state, ...
Unsteady mixed flows in non uniform closed water pipes: a Full Kinetic Appraoch
Mixed flows in closed water pipes drying and flooding flows kinetic interpretation of conservation laws kinetic scheme with reflections
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2011/8/16
Abstract: We recall the \PFS} model constructed for the modeling of unsteady mixed flows in closed water pipes where transition points between the free surface and pressurized flow are treated as a fr...
A mathematical model for unsteady mixed flows in closed water pipes
Shallow water equations, unsteady mixed flows, free surface flows, pressurized flows, curvilinear transformation, asymptotic analysis.
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2011/9/13
We present the formal derivation of a new unidirectional model for unsteady mixed flows in non uniform closed water pipe. In the case of free surface incompressible flows, the FS-model is formally obt...
Unsteady aerodynamics modeling for flight dynamics application
Unsteady aerodynamics High angle of attack Mathematical model Flight dynamics Bifurcation analysis Post-stall maneuver
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2012/2/24
In view of engineering application, it is practicable to decompose the aerodynamics into three components: the static aerodynamics, the aerodynamic increment due to steady rotations, and the aerodynam...
Unsteady Viscous Flow Induced by Eccentric-Concentric Rotation of a Disk and the Fluid at Infinity
Eccentric and Concentric Rotation Unsteady Flow Newtonian Fluid
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2009/10/12
The unsteady viscous flow produced by a sudden coincidence of two axes while a disk and the fluid at infinity are initially rotating with the same angular velocity about non-coincident axes is examine...
An unsteady numerical solution of viscous compressible flows in a channel for low mach numbers
CFD FVM low Mach number compressible unsteady flow ALE method Mac-Cormack numerical scheme
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2010/3/11
The work deals with the numerical solution of unsteady flow with low Mach numbers in a two-dimensional channel. The flow is described by the unsteady Navier-Stokes equations (laminar) for the compress...
An experimental investigation of the unsteady flow in a two-stage low-pressure research turbine
axial flow turbine hot-wire measurements rotor-stator aerodynamic interaction
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2010/3/12
Results of an experimental investigation of the unsteady flow in a two-stage low-pressure large-scale research turbine are presented. Velocity and turbulence measurements were performed upstream and d...
Computation of unsteady momentum and heat transfer from a fixed circular cylinder in laminar flow
forced convection circular cylinder Navier-Stokes equations Finite Difference Method
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2010/3/12
This paper presents a finite difference solution for 2D, low Reynolds number, unsteady flow around and heat transfer from a stationary circular cylinder placed in a uniform flow. The fluid is assumed ...