E. Turkel

Publications273
h-index49
Citations15,353
Highly Influential Citations600
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Numerical solution of the Euler equations by finite volume methods using Runge Kutta time stepping schemes
A new combination of a finite volume discretization in conjunction with carefully designed dissipative terms of third order, and a Runge Kutta time stepping scheme, is shown to yield an effective…
The Ecological Validity of Delay Aversion and Response Inhibition as Measures of Impulsivity in AD/HD: A Supplement to the NIMH Multimodal Treatment Study of AD/HD
TLDR
This study compared the ecological validity of the Stop Signal Task (SST) and Choice-Delay Task (C-DT) measure of delay aversion with their correlations with classroom observations and with ratings of impulsivity and other core AD/HD symptoms on the Conners and SNAP-IV checklists.
Radiation boundary conditions for wave-like equations
In the numerical computation of hyperbolic equations it is not practical to use infinite domains; instead, the domain is truncated with an artificial boundary. In the present study, a sequence of…
Preconditioned methods for solving the incompressible low speed compressible equations
  • E. Turkel
  • Mathematics, Computer Science
  • 1 October 1987
Boundary conditions for the numerical solution of elliptic equations in exterior regions
Elliptic equations in exterior regions frequently require a boundary condition at infinity to ensure the well-posedness of the problem. Examples of practical applications include the Helmholtz…
PRECONDITIONING TECHNIQUES IN COMPUTATIONAL FLUID DYNAMICS
TLDR
Low speed preconditioner for steady-state compressible inviscid fluid dynamic equations that accelerates the convergence to a steady state for problems in which a significant portion of the flow is low speed.
A multistage time-stepping scheme for the Navier-Stokes equations
A class of explicit multistage time-stepping schemes is used to construct an algorithm for solving the compressible Navier-Stokes equations. Flexibility in treating arbitrary geometries is obtained…
Artificial dissipation and central difference schemes for the Euler and Navier-Stokes equations
An artificial dissipation model, including boundary treatment, that is employed in many central difference schemes for solving the Euler and Navier-Stokes equations is discussed. Modifications of…
External flow computations using global boundary conditions
We numerically integrate the compressible Navier-Stokes equations by means of a finite volume technique on the domain exterior to an airfoil. The curvilinear grid we use for discretization of the…
Implicit schemes and LU decompositions
Implicit methods for hyperbolic equations are analyzed by constructing LU factorizations. It is shown that the solution of the resulting tridiagonal systems in one dimension is well conditioned if…
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