Results 61 to 70 of about 55,167 (191)

Transonic Navier-Stokes solutions of three-dimensional afterbody flows [PDF]

open access: yes
The performance of a three-dimensional Navier-Stokes solution technique in predicting the transonic flow past a nonaxisymmetric nozzle was investigated. The investigation was conducted at free-stream Mach numbers ranging from 0.60 to 0.94 and an angle of
Abeyounis, William K.   +3 more
core   +1 more source

Real‐Time Optimal Control of High‐Dimensional Parametrized Systems by Deep Learning‐Based Reduced Order Models

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 1, 15 January 2026.
ABSTRACT Steering a system towards a desired target in a very short amount of time is a challenging task from a computational standpoint. Indeed, the intrinsically iterative nature of optimal control problems requires multiple simulations of the state of the physical system to be controlled. Moreover, the control action needs to be updated whenever the
Matteo Tomasetto   +2 more
wiley   +1 more source

Introduction to COFFE: The Next-Generation HPCMP CREATE-AV CFD Solver [PDF]

open access: yes
HPCMP CREATE-AV Conservative Field Finite Element (COFFE) is a modular, extensible, robust numerical solver for the Navier-Stokes equations that invokes modularity and extensibility from its first principles.
Allmaras, Steven R.   +6 more
core   +1 more source

Comparative Assessment of LES and URANS for Flow Over a Cylinder at a Reynolds Number of 3900 [PDF]

open access: yes, 2007
Numerical simulations utilising turbulence models based on the Reynolds Averaged Navier Stokes (RANS) equations generally exhibit poor performance in predicting separated flow around cylinders.
Ooi, A., Young, M. E.,
core   +1 more source

An experimental and computational investigation of the flow field about a transonic airfoil in supercritical flow with turbulent boundary-layer separation [PDF]

open access: yes
A combined experimental and computational research program is described for testing and guiding turbulence modeling within regions of separation induced by shock waves incident in turbulent boundary layers. Specifically, studies are made of the separated
Levy, L. L., Jr.   +4 more
core   +1 more source

A coarse-grid projection method for accelerating incompressible flow computations

open access: yes, 2012
We present a coarse-grid projection (CGP) method for accelerating incompressible flow computations, which is applicable to methods involving Poisson equations as incompressibility constraints.
San, Omer, Staples, Anne E.
core   +1 more source

Two-dimensional Euler and Navier-Stokes Time accurate simulations of fan rotor flows [PDF]

open access: yes
Two numerical methods are presented which describe the unsteady flow field in the blade-to-blade plane of an axial fan rotor. These methods solve the compressible, time-dependent, Euler and the compressible, turbulent, time-dependent, Navier-Stokes ...
Boretti, A. A.
core   +1 more source

Beyond Mixing-length Theory: a step toward 321D

open access: yes, 2015
We examine the physical basis for algorithms to replace mixing-length theory (MLT) in stellar evolutionary computations. Our 321D procedure is based on numerical solutions of the Navier-Stokes equations.
Arnett, W. David   +5 more
core   +1 more source

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