Zobrazeno 1 - 10
of 15
pro vyhledávání: '"T. H. Pulliam"'
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics. 64:269-298
An efficient numerical method for solving the Navier-Stokes equations is extended to allow solution of the equations of the Maxwell and Oldroyd B models of viscoelasticity at moderate Reynolds numbers where inertial terms cannot be ignored. The conti
Publikováno v:
Physics of Fluids. 6:700-709
The steady‐state entry flow of an Oldroyd B fluid in a plane channel is treated by perturbation analysis. The model predicts entrance lengths shorter than those of a Newtonian fluid at moderate Reynolds and small elasticity parameter. Previously pr
Publikováno v:
Journal of Fluid Mechanics. 253:173
An investigation of the linear stability and subsequent nonlinear evolution and acoustic radiation of a planar inviscid compressible vortex is presented. The effects of the entropy gradient are investigated, and for the particular entropy profile cho
Autor:
T H Pulliam
Publikováno v:
Applied Numerical Mathematics. 2:441-474
A class of implicit finite difference schemes of the Beam and Warming approximate factorization type will be addressed. The development and analysis of various aspects of this class of schemes will be given along with the motivations behind many of t
Publikováno v:
21st Aerospace Sciences Meeting.
A two-dimensional implicit finite-difference code is applied to the inviscid Euler equations to compute transonic flow past airfoils in order to provide well-documented standard test cases for the general user community. The code is an improved versi
Autor:
H. Lomax, T. H. Pulliam
Publikováno v:
17th Aerospace Sciences Meeting.
Complicated three-dimensional viscous transonic flows about bodies at high angles of attack are solved on the Illiac IV computer. It is shown that certain approximate forms of the compressible Reynolds-averaged Navier-Stokes equations can be computed
Autor:
T. H. Pulliam, R. E. Childs
Publikováno v:
22nd Aerospace Sciences Meeting.
A multigrid method is used to apply Newton's method to the Euler equations in a two dimensional curvilinear coordinate system. The objective is to obtain rapid convergence for steady state problems. Solutions computed with the method evolve in a non-
Autor:
T. H. Pulliam, D. C. Jespersen
Publikováno v:
6th Computational Fluid Dynamics Conference Danvers.
In the present investigation, the basic approach is employed to view an iterative scheme as Newton's method or as a modified Newton's method. Attention is given to various modified Newton methods which can arise from differencing schemes for the Eule
Autor:
T. H. Pulliam, Dartzi Pan
Publikováno v:
24th Aerospace Sciences Meeting.
This paper describes the implementation of a general purpose 3-D NS code and its application to simulated 3-D separated vortical flows over aerodynamic bodies. The thin-layer Reynolds-averaged NS equations are solved by an implicit approximate factor
Publikováno v:
6th Computational Fluid Dynamics Conference Danvers.
An efficient numerical technique to produce accurate solutions to the equations of fluid dynamics is presented where the governing equations are perturbed about an approximate solution and solved by finite-difference methods on a coarsened grid. The