Zobrazeno 1 - 10
of 75
pro vyhledávání: '"H. R. Tamaddon-Jahromi"'
Publikováno v:
Mechanics of Time-Dependent Materials. 21:455-479
In this paper an experimental method for extensional measurements on medium viscosity fluids in contraction flow is evaluated through numerical simulations and experimental measurements. This measuring technique measures the pressure drop over a hype
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9863e38be257aff354f928cc5c30257c
https://doi.org/10.1007/s11043-017-9337-0
https://doi.org/10.1007/s11043-017-9337-0
Publikováno v:
Computers & Fluids. 23:433-446
In this article, vortex shedding in unsteady flow past a thin plate placed normal to the flow it studied using a Taylor-Galerkin/pressure-correction finite element algorithm. The flows are considered over restricted time periods starting from some in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d009ddb6e75483c29272a975efa753ec
https://doi.org/10.1016/0045-7930(94)90049-3
https://doi.org/10.1016/0045-7930(94)90049-3
Autor:
M.F. Webster, H. R. Tamaddon Jahromi
In this paper, we study the transient flow of branched polymer melts with contrasting shear and elongational properties in planar 4:1 abrupt and rounded-corner contractions. This includes Single and Double Extended forms of the Pom–Pom model (SXPP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cd41ad031838c4c6fe11756681752b5
https://cronfa.swan.ac.uk/Record/cronfa6166
https://cronfa.swan.ac.uk/Record/cronfa6166
This study is concerned with the numerical modelling of the Modified Bautista–Manero (MBM) model, for both steady-state and transient solutions in planar 4:1 contraction flow. This model was proposed to represent the structured composition and beha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::faf7623565e68d326b801983c836ff92
https://cronfa.swan.ac.uk/Record/cronfa5672
https://cronfa.swan.ac.uk/Record/cronfa5672
Publikováno v:
International Journal for Numerical Methods in Engineering. 36:3991-4008
This paper constitutes a numerical study of flow around a cylinder for cases with and without an appurtenance, and throughout a range of Reynolds numbers. This is achieved by solving the two-dimensional evolutionary Navier-Stokes equations using a pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87190b6365a60ef798c5842dd081ead8
https://doi.org/10.1002/nme.1620362305
https://doi.org/10.1002/nme.1620362305
Publikováno v:
International Journal for Numerical Methods in Engineering. 34:741-757
Some recent results are reviewed that indicate the appropriate nature of Taylor–Galerkin based algorithms for solving model convection–diffusion problems accurately in time and for simulating more complex non-Newtonian flows, such as those arisin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8eb5d0098571b1b0f28278f817b3ff65
https://doi.org/10.1002/nme.1620340304
https://doi.org/10.1002/nme.1620340304
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 95:301-315
A number of different model transient flow problems are solved using a finite element algorithm. This algorithm is benchmarked against analytical solutions for both pure diffusion and convection-diffusion problems in two dimensions, and the relative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaa7d185ae795c36843dbea6164a307c
https://doi.org/10.1016/0045-7825(92)90189-q
https://doi.org/10.1016/0045-7825(92)90189-q
Studies on Contraction Flows and Pressure-Drops—Extensional Viscosity and Dissipative Stress Effects
Autor:
H. R. Tamaddon-Jahromi, F. S Syed, M. F. Webster, Albert Co, Gary L. Leal, Ralph H. Colby, A. Jeffrey Giacomin
Publikováno v:
AIP Conference Proceedings.
In this paper, we explore the ability of network‐type models (Phan‐Thien/Tanner PTT) to reflect enhanced pressure drops in contraction/expansion flows (ratio 4:1:4). Severe strain hardening is captured through suitable parametric control, whilst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea6e800d718429afa9553554deefac82
https://doi.org/10.1063/1.2964643
https://doi.org/10.1063/1.2964643
Publikováno v:
International Journal for Numerical Methods in Fluids. 10:327-351
In this paper the development and behaviour of a new finite element algorithm for viscous incompressible flow is presented. The stability and background theory are discussed and the numerical performance is considered for some benchmark problems. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f96923bf6732c0fff9a652f5d63cbba
https://doi.org/10.1002/fld.1650100307
https://doi.org/10.1002/fld.1650100307
Publikováno v:
Numerical Methods for Partial Differential Equations; Mar2005, Vol. 21 Issue 2, p272-296, 25p