Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Juan P. Pontaza"'
Autor:
Juan P. Pontaza
Publikováno v:
Volume 8: CFD and FSI.
A three-tiered approach is advocated to assess the level of flow-induced vibration (FIV) threat to process piping due to internal flow. The first-tier assessment is a high-level design check on the possibility of FIV. The tier-1 screening does not pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf4613796e68c0cece357ec9196cce37
https://doi.org/10.1115/omae2021-64060
https://doi.org/10.1115/omae2021-64060
Publikováno v:
Volume 8: CFD and FSI.
An active subsea field in the Gulf of Mexico has adopted a thermoplastic composite pipe (TCP) water injection jumper for its waterflood upgrade. The jumper assembly is composed of a TCP span attached to steel piping on either end. The TCP spool is li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60ff73384a9dac8943f6b5af881b066f
https://doi.org/10.1115/omae2021-63918
https://doi.org/10.1115/omae2021-63918
Flow-Excited Acoustic Resonance Vibration Mitigation of Reactor Inlet Piping by a Perforated Annulus
Autor:
Juan P. Pontaza, Wesley K. Pudwill
Publikováno v:
Volume 4: Fluid-Structure Interaction.
Piping vibration had been observed in one of our refinery’s reactor inlet piping for several decades. Vibration levels in inlet piping for reactor ‘D’ and ‘E’ were highest, relative to those in reactor ‘A’, ‘B’, and ‘C’. To cope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24dd341a98d451608d851ad52c9f20e2
https://doi.org/10.1115/pvp2019-93428
https://doi.org/10.1115/pvp2019-93428
Publikováno v:
Volume 5A: Pipelines, Risers, and Subsea Systems.
The water injection system of an FPSO active in the Gulf of Guinea is to increase injection capacity to levels that are threatening from a flow-induced vibration perspective, such that hydrocarbon recovery can be accelerated. A three-tier method base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3f002358832e031bb13638e0064f1a2
https://doi.org/10.1115/omae2019-95019
https://doi.org/10.1115/omae2019-95019
Autor:
Adam Kuzmicki, Moye Wicks, Cole Brady, Carolyn A. Koh, Nevil Fenwick, Karl Gregory Anderson, Gaurav Bhatnagar, Philip Manfield, Scott A. Socolofsky, Franklin Shaffer, Jonathan S. Levine, Juan P. Pontaza, Daniel Lee Crosby, Steve J. Svedeman, Greg Hatton, Robert P. Warzinski, Amadeu K. Sum
Publikováno v:
Energy & Fuels. 26:4167-4176
Hydrates amass beneath and around production equipment and can form in hydrocarbon–seawater jets/plumes. The sources of hydrocarbons in these hydrates are natural seeps or temporary production system leaks. In this paper, some of (i) the formation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3431def7b93fdf05d26cb58393c3077a
https://doi.org/10.1021/ef300261z
https://doi.org/10.1021/ef300261z
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 197:449-463
We present a penalty least-squares finite element formulation for incompressible flows. The pressure degree of freedom is eliminated using the classical penalty approach and the least-squares model is formed in terms of velocity, vorticity, and dilat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::227b389178e9f9a7aba8edff88d7b131
https://doi.org/10.1016/j.cma.2007.06.013
https://doi.org/10.1016/j.cma.2007.06.013
Publikováno v:
Volume 2: CFD and VIV.
When an offshore platform is exposed to a steady current, alternating vortices are shed from its aft at a regular period, creating oscillatory hydrodynamic forces. Under these forces, the platform experiences vortex-induced motions (VIM) close to its
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9799f73d97cbe4bbcc43047d8f5e791
https://doi.org/10.1115/omae2015-42407
https://doi.org/10.1115/omae2015-42407
Autor:
Juan P. Pontaza, J. N. Reddy
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 195:2454-2494
We present least-squares based finite element formulations for the numerical solution of viscous fluid flows governed by the Navier–Stokes equations, as an alternate approach to the well-known weak form Galerkin finite element formulations. The use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58cfaacad9474bb604b89346da7e9cc8
https://doi.org/10.1016/j.cma.2005.05.018
https://doi.org/10.1016/j.cma.2005.05.018
Publikováno v:
International Journal for Numerical Methods in Fluids. 49:657-699
An Erratum has been published for this article in International Journal for Numerical Methods in Fluids 2005, 49(8): 933. We present a local-analytic-based discretization procedure for the numerical solution of viscous fluid flows governed by the inc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::655d4bba131319d6bec6672a359aeb53
https://doi.org/10.1002/fld.1005
https://doi.org/10.1002/fld.1005
Autor:
Juan P. Pontaza, Klaus-Jürgen Bathe
Publikováno v:
Mathematical Models and Methods in Applied Sciences. 12:525-539
We present a (somewhat) new finite element procedure for the analysis of higher Reynolds number fluid flows. While two-dimensional conditions and incompressible fluid flows are considered, the scheme can directly be used for three-dimensional conditi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f9d22934dc8413107bdf46ae2d5cf82
https://doi.org/10.1142/s0218202502001775
https://doi.org/10.1142/s0218202502001775