Mostrando ítems 1-20 de 37

• #### A complex storm system in Saturn's north polar atmosphere in 2018 ﻿

(Springer Nature, 2019-10-21)
Artículo
Acceso abierto
Saturn’s convective storms usually fall in two categories. One consists of mid-sized storms ~2,000¿km wide, appearing as irregular bright cloud systems that evolve rapidly, on scales of a few days. The other includes the ...
• #### Analyzing the performance of a miniature 3D wind sensor for Mars ﻿

(Multidisciplinary Digital Publishing Institute (MDPI), 2020-10-20)
Artículo
Acceso abierto
This paper analyzes the behavior of a miniature 3D wind sensor designed for Mars atmosphere. The sensor is a spherical structure of 10 mm diameter divided in four sectors. By setting all the sectors to constant temperature, ...
• #### Boundary layer flow control using synthetic jets on the flow over a NACA 0012 airfoil ﻿

(2017)
Texto en actas de congreso
Acceso restringido por política de la editorial
Numerical simulations of the ﬂow control using a synthetic jet are presented. The ﬂow considered is around a NACA 0012 airfoil at Re = 5000 and the actuator is located at 6% of the chord from the leading edge. This work ...
• #### ³Cat-4 Mission: a 1-unit cubesat for earth observation with a L-band radiometer and a GNSS-reflectometer using software defined radio ﻿

(2019)
Comunicación de congreso
Acceso restringido por política de la editorial
Global Navigation Satellite System Reflectometry and L-band microwave radiometry have been used for soil moisture, biomass, and cryosphere studies. Combining both technologies in a low-power and cost-effective solution ...
• #### Direct numerical simulation of a differentially heated cavity of aspect ratio 4 with Rayleigh numbers up to 10(11) - Part I: Numerical methods and time-averaged flow ﻿

(2010-01-31)
Artículo
Acceso restringido por política de la editorial
A set of direct numerical simulations of a differentially heated cavity of aspect ratio 4 with adiabatic horizontal walls is presented. The five configurations selected here (Rayleigh numbers based on the cavity height ...
• #### Direct numerical simulation of a differentially heated cavity of aspect ratio 4 with Rayleigh numbers up to 10(11) - Part II: Heat transfer and flow dynamics ﻿

(2010-01-31)
Artículo
Acceso restringido por política de la editorial
This is the second of a two-part paper on five direct numerical simulations of a differentially heated cavity of aspect ratio 4 with adiabatic horizontal walls (Rayleigh numbers based on the cavity height. The numerical ...
• #### DNS of turbulent natural convection flows on the MareNostrum supercomputer ﻿

(2009)
Artículo
Acceso restringido por política de la editorial
A code for the direct numerical simulation (DNS) of incompressible turbulent flows that provides a fairly good scalability for a wide range of computer architectures has been developed. The spatial discretization of the ...
• #### Exploring the performance of a miniature 3D wind sensor under extreme martian winds up to the dust devil scale ﻿

(2019)
Texto en actas de congreso
Acceso abierto
The objective of this paper is to explore the performance of a miniature 3D spherical wind sensor for Mars atmosphere, working under extreme wind speeds, up to the Dust Devil scale. The experimental campaign has been made ...
• #### Flow topology and heat transfer analysis of slotted and axisymmetric synthetic impinging jets ﻿

(2021-06)
Artículo
Acceso restringido por política de la editorial
This work is focused on exploring the flow and heat transfer capabilities for slotted and axisymmetric cavity configurations for synthetic impinging jets; the jet is enclosed between two isothermal parallel plates, impinging ...
• #### Fluid dynamics and heat transfer in the wake of a sphere ﻿

(2019-04)
Artículo
Acceso abierto
Direct numerical simulation and large-eddy simulation have been performed for a heated sphere at Reynolds numbers of $Re=1000$ and $Re=10^4$, respectively. The Prandtl number for both simulations has been $Pr=0.7$. ...
• #### FONAMENTS D' INFORMÀTICA (Examen 2n quadrimestre, 1r parcial) ﻿

(Universitat Politècnica de Catalunya, 2011-04-11)
Examen
Acceso restringido a la comunidad UPC
• #### FONAMENTS D' INFORMÀTICA (Examen 2n quadrimestre, 1r parcial) ﻿

(Universitat Politècnica de Catalunya, 2011-04-11)
Examen
Acceso restringido a la comunidad UPC
• #### From extruded-2D to fully-3D geometries for DNS: a multigrid-based extension of the Poisson solver ﻿

(2010)
Artículo
Acceso restringido por política de la editorial
Direct numerical simulation (DNS) of incompressible flows is an essential tool for improving the understanding of the physics of turbulence and for the development of better turbulence models. The Poisson equation, the ...
• #### Heuristics of node selection criteria to assess robustness of world airport network ﻿

(2017-06-14)
Artículo
Acceso abierto
The world airport network (WAN) is one of the networked infrastructures that shape today's economic and social activity, so its resilience against incidents affecting the WAN is an important problem. In this paper, the ...
• #### Hybrid MPI+OpenMP parallelization of a Navier-Stokes solver for large-scale DNS ﻿

(2011)
Comunicación de congreso
Acceso restringido por política de la editorial
This work presents a parallel Navier-Stokes solver for the large-scale direct numerical simulation (DNS) of incompressible flows with one periodic direction. It is based on a scalable Poisson solver that combines an FFT ...
• #### Hybrid MPI+OpenMP parallelization of an FFT-based 3D Poisson solver that can reach 100000 CPU cores ﻿

(2011)
Texto en actas de congreso
Acceso abierto
This work is devoted to the development of efficient parallel algorithms for the direct numerical simulation (DNS) of incompressible flows on modern supercomputers. A Poisson solver for problems with one uniform periodic ...
• #### Integrating the Science Opportunity Analyzer with a reusable opportunity search framework ﻿

(American Institute of Aeronautics and Astronautics (AIAA), 2020)
Texto en actas de congreso
Acceso restringido por política de la editorial
In our interactions with the Science Opportunity Analyzer (SOA) software, we recognized how its ability to search for geometric events in space is a need for robotic space missions in general. To satisfy this need, we ...
• #### Interaction of Saturn’s Hexagon with convective storms ﻿

(2021-04-26)
Artículo
Acceso restringido por política de la editorial
In March 2020 a convective storm erupted at planetographic latitude 76°N in the southern flank of Saturn’s long-lived hexagonal wave. The storm reached a zonal size of 4,500 km and developed a tail extending zonally 33,000 ...
• #### Jupiter’s Great Red Spot: strong interactions with incoming anticyclones in 2019 ﻿

(Wiley, 2021-04)
Artículo
Acceso abierto
Jupiter’s Great Red Spot (GRS), a giant anticyclone, is the largest and longest-lived of all the vortices observed in planetary atmospheres. During its history, the GRS has shrunk to half its size since 1879, and encountered ...
• #### Large Eddy Simulation of airflow in a single family house ﻿

(2010)
Comunicación de congreso
Acceso restringido por política de la editorial
This work is addressed to contribute to the progress in the determination of indoor air flow in buildings. The air flow in such environments is caused by natural convection, stack and wind effects, infiltration of ambient ...