Ara es mostren els items 1-15 de 15

    • 3D CFD analysis of generation of bubbles in a double T-junction mini-channel 

      Bakkali Abderrahaman, Amina (Universitat Politècnica de Catalunya, 2018-07-18)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Guo li Taiwan ke ji da xue
      The subject of two or multi-phase flows has become increasingly powerful and important in a wide variety of engineering systems. The aim of our project is to study the bubble generation of the water-air combination in a ...
    • A preliminary study of space debris mitigation based on a swinging tether system 

      Carmona Lopez, Ivan (Universitat Politècnica de Catalunya, 2021-10-27)
      Treball Final de Grau
      Accés obert
      Since the very beginning of sending satellites into space with Sputnik 1 in 1957, humankind has been repeatedly and nonchalantly sending more and more spacecrafts outside the atmosphere without caring at first the future ...
    • Analysis of two-phase flows under microgravity (spatial) conditions using OpenFOAM 

      Moreno Tavira, Carlos (Universitat Politècnica de Catalunya, 2020-07-23)
      Treball Final de Grau
      Accés obert
      Two-phase flows have gained importance over the last years due to their multiple and useful applications in space systems. For example, two-phase flows are used in fuel cells micro-channel networks, in the fluid management ...
    • CFD study of the bubble generation process in a T-junction with inversed flows 

      Dalfo Ferrer, Blanca (Universitat Politècnica de Catalunya, 2018-07-04)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Guo li Taiwan ke ji da xue / Guo li Taiwan ke ji da xue
      Two-phase flow applications are of great interest in the space sector thanks to its advantages, in the recent years, the research on this subject has increased considerably. Some examples can be found in space bioreactors, ...
    • CFD study of the influence of mountain and valley shapes on wind propagation 

      López Gallego, Pedro (Universitat Politècnica de Catalunya, 2019-07-11)
      Treball Final de Grau
      Accés obert
      In the following work an aerodynamic study is explained, which consists in seeing the influence of the earth’s surface on the wind propagation. Specifically in plains, uphill and downhill slopes, basic geometries ...
    • CFD study of two-phase flows in hypergravity conditions with OpenFOAM 

      Espinosa Miguel, Adrià (Universitat Politècnica de Catalunya, 2019-07-11)
      Treball Final de Grau
      Accés obert
      Avui en dia ens trobem a l’epoca m ` es important de l’espai i de l’aire, lo qual ha portat a ´ que la tecnologia s’hagi vist obligada a desenvolupar-se fins al punt de poder ser utilitzada en condicions gravitacionals que ...
    • Characterization of a 2.5 mm internal diameter T-junction and study of the effects of capillary contractions in two-phase flows 

      Salvans, Ariane (Universitat Politècnica de Catalunya, 2012-11-15)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      The performance of a 2.5mm bubble injector is studied and compared with previous results with thinner injectors. The behaviour of the generated two-phase flow in capillary contractions is analysed.
    • Comparació entre dades de simulacions numèriques 3D i experimentals en el procès de generació d’un tren gas-líquid en un capil·lar en forma de “T” 

      Hernàndez Monclús, Isaac (Universitat Politècnica de Catalunya, 2016-10-31)
      Treball Final de Grau
      Accés obert
      This document has been a study of the feasibility of a 3D numerical simulation on a two-phase flow in micro-gravity conditions. Specifically, the mixture of air and water in a T-shaped capillary in the absence of gravity. ...
    • Development of a methodology for the characterization of long-fibre composite materials for crashworthiness applications using CAE 

      Orellana Favero, Rocío (Universitat Politècnica de Catalunya, 2023-09-07)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Applus+ IDIADA
      Composite materials have received a great deal of attention in recent years because of their exceptional mechanical properties and light weight, which make them suitable for a variety of engineering applications. One of ...
    • Direct optimization of three-dimensional, low-thrust space trajectories with variable path constraints 

      Batet Farre, Adria (Universitat Politècnica de Catalunya, 2015-09-14)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   Politecnico di Milano
      Low-thrust propulsion systems are growing in popularity for both Earth orbiting satellites and scientific spacecraft on interplanetary missions. This is thanks to the ability of these systems of traveling during more time ...
    • FlightKeys 5D Performance Study 

      Carballido Mateo, Sergio (Universitat Politècnica de Catalunya, 2019-10-24)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      This Project, performed in VOLOTEA.S.A Airline, has as main objective to check if FlightKeys 5D, the new program for flight planes, is capable to do the needed computation to perform the flights safetly. The main variables ...
    • Honeycomb panel sizing as support to ship payload onboard satellites 

      Fernández Temprado, Raimon (Universitat Politècnica de Catalunya, 2022-07-15)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   SENER
      The objective of this work is the study and sizing of honeycomb panels, as a base/platform for flight equipment on board satellites. The specific structural design and calculation standards have been developed, which allow ...
    • Injector diameter influence in the generation of minibubbles for space applications 

      Sann, Evie (Universitat Politècnica de Catalunya, 2012-07-27)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      To finish my second academic year I have to make a training course, I choose it in the Microgravity Laboratory at the Castelldefels School of Technology (EPSC) of the Technical University of Catalonia (UPC). My report ...
    • Numerical simulation of fluids in microfluidics (microgravity conditions) with OpenFOAM 

      López García, Nuria (Universitat Politècnica de Catalunya, 2023-01-25)
      Treball Final de Grau
      Accés obert
      During the past decades, interest in droplet-based microfluidics has substantially increased due to its wide range of applications, such as biochemical analyses or material synthesis. Therefore, it is essential to predict ...
    • Sistema de gestion de riesgos de seguridad operacional. Amenaza de drones en el Aeropuerto de Barcelona-El Prat. 

      Delgado De La Iglesia, Sonia (Universitat Politècnica de Catalunya, 2018-10-01)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Aeroport de Barcelona
      One of the main objectives of airports is to avoid those factors that compromise them to safety and avert possible incidents such as physical damage to the structure of terminals, aircraft or people. Once a possible risk ...