Browsing by Subject "Ambients de microgravetat"
Now showing items 1-20 of 36
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3D CFD analysis of generation of bubbles in a double T-junction mini-channel
(Universitat Politècnica de Catalunya, 2018-07-18)
Bachelor thesis
Open Access
Covenantee: Guo li Taiwan ke ji da xueThe 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 sounding rocket experiment to control boiling by means of acoustic waves
(2018-01-01)
Article
Open AccessOne of the most critical issues when considering long-term space exploration missions is the management and storage of cryogenic propellants. The exposure of storage tanks to radiation and extreme temperatures implies the ... -
Aerobatic parabolic flights in Barcelona : review of research and educational activities
(2019)
Conference report
Open AccessWe present an innovative method of performing parabolic flights with aerobatic single-engine planes. A parabolic platform has been stablished in Sabadell Airport (Barcelona, Spain) to provide an infraestructure ready to ... -
Analysis of the gravity dependence of the performance of a bubble generator
(Universitat Politècnica de Catalunya, 2010-12-23)
Bachelor thesis
Restricted access - author's decision -
Analysis of two-phase flows under microgravity (spatial) conditions using OpenFOAM
(Universitat Politècnica de Catalunya, 2020-07-23)
Bachelor thesis
Open AccessTwo-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 ... -
Bubble and droplet flow phenomena at different gravity levels
(Universitat Politècnica de Catalunya, 2011-07-19)
Doctoral thesis
Open AccessTwo-phase flows are encountered in a wide range of applications both on-ground and in space. The dynamics of such flows in the absence of gravity is completely different from that in normal gravity due to the absence of ... -
Can frozen sperm samples withstand being sent to space? Considering the creation of a sperm bank outside Earth
(International Astronautical Federation, 2019)
Conference report
Open AccessThe aim of the research is to investigate the effects of microgravity exposure on the motility and vitality of human sperm. The likelihood of human reproduction in space relies heavily on the conditions in which human sperm ... -
CFD study of two-phase flows in hypergravity conditions with OpenFOAM
(Universitat Politècnica de Catalunya, 2019-07-11)
Bachelor thesis
Open AccessAvui 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 ... -
Comparison of Two Gas Injection Methods for Generating Bubbles in a T-Junction
(2020-05-28)
Article
Open AccessIn this work, we compare the performance of two different methods for generating bubbles in conditions relevant to microgravity. A T-junction formed by two cylindrical (1 mm of internal diameter) and perpendicular channels ... -
Controlled generation of vapor/liquid slug flows by local boiling in microgravity
(2020-09-01)
Article
Open AccessWe design, construct, and test a device for controlled boiling by means of local vapor bubble formation in a cavity that injects vapor bubbles in a capillary crossflow. The outcome of the device is a regular slug flow of ... -
Design of an experiment for an orbital payload
(Universitat Politècnica de Catalunya, 2018-07-11)
Master thesis
Restricted access - confidentiality agreement -
Disseny d’un sistema automàtic per experimentar amb material farmacològic en condicions de microgravetat:aplicació als transportadors ABC
(Universitat Politècnica de Catalunya, 2008-06)
Master thesis (pre-Bologna period)
Open AccessEl projecte que aquí es presenta és el disseny d’un sistema automàtic que permet realitzar un experiment mèdic en condicions de microgravetat. S’ha estudiat quin era el procediment manual que utilitzava l’equip mèdic i ... -
Droplet collisions after liquid jet breakup in microgravity conditions
(2011)
Article
Open AccessThe droplet dynamics and collisions after a liquid jet breakup have been experimentally studied in low gravity conditions. An experimental setup was designed in order to be used at the I.N.T.A. Drop Tower, which allows ... -
Effects of gravity level on bubble detachment, rise, and bouncing with a free surface
(2019-02-05)
Article
Open AccessBubble detachment, rise, and bouncing upon impact with a free surface is studied experimentally in variable gravity conditions. Previous investigations focused on the effects of fluid properties such as ... -
ESA/ELGRA Gravity-Related Research Summer School
(2018)
Conference report
Open AccessThe European Low Gravity Research Association (ELGRA) and the European Space Agency (ESA) Education Office co -organi se at the ESA Academy’s Training and Learning Centre in ESA -ESEC, Belgium, ... -
ESA/ELGRA gravity-related research summer school
(2019)
Conference lecture
Open Access -
Experimental analysis of bubble size dispersion and Y-junction types of bubble generator
(Universitat Politècnica de Catalunya, 2010-12-23)
Bachelor thesis
Restricted access - author's decisionPrevious studies carried out in the micro-gravity laboratory at the EPSC (Escola Politècnica Superior de Castelldefels) which is a Higher Education School of the Polytechnical University of Catalonia (UPC) allowed to ... -
Experimental analysis of the bubble-slug transition in a minichannel in microgravity conditions
(ELGRA, 2009-09-01)
Conference lecture
Open Access -
Experimental setup building and test for a drop tower
(Universitat Politècnica de Catalunya, 2017-07-18)
Bachelor thesis
Open AccessThis document presents an experiment that will be carried out in the ZARM's drop tower. It has been developed at the Microgravity Laboratory located at the School of Telecommunications and Aerospace Engineering of ... -
Low Weber number jet collision regimes in microgravity
(2017-11-01)
Article
Open AccessThe outcome of the collision between two liquid jets depends on the liquid properties, jet velocity, and impact angle. So far studies on liquid jet impingement have been carried out in normal gravity conditions. In ...
