Departament de Mecànica de Fluids
Recent Submissions
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On the changes in dynamic behavior produced by the hydraulic turbine runner damage
(Universitat Politècnica de Catalunya, 2019-07-17)
Doctoral thesis
Open AccessHydropower plays a very important role in the world electricity generation nowadays. Hydropower is one type of renewable energy and is the only renewable energy source that can provide a wide range of power regulation with ... -
Numerical and experimental investigation of spectral domain vibration based indicators for structural health monitoring
(Universitat Politècnica de Catalunya, 2018-05-22)
Doctoral thesis
Open AccessStructural health monitoring has been defined as the acquisition, validation and analysis of technical data to facilitate life- cycle management decisions. It is the result of a convergent path from many previous existing ... -
Assessment of gas-surface interaction modelling for lifting body re-entry flight design
(Universitat Politècnica de Catalunya, 2017-12-01)
Doctoral thesis
Open AccessSpace re-entry is a challenging endeavor due to the harsh thermo-chemical environment around the vehicle. Heat flux being the reference parameter for Thermal Protection System (TPS) design, the total energy transfer can ... -
Influence of the boundary conditions on the dynamic behavior of large hydraulic machines
(Universitat Politècnica de Catalunya, 2018-01-23)
Doctoral thesis
Open AccessNowadays, hydropower plays an essential role in the energy market. With the massive entrance of new renewable sources such as wind or solar power, hydropower is the only renewable generating source that can provide fast ... -
A novel optimization methodology of modular wiring harnesses in modern vehicles : weight reduction and safe operation
(Universitat Politècnica de Catalunya, 2017-06-02)
Doctoral thesis
Open AccessThe weight of electric and electronic components of cars has been uninterruptedly increasing through the last decades, and thus the weight of their wiring harnesses. This fact has awakened the interest of car manufacturers ... -
Effects of flow control on flow past bluff bodies
(Universitat Politècnica de Catalunya, 2016-11-23)
Doctoral thesis
Open AccessThe aim of this Ph.D. thesis, "Effects of flow control on flow past bluff bodies" is to study and analyzes the effects of Flow Control on various aspects and proverbs of flow past bluff bodies. Flow control techniques are ... -
Estudio de mezclas de refrigerantes para un circuito frigorífico aplicado a la deshumidificación del aire
(Universitat Politècnica de Catalunya, 2016-01-21)
Doctoral thesis
Open AccessThe present thesis is undertaken to study the use of an aqueous solution of LiCl as a secondary refrigerant, due to its dehydrating properties, in those refrigeration applications that require mainly the air dehumidification ... -
Energy efficiency of high pressure pneumatic systems
(Universitat Politècnica de Catalunya, 2015-11-27)
Doctoral thesis
Open AccessThe energy efficiency assessment of high-pressure pneumatic circuits is the aim of this dissertation. From a historical perspective the past and cur- rent activities with regards to the energy saving conservation in pneumatic ... -
Modelización de los procesos de conformado en caliente de los aceros microaleados de medio carbono mediante la aplicación de redes neuronales artificiales
(Universitat Politècnica de Catalunya, 2015-09-10)
Doctoral thesis
Open AccessIn this thesis a study was performed to obtain a model of artificial neural network that is able to predict the flow behavior of steel under hot deformation conditions. The hot compression tests are performed on two types ... -
Analysis of the dynamic behaviour of rotating disk-like structures submerged and confined
(Universitat Politècnica de Catalunya, 2014-11-27)
Doctoral thesis
Open AccessThe analysis of the dynamic behaviour of rotating turbomachinery components is of relevant interest to avoid damages or fatigue problems in these parts. To determine the dynamic behaviour of a part of a structure it is ... -
Design tools applied to a trochoidal gear pump
(Universitat Politècnica de Catalunya, 2014-07-31)
Doctoral thesis
Open AccessPositive displacements pumps, as currently designed, produce significant flow pulsations that result in pressure pulsations. These pulsations contribute to the global noise generated by the installation. Moreover, they ... -
Experimental investigation of induced supersonic boundary layer transition
(Universitat Politècnica de Catalunya, 2014-03-28)
Doctoral thesis
Open AccessTurbulence onset within an initially laminar flow is one of the most common phenomenon in Fluid Mechanics, yet is an open field of research. This is due to the many and diverse causes that can trigger turbulence, which ...
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