Searched for: subject%3A%22pressure%255C+measurements%22
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Souparnika, Abhijith (author)
This thesis project was carried out as a part of Ultrapersonalised Products & Services (nextUPPS.nl) as a collaboration between TU Delft and Bata Industrials B.V. To integrate new technologies of Industry 4.0 to enhance product and user experience, Bata Industrials, with a facility in Best, Netherlands, partnered with nextUPPS. An...
master thesis 2023
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Moriaux, Olivier (author)
Unsteady surface pressures shed light on the turbulent structures of boundary layer flow, which dictate for a large part the aerodynamic and aeroacoustic performance of aerodynamic bodies submersed in a flow. Remote microphone probes (RMP), e.g., pinhole probes, provide advantages compared to flush-mounted probes because of their reduced sensing...
master thesis 2023
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Jux, C. (author)
Particle image velocimetry (PIV) is the state of the art for quantitative, full-field, 3D flow diagnostics. Despite the maturity of the technique, two bottlenecks are identified which are addressed in this thesis: the achievable measurement volume size, and the optical access to geometrically complex objects. Both aspects are well illustrated...
doctoral thesis 2022
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van Wijk, J. M. (author), de Hoog, E. (author), Talmon, A.M. (author), van Rhee, C. (author)
The hydraulic transport of sediments in sediment–water multiphase mixtures is an important process in nature and many industrial applications. The flows are characterized by complex transient phenomena, in which the overall system scale and the particle scale are equally important. Experimental research into dense mixture flows is focused on...
journal article 2022
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Barsom, Bavly (author)
Supersonic intakes are essential in assuring proper combustion for operating ramjet engines on cruise missiles. However, due to increasing threats and a rapidly changing service environment, today's intakes do not fit anymore to comply with the new set of requirements to tackle the above challenges. Therefore, a novel supersonic intake design is...
master thesis 2021
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Jux, C. (author), Sciacchitano, A. (author), Scarano, F. (author)
An experimental approach for the measurement of the time-average fluid flow pressure over the surface of generic three-dimensional objects is presented. The method is based on robotic volumetric PTV measurements followed by the integration of the pressure gradient. The domain for pressure evaluation is subdivided in two parts: in the...
journal article 2020
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Patil, Kaustubh (author)
In experimental aerodynamics, pressure is an important parameter which provides insight into the various features of the flow around the test object. By obtaining the surface pressure information, various inferences can be drawn such as flow separation, local flow velocity etc. Traditionally, the most common method of obtaining pressure has been...
master thesis 2019
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Bordogna, G. (author), Muggiasca, S. (author), Giappino, S. (author), Belloli, M. (author), Keuning, J.A. (author), Huijsmans, R.H.M. (author), van 't Veer, A.P. (author)
The Flettner rotor is attracting increasing attention as a viable technology for wind-assisted ship propulsion. Nonetheless, the influence of the Reynolds number on the aerodynamic performance of rotating cylinders is still unclear and under debate. The present study deals with a series of wind-tunnel experiments on a large-scale Flettner...
journal article 2019
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Ordoñez Celaya, David (author)
Pressure represents a physical magnitude which allows the characterisation of flow behaviour. Its study is<br/>of great interest for engineering purposes and is broadly reported in the literature. The practical implementation of pressure measurements in industrial wind tunnel facilities involves the use of intrusive pressure probes only able to...
master thesis 2018
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Moreno Castan, Clara (author)
As a response to a socio-economic framework which demands lower fuel consumption and CO<sub>2</sub> emissions, gas turbine manufacturers strive to attain higher thermal efficiency and specific work output in their engines. The enhancement of these two performance parameters is...
master thesis 2018
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Zarikos, I. M. (author), Hassanizadeh, SM (author), van Oosterhout, L. M. (author), van Oordt, W.P. (author)
The measurement of fluid pressure inside pores is a major challenge in experimental studies of two-phase flow in porous media. In this paper, we describe the manufacturing procedure of a micro-model with integrated fibre optic pressure sensors. They have a circular measurement window with a diameter of 260 (Formula presented.), which enables...
journal article 2018
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Galenkamp, H.F. (author), Bosma, C.F. (author)
Designing challenges engineers to develop both economically attractive and safe designs. This might seem a paradox, but with the application of the observational method, wherein safety is checked by real-time monitoring, economic design and safety are united. The observational method is recently successfully applied in the Netherlands during the...
conference paper 2015
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Van Dalen, K.N. (author)
The characterization of porous materials (e.g., sandstone) is very important for geotechnical and reservoir engineers. For this purpose, often use is made of acoustic waves that are sent through the medium. The desired material parameters can then be estimated from the measured signals. However, often only the velocity or the attenuation of the...
doctoral thesis 2011
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Bartels, M. (author)
Fluidized beds comprise a quantity of solid particles that is suspended by an upward flowing gas. They are used for a variety of processes in the chemical industry, such as catalytic reactions, drying, coating and energy conversion. A major problem in industrial practice is the occurrence of unwanted agglomeration, i.e. solid particles adhering...
doctoral thesis 2008
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Van Ommen, R. (author)
doctoral thesis 2001
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Storm van Leeuwen, S. (author)
It is often necessary to correct for delay times in the units of a measurement channel, especially in the case of flight tests. In a pressure measurement channel the sensing orifice is connected to the transducer by a pressure line which may be several meters in length. In this case the pneumatic delay time might well be the major contribution...
report 1990
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den Boer, R.G. (author)
A new postprocessing procedure is applied on the data, acquired in 1981 during the unsteady transonic pressure measurements on a transport-type supercritical wing (LANN-model), oscillating in pitch. The new procedure takes the influence into account of the local boundary layer on the dynamic response of the pressure tubes. This report presents...
report 1989
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den Boer, R.G. (author)
An experimental investigation revealed that the d5mamic response of a given pressure tube depends not only on the mean local pressure and the frequency, but also on the pressure amplitude and the boundary-layer at the tube entrance. By analyzing the flow at the entrance of the tube, the parameters are determined, which possibly play a role in...
report 1988
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Breeman, J.H. (author)
report 1983
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Smith, J. (author)
A "measured-boundary-condition" method for determining 2D wall interference has been developed. It applies measured "wall" pressure distributions and a model representation to determine the 2D interference flow field associated with the presence of the test section walls. Special attention has been paid to the model representation. The...
report 1981
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