Wall pressure fluctuations in rectangular partial enclosures

Pagliaroli, Tiziano; Camussi, Roberto

doi:10.1016/j.jsv.2014.12.008

Cited by 11 publications

(2 citation statements)

References 32 publications

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“…The temperature mixing in the flow domain leads to the fluid-dynamic field, so the temperature inhomogeneity can be ascribed to the coupled of vortex located in the living room. This phenomenon is due to the geometry of the living room, which is close enough to a partial rectangular enclosure deeply investigated in fluid-dynamics, among many [36].…”

Section: Resultsmentioning

confidence: 99%

Energy Performance and Thermal Comfort of a High Efficiency House: RhOME for denCity, Winner of Solar Decathlon Europe 2014

et al. 2015

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The increase of people living in large cities and the expansion of new urban areas are keys to defining new sustainable models. It is estimated that about 70% of the EU population lives in urban areas, and it is expected to reach 80% by 2030. Consequently, it is important to find a new concept of buildings that can reduce the total energy consumption. The Solar Decathlon is an international university competition, born in 2002, created by the U.S. State Energy Department (DOE). Students are challenged to design and operate a full-scale, innovative and sustainable house able to exploit solar radiation as its sole energy source. The objective of the competition is to promote research and education in sustainable architecture and solar energy fields. This paper presents an overview on the

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Section: Resultsmentioning

confidence: 99%

Energy Performance and Thermal Comfort of a High Efficiency House: RhOME for denCity, Winner of Solar Decathlon Europe 2014

et al. 2015

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“…The POD is a mathematical procedure, first introduced by Lumley [14], which exploits an orthogonal transformation to extract a set of bases from an ensemble of signals. It provides an energy-efficient decomposition through the principal components that are energetically sorted [15][16][17]. In addition, it does not require any assumption of linearity of the problem under investigation, making it very appealing for the analysis of fluid-dynamic fields.…”

Section: Proper Orthogonal Decompositionmentioning

confidence: 99%

Fluid-Dynamic and Aeroacoustic Characterization of Side-by-Side Rotor Interaction

Nargi,

Candeloro,

De Gregorio

et al. 2023

Aerospace

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An investigation of twin corotating rotors’ interaction effects was performed by load (thrust and torque) measurements, flow field dynamics through Time-Resolved Particle Image Velocimetry, and acoustic emissions using a microphone array. Two rotors, each with a diameter of D = 393.7 mm and equipped with three blades, were investigated in a side-by-side configuration, to simulate a multirotor propulsion system. The mutual distance between the propellers is 1.02 D, and four different rotating speeds, i.e., 2620, 3500, 4360, and 5200 RPM, were explored. In such a configuration, thrust and torque undergo a reduction compared to that found for a single propeller configuration. The level of aerodynamic load fluctuations increases as well. The interaction of the wakes produces a recirculation region at the external periphery of the shear layers. An innovative approach involving the coupling of Proper Orthogonal Decomposition (POD) and Wavelet Transform has been employed to investigate the dominant structures within the flow and their mutual influence. The results reveal that the interacting wakes are dominated by a wave-like motion pulsating at Harmonics of the Blade Passing Frequency (HBPF) of 1/3. Higher orders of POD modes capture coherent vortical structures, including tip vortices pulsating at HBPF = 1. The aeroacoustic investigation shows that the noise level, in terms of the Over All Sound Pressure Level, presents a remarkable increment concerning that generated by the single propeller.

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Numerical Study of Buoyant Flows in Street Canyon Caused by Ground and Building Heating

Battista

Mauri

2016

Energy Procedia

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Wall pressure fluctuations in rectangular partial enclosures

Cited by 11 publications

References 32 publications

Energy Performance and Thermal Comfort of a High Efficiency House: RhOME for denCity, Winner of Solar Decathlon Europe 2014

Energy Performance and Thermal Comfort of a High Efficiency House: RhOME for denCity, Winner of Solar Decathlon Europe 2014

Fluid-Dynamic and Aeroacoustic Characterization of Side-by-Side Rotor Interaction

Numerical Study of Buoyant Flows in Street Canyon Caused by Ground and Building Heating

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