Browsing School of Engineering by Title
Now showing items 1940-1959 of 2975
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Numerical assessment of the performance of a wastewater pump under off-design operating conditions
(Trinity College Dublin. School of Engineering. Discipline of Mechanical & Manuf. Eng, 2021)Pumps are often key elements of industrial processes, and are commonly used to move water in municipal water schemes and in wastewater treatment of industrial effluents, representing a substantial energy cost. In the ... -
Numerical Evaluation of Fatigue Strength on Mechanical Notched Components under Multiaxial Loadings
(Elsevier, 2011)This paper deals with the fatigue behaviour of complex, three-dimensional, stress concentrations under multiaxial loadings. Starting from the stress field obtained by means of a linear elastic analysis and taking advantage ... -
Numerical Investigation of Bubble Induced Marangoni Convection: Some Aspects of Bubble Geometry
(2008)Thermocapillary or Marangoni convection is a surface tension driven flow that occurs when a gas–liquid or vapor–liquid interface is subjected to a temperature gradient. In the past, the contribution to local heat transfer ... -
Numerical investigation of bubble-induced marangoni convection
(2009)The liquid motion induced by surface tension variation, termed the thermocapillary or Marangoni effect, and its contribution to boiling heat transfer has long been a very controversial issue. In the past this convection ... -
Numerical investigation of woven wire mesh screens for landing gear aerodynamic flow and noise control
(Trinity College Dublin. School of Engineering. Discipline of Mechanical & Manuf. Eng, 2018)Recently, acoustic engineers, researchers, and relevant institutions seek to reduce noise levels associated with the aerodynamic complexities of an aircraft, particularly within close proximity to airport communities. The ... -
Numerical methods for calculation of optical properties of
(2010)Three methods, namely 2?2 and 4?4 transfer matrix methods as well as scattering matrix method, for simulation of the transmission and reflection spectra of the layered structures are described in this paper. The advantages ... -
Numerical methods for the high speed solution of integral equations in wireless communications
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2001)This thesis investigates the the appropriateness of integral equations for use in determining electric field coverage over sub-urban terrain which is illuminated by an arbitrarily placed transmitter. Sub-urban terrain is ... -
Numerical modelling of directional solidification in metal alloys
(Trinity College Dublin. School of Engineering. Discipline of Mechanical & Manuf. Eng, 2018)Manufacturing routes for metal alloy components often involve solidification processes. In order to obtain a product that meets given requirements in terms of mechanical properties, the ability to predict the grain structure ... -
Numerical modelling of parametric resonance of a heaving point absorber wave energy converter
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2015) -
Numerical modelling of the passive control of air pollution in asymmetrical urban street canyons using refined mesh discretization schemes
(2012)This study evaluates the potential of passive controls in asymmetrical street canyons to reduce personal exposure to air pollutants on footpaths. A passive control in the form of a low boundary wall (LBW) may act as a ... -
Numerical optimization of unsteady natural convection heat transfer from a pair of horizontal cylinders
(2016)This paper presents the results of a numerical study of unsteady natural convection heat transfer from a pair of isothermally heated horizontal cylinders in water. In conjunction with the developed ... -
Numerical Study of the Trajectory, Penetration, and Interaction of Single and Tandem Jets in a Crossflow Using LES
(2024)In this paper, a large eddy simulation (LES) method was used to conduct a study on single and tandem jets in a crossflow, focusing particularly on their trajectory, penetration, and interaction. The numerical model was ... -
Numerical vibro/acoustic analysis at higher frequencies
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2003)Accurate modelling of steady-state acoustic and elastic wave phenom ena at higher frequencies, represents a major challenge for current numerical tools. Due to the large amount of computational effort and memory resources ... -
Nutrient loading on subsoils from on-site wastewater effluent, comparing septic tank and secondary treatment systems
(2009)The performance of six separate percolation areas was intensively monitored to ascertain the attenuation effects of unsaturated subsoils with respect to on-site wastewater effluent: three sites receiving septic tank effluent, ... -
Objective and Quantitative acoustic-analysis of musicians dystonia
(Trinity College Dublin. School of Engineering. Discipline of Mechanical & Manuf. Eng, 2020)Musician s Dystonia (MD) is the most common movement disorder affecting musicians. Being a specific phenotype of Dystonia, MD is a focal, task-specific and painless disorder that affects motor control during musical ... -
Objective Assessment of Perceptual Audio Quality Using ViSQOLAudio
(2017)Digital audio broadcasting services transmit substantial amounts of data that is encoded to minimize bandwidth whilst maximizing user quality of experience. Many large service providers continually alter codecs to improve ... -
An objective framework for determination of the air-entry value from the soil?water characteristic curve
(2021)The air-entry value (AEV) suction, marking the transition between saturated and unsaturated soil mechanics, is arguably the most important parameter interpreted from the soil–water characteristic curve (SWCC); its accurate ... -
Observation of an anchoring transition in a discotic liquid crystal
(EDP Sciences, 1998)We report the anchoring transition in a discotic liquid crystal, hexapentyloxytriphenylene (HPT), from edge-on to side-on alignment in a discotic phase. The topology, easy direction of orientation and the coating of the ...