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Showing 1 to 20 of 35 for “"3D CFD"”.
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Aerodynamics Analysis of Small Horizontal Axis Wind Turbine Blades by Using 2D and 3D CFD Modelling
… simulation through Computational Fluid Dynamics (CFD) software offers inexpensive solutions to aerodynamic blade analysis problem. In this study, two-dimensional aerofoil (i.e. DU-93 and NREL-S809) CFD models are presented using ANSYS-FLUENT software. Using the Spalart-Allmaras turbulent …
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Study of Ultra-low Emissions Diesel Combustion Systems by Synergetic Application of 3D-CFD and Single-Cylinder Engine
L'abstract è presente nell'allegato / the abstract is in the attachment
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An assessment of body force representations for compressor stall simulation
… body force representation constructed from 3D CFD calculations. The radial distribution of body forces is compared to that of a body force representation based on axisymmetric streamline curvature (SLC) calculations, and shown to be in qualitative agreement except in the vicinity of the …
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Approaches to Simulation of an Underground Longwall Mine and Implications for Ventilation System Analysis
… modeling and Computational Fluid Dynamics (CFD) models. Networking modeling is the most prevalent modeling technique in the mining industry. However, a gob area, which is a void zone filled with broken rocks after the longwall mining, cannot be simulated in an accurate way with networking …
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Analysis of complex flows in safety valves using CFD
… was to utilise Computational Fluid Dynamics (CFD) tools available to industry - primarily ANSYS FLUENT and ANSYS Workbench - to develop a modelling methodology which could allow CFD to be relied upon and be used as an analysis/design tool within the Pressure Relief Valve (PRV) industry. This …
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CFD Modelling of the Mixture Preparation in a Modern Gasoline Direct Injection Engine and Correlations with Experimental PN Emissions
A detailed 3D CFD analysis of a modern gasoline direct injection (GDI) engine is carried out to reveal the connections between pre-combustion mixture indicators and PN emissions. Firstly, a novel calibration methodology is introduced to accurately predict the widely used characteristics of the …
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Design and numerical analysis of an unconventional surface-piercing propeller for improved performance at low and high speeds
… conditions. Computational fluid dynamics (CFD) of the 2D profiles informed changes to the profile shapes until lift-to-drag (L/D) was maximized while ensuring a fully-encompassing vapor cavity. The complete propeller was drafted from these optimized radial sections for full 3D CFD analysis. …
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Developing Co-current and Counter-current Spray Drying Computational Fluid Dynamics (CFD) Simulation Studies to Predict the Quality of Microencapsulated Fish Oil with Egg White Hydrolysates Powders
… Three-dimensional computational fluid dynamics (CFD) simulations were performed to study the effect of co-current and counter-current spray drying configurations on the quality of microencapsulated fish oil with EWH powders in the last section of this work. Also, the separation of powder …
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Aerodynamic design and analysis of small horizontal axis wind turbine blades
… approach and the computational fluid dynamics (CFD) based approach. From this research, it is possible to draw a series of detailed guidelines on small wind turbine blade design and analysis. The research also provides a platform for further comprehensive study using these two approaches. The …
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MRI Studies of Gas Hydrodynamics in Automotive Particulate Filters
… predicted. Possible challenges facing future CFD comparisons with this work are also explored. The gas flow fields in the channels are measured, allowing calculation of the through-wall or filtration velocity. This provides data for comparison with 1D and 3D CFD models at a range of flow …
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Testing of a microrocket engine turbopump
… design, modelling, fabrication, and testing. A 3D CFD simulation of the pump was run and performance predicted. Cavitation risk was shown to be small. A fabrication process flow was set up and continuously improved using the feedback from experiments. Non-destructive fabrication inspection …
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Performance Improvement through Velocity Triangle Optimization-Driven Redesign for Mitigating the Horseshoe Vortex in Axial Turbines
… span-wise boundary conditions, obtained from 3D CFD, to establish new velocity triangles at the hub and tip regions, and to redesign the corresponding airfoil sections in light of the newly acquired triangles.</p> <p>The presented results from a 1.5-stage axial turbine simulation demonstrate …
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Computational and Experimental Comparison of a Powered Lift, Upper Surface Blowing Configuration
<p>In the past, 2D CFD analysis of Circulation Control technology have shown poor comparison with experimental results. In Circulation Control experiments, typical results show a relationship between lift coefficient, CL, vs blowing momentum coefficient, Cμ. CFD analysis tend to over-predict values …
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Improvements on performance of a heat pump water heater system
… of water in the storage tank, then 3D CFD simulation has been used to explore the entrance effects on the thermal tank. In the drop-in experiments, it is shown that R1234yf can be a desirable alternative for the baseline R134a without any special changes to the heat pump facility. By …
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Modeling of combustion in spray-guided spark-ignition engines
… of the combustion model into the used 3D CFD code is exemplified and validated. Afterwards, the physical combustion model is validated in chapter seven, using experimental data of premixed turbulent combustion in a constant-volume vessel and in a natural gas spark-ignition engine. In …
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Mount Interference and Flow Angle Impacts on Unshielded Total Temperature Probes
… 30°. High-fidelity Computational Fluid Dynamics (CFD) simulations with Conjugate Heat Transfer (CHT) were performed in conjunction with the experiments to provide key heat transfer information and flow visualizations. It was identified that unshielded total temperature probes have reduced …
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Study to characterise the performance of micro tubular solid oxide fuel cells by the invention of an avant garde experimental apparatus and computational modelling.
… through a combination of experimental work, CFD modelling and numerical analysis. CFD models with an additional fuel cell module have been compared to experimental results for single cells with relation to oxygen concentration, fuel utilisation, I/V curves and external cell temperature …
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Fluid-structure Interaction and Multidisciplinary Design Analysis Optimization of Composite Wind Turbine Blade
… is predicted with 2D airfoils analysis, while 3D CFD analysis is performed by ANSYS CFX software. The second step yields optimal material, composite layup distribution of the blade and involves fluid structure interaction system hence actual pressure loads on the blade can be used for the …
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Jp-8 Surrogates For Diesel Engine Application: Development, Validation, And Cfd Simulation
… for its use with computational fluid dynamics (CFD) codes for enabling time-efficient diesel engine cycle simulation. In order to achieve this goal, a new approach was developed for the formulation of surrogate for compression ignition engine application. The development approach required the …
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CFD study of the combustion of innovative fuels in blast furnaces for sustainable iron making
… thesis, several computational fluid dynamics (CFD) models are developed and applied to simulate the combustion of innovative fuels under real BF conditions. Firstly, a 3D CFD model is developed to simulate the flow and thermochemical behaviours of the pulverised biomass injection (PBI), and …
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