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Browsing by Impact Area "Aeronautic Systems"

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An aerodynamic CFD analysis of inlet swirl in a micro-gas turbine combustor

Author: Meyers, Bronwyn C ; Grobler, Jan-Hendrik ; Snedden, GC Date: Jul 2023 A combustor was designed for a 200N micro-gas turbine [1, 2] using the NREC preliminary combustor design method [1, 2, 3]. During the design process, there are various aspects where there are no definitive methodologies for specifying the ... Read more
Feasibility of rotor fault detection from a fluid dynamics perspective

Author: Robbins, SL ; Heyns, PS ; Heyns, Johan A Date: May 2020 The majority of condition monitoring techniques employed today consider the acquisitioning and analysis of structural responses as a means of profiling machine condition and performing fault detection. Modern research and newer technologies ... Read more
The first step towards decarbonized air mobility in South Africa: A hydrogen powered unmanned aerial vehicle

Author: Jamison, Kevin A ; Naidoo, Purusha ; Ramotsabi, Katleho Date: Nov 2022 The South African government is investing in the use of hydrogen fuel as a pathway towards decarbonising transport sectors. Hydrogen is likely to be a viable option for decarbonising air transport and it is being investigated intensively ... Read more
The numerical aerodynamic investigation of swirling inlet flow in a vaporizer tube micro-gas turbine combustor

Author: Meyers, Bronwyn C ; Grobler, Jan-Hendrik ; Snedden, GC Date: Sep 2022 A combustor was designed for a 200N micro-gas turbine for the model aircraft industry using the NREC design method. Multiple designs resulted which varied in terms of annular area split configuration, hole area splits and relative hole ... Read more
Selecting munition design features and operational concepts using a trade study supported by simulated operational scenarios

Author: Jamison, Kevin A ; Roux, Jeanne M ; Zwane, Lindokuhle Date: Sep 2021 A development of an existing munition aimed at an entirely new target set was planned. A trade study was performed to identify the key design features and employment concepts that generate the optimum outcomes in a demanding operational ... Read more
A systems engineering framework for integrating stores with aircraft

Author: Jamison, Kevin A Date: Oct 2023 Military and some civilian aircraft need to carry stores to perform their mission. There is a huge diversity of carriage aircraft and types of stores ranging from missiles, drop tanks, space launchers, and rescue equipment. Adding stores to ... Read more
Two dimensional vortex shedding from a rotating cluster of cylinders

Author: Ndebele, Bright B ; Gledhill, IMA Date: Sep 2023 The dynamics of two-dimensional vortex shedding from a rotating cluster of three cylinders was investigated using Computational Fluid Dynamics (CFD) and Dynamic Mode Decomposition (DMD). The cluster was formed from three circles with equal ... Read more
Wind tunnel testing - A career at high speed - while standing still! 1990-2022

Author: Morelli, Mauro F Date: Nov 2022 This item is the John Weston Memorial Lecture and comprises a conference presentation providing details on a career involving wind tunnel testing (1990-2022). Read more

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Browsing by Impact Area "Aeronautic Systems"

Browsing by Impact Area "Aeronautic Systems"

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