Design and production of a hot-wire anemometer holder using additive manufacturing method

Abu Zaki, Muhammad Syafiq Syazwan (2022) Design and production of a hot-wire anemometer holder using additive manufacturing method. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Hot Wire Anemometers (HWA) are thermal transducers devices that can measure the rate at which thermal energy is transferred from a tiny metallic filament that is submerged in a fluid and is subjected to an electric current. Hot wire anemometer in wind tunnel study about the air stream to determine the velocity and direction of a flow such as aerofoil and car’s aerodynamic. In this project, to design the hot wire anemometer holder, need to consider the proper holder because the measurement for taking the result is crucial especially in long run test. The objective of this project is to design a hot-wire anemometer probe holder that is suitable for different probe sizes using AutoCAD software and to analyse the hot-wire anemometer holder design using finite element analysis (FEA) and produce a prototype of the holder using additive manufacturing method. To design a hot-wire anemometer probe holder that is suitable for different probe sizes, first need to sketch different kind of probe holder. After sketching several type of design, the design will be sorted by house of quality to select the best design that meets the research aim and objectives. Next, the selected design from the house of quality will been drawn in AutoCAD 3D design software. After designing in the AutoCAD software, the selected design file will export to .igs type file to undergo the Finite Element Analysis (FEA) test in Ansys software. After undergo the FEA test, the design with the best result in FEA analysis would be selected as the main design that will representing this project and will undergo 3D printing process (Additive Manufacturing method). As for result, the probe holder that able to move the probe vertically with an appropriate scale is embedded on its body to measure the travel distance of the probe were succeeded created. Finally, the holder can be used for different probe sizes from 1mm to 50 mm diameter and the probe holder's overall dimensions must be appropriate for usage in a small-scale wind tunnel with a maximum test section width of 400 mm.

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