Visualizing Fluid Flows: Creating a Schlieren Imaging Apparatus

Chinweze Arinze Everest, Akuchi Ikenna Joshua, Ajukwaeke Ogochukwu Sixtus, Okafor Fred Nnabueze and Uwazuruike Joshua Chidiebube
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Chinweze Arinze Everest: Department of Mechanical Engineering, Nnamdi Azikiwe University, PMB 5025, Awka, Anambra, Nigeria
Akuchi Ikenna Joshua: Department of Mechanical Engineering, Nnamdi Azikiwe University, PMB 5025, Awka, Anambra, Nigeria
Ajukwaeke Ogochukwu Sixtus: Department of Mechanical Engineering, Nnamdi Azikiwe University, PMB 5025, Awka, Anambra, Nigeria
Okafor Fred Nnabueze: Department of Mechanical Engineering, Nnamdi Azikiwe University, PMB 5025, Awka, Anambra, Nigeria
Uwazuruike Joshua Chidiebube: Department of Mechanical Engineering, Nnamdi Azikiwe University, PMB 5025, Awka, Anambra, Nigeria

International Journal of Research and Scientific Innovation, 2024, vol. 11, issue 5, 775-784

Abstract: This work presents the design and fabrication of a schlieren viewing apparatus. In this work, a dual-lens schlieren arrangement was employed to visualise candle flames, gas leakage from a lighter, and gas spray from a gas nozzle. The apparatus consists of two 100mm convex lenses having a focal length of 300 mm each, a light source, a knife-edge, and a camera. The light source and knife-edge are positioned at 300 mm from the first and second lenses, respectively, and the lenses are placed at 850 mm from each other. The equipment was used to simulate candle flames, lighter gas leaking, and gas discharge from a gas nozzle. It was confirmed that the dual-lens schlieren apparatus is an effective way of visualizing different flow phenomena.

Date: 2024
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