Laboratory practice: Schlieren technique for flow visualization
Provider: Ministerstvo školství, mládeže a tělovýchovy
Programme: Interní rozvojová soutěž
Implementation period: 01.01.20 - 30.11.20
Workplace:
Fakulta chemicko-technologická - Ústav energetických materiálů
Investigator: Pachman Jiří
Description:
Optical methods do not always allow for direct tracking of interesting physical events and methods that make otherwise invisible processes visible. One example of such physical events is a flow of transparent environment such as air. The Schlieren visualization method is one of the ways to make the flow of a transparent fluid visible. The principle of the method is to visualize the inhomogeneity of the environment causing the change of density and the index of refraction resulting in deflection of the light path from the light source, its reflection on the parabolic concave mirror, the blocking of the part of the reflected light and the capture of the remaining light by the camera. The technique is widely used in a wide range of disciplines, and in the field of energetic materials it offers the possibility of observation of the processes associated with combustion, initiation of explosives or shock wave propagation
Optical methods do not always allow for direct tracking of interesting physical events and methods that make otherwise invisible processes visible. One example of such physical events is a flow of transparent environment such as air. The Schlieren visualization method is one of the ways to make the flow of a transparent fluid visible. The principle of the method is to visualize the inhomogeneity of the environment causing the change of density and the index of refraction resulting in deflection of the light path from the light source, its reflection on the parabolic concave mirror, the blocking of the part of the reflected light and the capture of the remaining light by the camera. The technique is widely used in a wide range of disciplines, and in the field of energetic materials it offers the possibility of observation of the processes associated with combustion, initiation of explosives or shock wave propagation
