This paper describes a method of visualizing the two-dimensional flow around small bodies by means of a scanning electron microscope (SEM). The advantages, compared to light microscopic methods, are, for example, a greater distance between objective lens and object, a higher depth of focus and the possibility of observing smaller details. The disadvantages are the restriction to certain fluids and the expensive equipment. The described method may be important for the investigation of stationary objects as well as that of unsteady flow. In the near future we shall try to visualize three dimensional flow in a scanning electron microscope scale.
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Denk, V.; Nirschl, H.; Windhab, E. 1990: Interactions between small bodies (e.g. microorganisms, cells) and fluid in enlarged and real scale — Microfluidmechanics. 10th International Congress CHISA 90, Prague, CSFR
Windhab, E.; Denk, V.; Nirschl, H. 1990: Investigations of the stressstrain relationship of small bodies under steady and unsteady conditions. 10th International Congress CHISA 90, Prague CSFR
Windhab, E.; Wolf, B.; Denk, V.; Nirschl, H. 1991: Stress-strain relationship of small deformable bodies under steady and unsteady flow conditions in Newtonian and viscoelastic media. In: Proc Third European Rheology Conference, Congress held at Edinburgh. London: Elsevier
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Denk, V., Nirschl, H. & Bartscherer, H.C. Flow visualization in a scanning electron microscope scale. Experiments in Fluids 11, 401–402 (1991). https://doi.org/10.1007/BF00211795
- Electron Microscope
- Scanning Electron Microscope
- Great Distance
- Objective Lens
- Small Body