Results 221 to 230 of about 45,803 (270)

Quantitative colour schlieren development

Journal of Visualization, 2014
This work evaluates the potential for producing quantitative data of the density field using a two-dimensional colour schlieren system within the test section of a shock tube. Density gradient components, magnitude and direction, form the basis of the quantitative evaluation.
Duncan Stevenson, Beric Skews
openaire   +1 more source

A Schlieren Microscope

SPIE Proceedings, 1985
A Schlieren microscope is described which can be used to measure profiles of optical quality surfaces. The intensities in the image field are measured with a photo-diode array. By measuring a reference sample and the object, both with and without knife it is possible to correct for different errors.
openaire   +1 more source

Single source/cutoff grid, self-aligned focusing schlieren system

Experiments in Fluids, 2022
Joshua M. Weisberger, B. Bathel
semanticscholar   +1 more source

Enhancement of signal-to-noise ratio of schlieren visualization measurements in low-density wind tunnel tests using modal decomposition

Journal of Vision, 2022
Tsuyoshi Shigeta, T. Nagata, T. Nonomura, Keisuke Asai   +3 more
semanticscholar   +1 more source

Schlieren Image Velocimetry of Swirl Sprays

Flow Turbulence and Combustion, 2022
D. Machado, Fernando de Souza Costa, J. C. de Andrade, G. S. Dias, G. A. A. Fischer   +4 more
semanticscholar   +1 more source

A schlieren motion estimation method for seedless velocimetry measurement

, 2019
Schlieren imaging is a widely used technique for flow visualization in thermal fluid investigations due to its high sensitivity, flexibility and ease of use.
Qian Wang, Yu Wu, H. Cheng, X. Mei, C. Zhao   +4 more
semanticscholar   +1 more source

Schlieren

Das Album hat 73 paginierte Seiten mit 372 eingeklebten Zeichnungen (nach heutiger Zählung 343), seine Entstehungszeit ist ...
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Review and update of lens and grid schlieren and motion camera schlieren

The European Physical Journal Special Topics, 2010
Optical density variation in fluids and transparent solids can often be studied by examining the effect of refraction of light passing through the medium. The schlieren technique has proven to be particularly well suited for these applications, and has been widely used for wind-tunnel studies.
openaire   +1 more source

Rainbow schlieren and its applications

Applied Optics, 1984
In this modification of the schlieren apparatus the knife-edge is replaced by a radial-rainbow filter with a transparent center and opaque surround. Consequently, refractive-index inhomogeneities in the test section appear varicolored, whereas uniformities appear white.
openaire   +2 more sources

Schlieren imaging and the real world

Journal of Visualization, 2013
Two approaches are presented that allow one to place typically abstract visualizations of compressible flows or other transparent objects with refractive index variations into a realistic and easily accessible context, without the need for a large-scale optical system.
openaire   +1 more source