Milan Pavelek – Eva Janotkova Project COST G3.20 and MSMT 262100001 FRONT PAGE EVALUATION OF RECORDS OF FLOW VISUALIZATION OBTAINED DURING RESEARCH ON.

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Milan Pavelek – Eva Janotkova Project COST G3.20 and MSMT FRONT PAGE EVALUATION OF RECORDS OF FLOW VISUALIZATION OBTAINED DURING RESEARCH ON VENTILATION Brno University of Technology Czech Republic 1

The visualization experiments are implemented in: EXPERIMENTS 2 Scale models with the help of Mach-Zehnder interferometer Industrial spaces with the help of fog or smoke A test room of 8.5 x 4.8 x 3.5 m size with the help of fog or smoke (or PIV)

The below figures show records of flow visualization with the help of fog obtained in glassworks and in the test room. FLOW VISUALIZATION WITH FOG 3 Research into heat stress reduction of glass- making line operators Research into flow shapes from outlets in the test room

INTERFEROMETRIC VISUALIZATION 4 The following figures show interferometric records of flow visualization obtained in scale models in our optical laboratory. L 2 Research into free non- isothermal jets from outlets Research into non- isothermal jets from outlets around obstacles

EVALUATION OF INTERFEROGRAMS 5 The interferograms are processed and evaluated by our Interfer software.  Courses of fringes  Distribution of fringes in a cut, etc. We can edit all this data and transfer them into another software. The Interfer 3.0 software automatically finds:

DETERMINATION OF JET BOUNDS 6  Courses of jet bounds  Distribution of intensity in a cut, etc. The Interfer-Visual 4.0 software also works with video sequences and determines: This figure shows the function of Photometry in determination of jet bounds with small amount of fog.

TRANSFORMATION OF RECORDS 7 The below figures show application of the function of Addition of two images and the function of Interferogram for determination of jet bounds. += 2.5 m

Our software includes functions for evaluation of records obtained both interferometrically and with the help of fog or smoke. CONCLUSIONS  CONCLUSIONS 8 Our experiments are implemented under laboratory as well as field conditions. Boundaries and shapes of air flow are typical results of these experiments and can serve as a basis for evaluation of other values. The software increases efficiency of the research.

CONTACT 9