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Lecturer(s)
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Kracík Jan, Ing. Ph.D.
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Novosád Jan, Ing. Ph.D.
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Course content
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The course deals with theoretical foundations and practical measurements using experimental approaches of fluid mechanics, thermomechanics and heat transfer. 1. Introduction to experiments and measurements for mechanical engineers. Types of experiments in science and research, development, and in testing the performance parameters of existing equipment. Planning an experiment and its individual stages. General characteristics of the measurement chain. 2. Statistical analysis of experimental data. Types of distribution (Gaussian, uniform, symmetric, asymmetric, bimodal). Mean value, standard deviation, variance. 3. Analysis of uncertainties in measurement. Types of uncertainties (systematic and random). General recommendations for the propagation of uncertainties in the measurement chain. Uncertainty of the final result in a single measurement. Uncertainty of the final result in repeated measurements. Combined measurement uncertainty. Generally recommended procedures for calculating uncertainties. Interpretation of uncertainties given by the manufacturer of sensors. 4. Methods of measuring pressure and temperature. Traditional pressure measuring devices, pressure sensors reference, absolute, differential. Deformation pressure measuring devices, liquid pressure measuring devices, pressure measuring devices with electrical output, devices for measuring very low absolute pressures (vacuum). Thermocouples, RTD sensors, thermistors and pyrometers. 5. Methods of measuring velocity and fluid flow. Pitot probes, CTA probes, LDA probes. Flow meters based on pressure difference (Venturi tube, nozzle, orifice), volumetric flow meters, turbine flow meters, vane flow meters, variable-area flow meters, mass flow meters, electromagnetic flow meters, ultrasonic flow meters and others.
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Learning activities and teaching methods
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Monological explanation (lecture, presentation,briefing), Laboratory work
- Class attendance
- 56 hours per semester
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Learning outcomes
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The course deals with the theoretical basis and practical measurements using experimental methods.
Students will master the work in the laboratory, the ability to prepare and perform an experiment, analyze the measured data. Students will gain basic knowledge about individual experimental methods, which can then be further developed.
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Prerequisites
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unspecified
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Assessment methods and criteria
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Written exam
Credit: active participation in measurements in laboratories, successful defense of the project. Exam: written and oral - demonstration of knowledge of the discussed areas, demonstration of knowledge acquired by participation in the project (measuring methods, theoretical basis of the measured issues), the condition of participation in the exam is to obtain a credit.
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Recommended literature
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Bruun, H. H. HOT-WIRE Anemometry. Oxford Univ. Press, 1995.
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Kopecký, V. Laserová anemometrie. TUL, 2005.
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Kreis, T. E. Handbook of holographic interferometry: optical and digital methods. ISBN 3527405461.
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Kundys, J., Fabián, P., Kozubková, M. Měření žárovým anemometrem. VŠB-TUO, 2004.
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Wienke, B. PTV Uncertainty Quantification ans Beyond. TU Delft, 2017.
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