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The Fluid Flow Between Two Paralel Plates, the Comparison Between the Measruring and The Analytical Solution.
Kárník, Jan ; Hudec, Martin (referee) ; Štigler, Jaroslav (advisor)
This master's thesis is focused on measurement of the velocity profiles in liquids using ultrasound. The thesis describes two executed measurements both in the channel with free surface, both in the square shaped pipe. In the introductory part this work deals with clarifying the theoretical fundamentals associated with the measurement method UVP such as the Doppler effect, the speed of sound in the medium or the acoustic impedance of the environment. The next part describes the execution of the velocity profile measurement in the channel with free surface described and there is also the description of the results achieved during this measurement. In the last part the thesis deals with the measurement of the velocity profile in the square shaped pipe. There is also the comparison between the measured velocity profiles and the velocity profiles calculated using the analytical formula. In the conclusion there is the evaluation of achieved results.
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The Fluid Flow Between Two Paralel Plates, the Comparison Between the Measruring and The Analytical Solution.
Kárník, Jan ; Hudec, Martin (referee) ; Štigler, Jaroslav (advisor)
This master's thesis is focused on measurement of the velocity profiles in liquids using ultrasound. The thesis describes two executed measurements both in the channel with free surface, both in the square shaped pipe. In the introductory part this work deals with clarifying the theoretical fundamentals associated with the measurement method UVP such as the Doppler effect, the speed of sound in the medium or the acoustic impedance of the environment. The next part describes the execution of the velocity profile measurement in the channel with free surface described and there is also the description of the results achieved during this measurement. In the last part the thesis deals with the measurement of the velocity profile in the square shaped pipe. There is also the comparison between the measured velocity profiles and the velocity profiles calculated using the analytical formula. In the conclusion there is the evaluation of achieved results.
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Influence of UVP probes rotation on veocity measurements
Chára, Zdeněk
Experimental investigation was performed to find an influence of UVP probes rotation on velocity profile measurements. It was found that due to the production inaccuracy the rotation of probes could significantly influence the measured profile depending on a geometrical arrangement.
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