KUNŠTÁTSKÝ
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17.1.1908 Olesnice/CR - 2.1.1982 Slapanice/CR
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Jiři Kunštátský was born in Moravia. He graduated as a civil engineer from the Czech Technical University in Brno VUT in 1932. For the following 32 years he worked in the technical civil service as a designer of irrigation schemes, river training, weir construction and reservoir design. Kunštátský was appointed in 1955 Reader and in 1957 professor at VUT in Brno, and there chaired the Institute of Hydraulics and Hydraulic Structures until 1972 when he lost his sight. He continued to live in Moravia and there passed away at the age of 74.
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Kunštátský pioneered work in the hydraulics of side weirs, the movement of translatory waves in channels, in the emptying processes of irrigation canals and the hydraulics of cross-drainage structures. In his 1971 paper, the hydraulic computation of sideweirs as used in drainage engineering is critically reviewed. The governing equations involve the momentum approach plus an expression for the lateral outflow intensity. For small Froude numbers, the conventional weir flow equation is recommended, subject to additions for larger approach flow conditions that are made up by the effects of lateral flow direction and outflow velocity. Their hydraulic performance may be significantly increased by a linear reduction of the sideweir width along the flow direction, resulting in an almost uniform outflow behavior. Kunštátský's approach was developed by his collaborator Tibor Horský and Viliam Miśkay. Kunštátský also considered extensively the movement of waves in empty canals, as a particular case of the dambreak wave. These waves are governed by a singularity at the wave tip, where frictional effects play a dominant role. Kunštátský's results refer to trapezoidal channel profiles as are typical in engineering application.
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Boor, B., Kunštátský, J., Patočka, C. (1968). Hydraulika pro vodohospodářské stavby. Praha. Kunštátský. J. (1957). Hydraulika a základy hydrologie. Praha.
Kunštátský, J. (1959). Die Bewegung von Translationswellen im leeren Gerinne. Vodohospodársky Časopis 7(4): 287-299 (in Czech, with German Summary).
Kunštátský, J., Maleňák, J., Pejchal. V. (1967). The movement of translation wave into empty prismatic channel. Bulletin VUT (1/2): 91-96 (in Czech, with English Summary). Kunštátský, J. (1971). Das Streichwehr im Lichte neuer Forschungsergebnisse. Vodohospodársky Časopis 19(5): 444-456 (in Czech, with German Summary). Miśkay, V. (1977). Hydraulic analysis of a side wall spillway. Vodohospodársky Časopis 25(6): 561-585 (in Czech, with English Summary).
Novak, P. (2004). Jiri Kunštátský. Personal communication. P

Hydraulicians in Europe 1800-2000 . 2013.

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