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Selected RC Elements of Office Building
Žůrek, Jan ; Perla, Jan (referee) ; Švaříčková, Ivana (advisor)
Objective of the bachelor thesis was design and assesment of a flat plate of an administrative building with round hole. The solved ceiling slab is above the first floor. Static analysis of the structure was calculated by Scia Engineer 19 software. The flat plate was assesed to the ultimate limit state and the serviceability limit state. Part of the thesis is also design and assesment of an atypical staircase.
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Selected RC Elements of Office Building
Žůrek, Jan ; Perla, Jan (referee) ; Švaříčková, Ivana (advisor)
Objective of the bachelor thesis was design and assesment of a flat plate of an administrative building with round hole. The solved ceiling slab is above the first floor. Static analysis of the structure was calculated by Scia Engineer 19 software. The flat plate was assesed to the ultimate limit state and the serviceability limit state. Part of the thesis is also design and assesment of an atypical staircase.
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Intermitence factor evaluation by bypass boundary layer transition in flows on rough surface on flat plate
Skála, Vladislav ; Antoš, Pavel
Bypass boundary layer transition in flows on rough surface on flat plate was investigated experimentally. It was measuered cases with combination of roughness of surface by different free stream turbulence intenzity. Hot wire anemometry technique was used. Measuerement were made on flat plate in closed wind tunnel. Flat plate was covered by different roughness foils (sandpapers). Adverse pressure gradient was set by diffuser in tested section of wind tunnel. Grid turbulence of free stream was controlled by grid. Hot wire anemometry technique was used, intermitency factor was evaluated.
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Development of Boundary Layer on a Heated Flat Plate
Antoš, Pavel ; Kuznetsov, Sergeii
An experimental study of boundary layer on a flat plate with heat transfer was done. Temperature and velocity boundary layer development was studied on a uniformly heated flat plate with zero pressure gradient by means of hot-wire anemometry. Several levels of heat flux at the wall were used. The difference between the wall temperature and free-stream temperature was set up to 180 K. Measurements were performed in the closed-circuit wind tunnel with zero pressure gradient at free-stream velocity of 3-5 m/s and turbulence intensity of 0.8 percent. The velocity and the temperature profiles of mean values and fluctuations are presented.
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A comment on the flat plate leading edge shape on laminar-turbulent transition
Antoš, Pavel ; Jonáš, Pavel ; Procházka, Pavel P.
Laminar-turbulent transition region is investigated in zero pressure gradient boundary layers developing on flat plates with different shapes of leading edges namely with the elliptical profile; the superelliptical one and with the thin circle profile. The mean flow field characteristics are presented and discussed. Near downstream from the leading edge are mean velocity profiles very similar to the Blasius solution in all compared configurations. The dramatic effect of the leading edge is ascertained in the beginning of the skin friction coefficient deflection from the course after Blasius solution. The start of deflection is moving downstream in sequence: elliptic – super-elliptic – circle shape. The length of the transitional region shortens in the opposed sequence.
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