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Statements

Subject Item
n2:RIV%2F68407700%3A21220%2F09%3A00163080%21RIV10-GA0-21220___
rdf:type
skos:Concept n8:Vysledek
dcterms:description
In mechanics of fluids, shear stress is one of the most important characteristics of a flow pattern. The device makes use of a precisely defined gap between two coaxial cylinders for calibrating a heated shear stress probe. The inner cylinder rotates at a known angular velocity. The probe is aligned with the interior wall of the outer, immobile cylinder. The shear stress profile in the gap is calculated from Navier-Stokes equations and compared with the anemometer reading to determine the calibration constants. The device allows for temperature readings with a 0.1°C accuracy and thus thermal calibration of the probe. The cylinder diameter is 50 mm; the active cylinder height is 250 mm. The device can be used with a wide range of liquids. Used in the domain of laminar flow. One advantage is the enclosed system with a small quantity of liquid used. In mechanics of fluids, shear stress is one of the most important characteristics of a flow pattern. The device makes use of a precisely defined gap between two coaxial cylinders for calibrating a heated shear stress probe. The inner cylinder rotates at a known angular velocity. The probe is aligned with the interior wall of the outer, immobile cylinder. The shear stress profile in the gap is calculated from Navier-Stokes equations and compared with the anemometer reading to determine the calibration constants. The device allows for temperature readings with a 0.1°C accuracy and thus thermal calibration of the probe. The cylinder diameter is 50 mm; the active cylinder height is 250 mm. The device can be used with a wide range of liquids. Used in the domain of laminar flow. One advantage is the enclosed system with a small quantity of liquid used.
dcterms:title
Calibration Device for Shear Stress CTA Probe Calibration Device for Shear Stress CTA Probe
skos:prefLabel
Calibration Device for Shear Stress CTA Probe Calibration Device for Shear Stress CTA Probe
skos:notation
RIV/68407700:21220/09:00163080!RIV10-GA0-21220___
n3:aktivita
n20:P n20:Z
n3:aktivity
P(GA101/05/0675), Z(MSM6840770035)
n3:dodaniDat
n10:2010
n3:domaciTvurceVysledku
n4:6491189 n4:4219120 n4:8190836 n4:8290644 n4:7758332
n3:druhVysledku
n16:G%2FB
n3:duvernostUdaju
n5:S
n3:ekonomickeParametry
náklady na výrobu zařízení 30 000 Kč
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
305763
n3:idVysledku
RIV/68407700:21220/09:00163080
n3:interniIdentifikace
FVZ-240/09
n3:jazykVysledku
n12:eng
n3:kategorie
n15:A
n3:klicovaSlova
Wall Shear Stress; Probe; CTA
n3:klicoveSlovo
n11:Probe n11:Wall%20Shear%20Stress n11:CTA
n3:kontrolniKodProRIV
[CB0B8AC14C08]
n3:lokalizaceVysledku
ČVUT v Praze FS, Technická 4, laboratoře Ústavu mechaniky tekutin a aenergetiky
n3:obor
n19:BK
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n14:GA101%2F05%2F0675
n3:rokUplatneniVysledku
n10:2009
n3:technickeParametry
hmotnost zařízení 10kg, materiál válců mosaz, rozměry 300x200x250mm
n3:tvurceVysledku
Ježek, Jan Adamec, Josef Netřebská, Hana Schmirler, Michal Matěcha, Jan
n3:vlastnik
n18:vlastnikVysledku
n3:vyuzitiJinymSubjektem
n17:N
n3:zamer
n9:MSM6840770035
n13:organizacniJednotka
21220