National Repository of Grey Literature 355 records found  beginprevious341 - 350next  jump to record: Search took 0.00 seconds. 
Directional sensitivity of the hot-wire probes - effect of the geometry and Re
Antoš, Pavel ; Mazur, Oton ; Uruba, Václav
Paper deals with the directional sensitivity of the hot-wire probe. A number of probes with different geometry were experimentally investigated at various Re numbers. Results of the directional function are discussed in detail.
Kalibrace clonkové tratě rotačním průtokoměrem a rezonance systému
Randa, Zdeněk ; Tesař, Václav ; Hrubý, Jan
Rotary piston flowmeters (RPF) are widely used for accurate measurement of gas flow rates. We used it to calibrate a Koennecke-type quadrant nozzle flowmeter. The evaluated discharge coefficient exhibited strange local maxima, even exceeding unity. The phenomenon was sensitive to the length of the tubes connecting the RPF with the calibrated quadrant nozzle. One possible explanation, discussed in the present paper, is the local maxima to be due to acoustic resonance in the system, excited by periodic character of the flow through the RPF. Another possibility is that the also the inertia of the pistons plays a role, the air providing the spring action.
Calibration of the flowmeter of the Venturi tube type
Jonáš, Pavel ; Mazur, Oton ; Uruba, Václav
Experimental set up and measuring technique are described whose were used for the calibration of the flowmeter ŠKODA AUTO in the range from 0,03 m3/s to 0,55 m3/s.
Calibration of the thermoanemometr probes for non-isothermal flow application
Antoš, Pavel
Non-isothermal flow application of thermal anemometry HW-CTA requires special calibrate procedure. Parameters of a calibration rig are presented in the paper.
Experimental investigation of the temperature sensitivity of the hot-wire/film probes and temperature correction
Antoš, Pavel
The paper deals with the fluid temperature effect on the hot-wire anemometer output signal. There is described a correction method which compensate for fluid temperature drift in a constant-temperature anemometer operation.

National Repository of Grey Literature : 355 records found   beginprevious341 - 350next  jump to record:
Interested in being notified about new results for this query?
Subscribe to the RSS feed.