TRAINING OF WIND SPEED CALIBRATION
TRAINING OF WIND SPEED CALIBRATION
TRAINING OF WIND SPEED CALIBRATION
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The blockage effect<br />
What happens inside the wind tunnel?<br />
• The pressure accumulates against the flow direction.<br />
An influence on the result of the reference is possible.<br />
• The test bed resistance in the wind tunnel raises up and the<br />
volume flow decreases.<br />
• In a closed measuring section the air velocity raises around<br />
the probe. The value at the display increases.<br />
• In an open measuring section the air flow enlarges around<br />
the probe. The value at the display decreases.<br />
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