Changes between Version 224 and Version 225 of WikiStart


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Timestamp:
Oct 19, 2016, 11:03:58 AM (4 years ago)
Author:
davarpan1s
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  • WikiStart

    v224 v225  
    348348The tank was drained, washed and cleaned very carefully. Density measurements of siphon samples from previous experiment were done. A revised experimental plan was prepared based on the conducted experiments so far and all the data on the network was updated to the latest experiment. Fresh water is being prepared (heated up) for new experiments tomorrow.
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    350 '''Wednesday, October 11th 2016'''
    351 
    352 The tank was filled and simultaneously rotated with a rate of 0.8 rpm in the clockwise direction corresponding to Rossby number -1. Density measurements of siphon samples from previous experiments were made. Two experiments were conducted.
    353 
    354 Experiment name: rotstr1_1210a, rotapex2_1210b
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     350'''Wednesday, October 12th 2016'''
     351
     352The tank was filled and simultaneously rotated with a rate of 0.79 rpm in the clockwise direction corresponding to Rossby number -1. Density measurements of siphon samples from previous experiments were made. Two experiments were conducted at the straight section and the 2nd apex respectively.
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     354Experiment name: rotstr1_1210a, rotapex2_1210b. File names: rotstr1_1210a, rotapex2_1210b.
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     356rotstr1_1210a: The total experiment time was 36 mins. Inflow rate started with 10.94 L/s and then was decreased to 5.94 L/s until it reached a constant level. Density excess and temperature were 19.9 kg/m^3^ and 24°C, respectively. At the start of the experiment large particles were injected for PIV and measurements were collected. After PIV measurements were done smaller particles were injected for ADV data collection. ADV data were collected at the straight section (Position X1 - 75% down straight section, 56 cm upstream from the end of the straight section) from 15 to 25 min after the flow rate became constant. 7 sets of siphon samples were collected at 5, 10, 15, 25, 30, and 35 minutes after the start of the experiment, with duration of 1 minute. The cross stream UVP collected data from 5 to 15 minutes, and the down-stream UVP collected data from 25 to 35 minutes. The fire alarm distracted this experiments which cause two issues. First th 4th set of siphon samples (t = 20 min) were not collected and second at the start of the ADV measurement the particles were from PIV and at later time smaller particles were injected.
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     358rotapex2_1210b: The total experiment was 30 minutes. Temperature and density excess were 23.7°C and 21.4 kg/m^3^, respectively. Inflow rate started with 10.63 L/s and then was decreased to 5.81 L/s until it reached a constant level. ADV measurements were collected from 15 to 35 minutes after the start of the experiment at the second apex (Position X4).
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     361'''Thursday, October 13th 2016'''
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     364'''Friday, October 14th 2016'''
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