Changes between Version 53 and Version 54 of WikiStart

Timestamp:

Sep 20, 2017, 9:40:52 AM (7 years ago)

Author:

steiger5na

Comment:

--

WikiStart

@@ -411 +411 @@
 After a while a branch detached from the slope current at the western corner of the depression entered the depression and recirculated joining the eastern side of the depression (drawing on the experiment paper).
 
-We wanted to keep the same setup and to increase the flow rate to 80L/min in order to have consistency but unfortunately we were running out of time. 
+We wanted to keep the same setup and to increase the flow rate to 80L/min in order to have consistency but unfortunately we were running out of time.
 
 == 7.8 Monday 18 September ==
-The whole day was used to build the extension of the topography to move the source 2m further back. The source sits now at the same position relative to the topography, only 2m further back. The cameras stayed at the same positions. We used this day to process data and to learn more about UVMAT.
+The whole day was used to build the extension of the topography to move the source 2m further back. The source sits now at the same position relative to the topography, only 2m further back. The cameras stayed at the same positions. We used this day to process data and to learn more about UVMAT. 
 
 == 7.9. Tuesday 19 September ==
+=== Experiment EXP18 ===
+Today, first the source had to be attached and the water filled up. Then the particles had to be spread out in the water again. So the experiment didn't start before 11:30. [[BR]]At least, the source was now moved 2m further back and the foam of the source was improved to avoid bubbles leaving the source, which also worked with this flow rate. 
+
+Because the source was mainly too close for the high flow rates, we will only do experiments with flow rates higher than 50 and with a rotation rate of 50. We started with Q = 50l/min and no corner. 
+
+Observations: The flow was much more established, when it reached the view of PCO1. Regular waves occurred along the slope until it reached the first corner. Almost the whole current turned south into the trough.
+
+Notes: The images for HS were accidently only taken for 7min, but restarted again for 7 min (EXP18_B). 
+
+== Experiment EXP19 ==
+We used the same setup at EXP18, just with a flow rate of Q=80l/min. Note that we still used the diaphragme of the original diameter-flow rate curve, which gives an actual flow rate of >90 l/min. We do that to be consistent.
+
   '''' ''6 - Table of Experiments: '''''