Capillary Effects on Liquids Exploratory Research Experiments
How to Participate
The CELERE 2015 experiments will be conducted in three sets, where the submission deadlines are Feb. 1, March 1, and April 1. It is expected that the testing will be conducted within 1 month of the submission deadline, i.e., where test results should be available by March 1, April 1, and May 1.
The following documents should be downloaded as you will need them for background information, as you work on this design challenge and/or to submit your entry as discussed in the Preparation and Submission section below.
CELERE 2015 handbook
CELERE 2015 tutorial
CELERE entry form
CELERE 2015 TESTCELL TEMPLATE (you will need the DraftSight software to open this file)
CELERE hyperlink-lite flyer
Preparation and Submission
Explore the CELERE website at http://spaceflightsystems.grc.nasa.gov/CELERE/
If you are a Facebook user, ‘like’ the CELERE page at www.facebook.com/NASA.celere.
Read the CELERE 2015 handbook.
Learn about capillary action, e.g., through:
Review the past experiments through http://spaceflightsystems.grc.nasa.gov/CELERE/Videos/ and the appendix of the CELERE handbook.
Download the CELERE 2015 tutorial.
Download the 2015 drawing template.. The test cell has been redesigned and use of past templates is unacceptable.
Download the Draftsight CAD software and go through the CELERE tutorial. You may use other CAD software that works with ‘dwg’ files, but the tutorial is based on the free Draftsight software.
Review the CELERE design requirements and common mistakes in the CELERE Handbook.
Develop your research question.
Design your test cell so that (1) the results will answer your research question and (2) it is different from the past CELERE experiments shown in the appendix.
Download the CELERE entry form and fill it out.
Verify that all design requirements are fully met or risk rejection!
E-mail the drawing file and entry form to firstname.lastname@example.org (where this step might be done by your teacher/advisor) by Feb. 1, March 1, or April 1; choose one.
Testing and Analysis
If requested, revise your test cell drawing. Revisions are sometimes requested when entries are tentatively selected even though design requirements are not met.
Selected experiments are normally conducted during the month of their submission deadline.
When the results are ready, we will provide you with a sight to download your results. Note that the video files are not standard, but can be viewed using VLC Media Player, which can be freely downloaded from http://www.videolan.org/vlc/index.html.
Analyze the results by comparing the capillary motion in your test cell’s channels. You can determine the position of the oil in each channel as a function of time (e.g., knowing that high-speed video includes 60 frames per second). The position can be determined in pixels, e.g., using Microsoft Paint, which shows the position of the crosshairs in pixels, and then converted later into millimeters.
From the position data, average speeds can easily be determined.
Prepare a short final report about what you learned, and e-mail the report to email@example.com (where the submission might be done by your teacher/advisor). The report should include discussion of what was good about the CELERE Design Challenge and what needs improvement.
Changes from CELERE 2014
Changes have been made to the test cell design, so please use the 2015 drawing template.
Eligibility has been expanded to include grade 8, i.e., where CELERE 2015 is intended for grades 8-12.
The maximum number of experiments per school or organization has been increased to 15 total (i.e., for all three submission deadlines).
While 100% of the CELERE 2014 entries were selected for fabrication and testing, there is no guarantee that will continue in 2015. However, the odds for selection should continue to be very high this year. This year’s goal is to test 100 student experiments with approx. 30 entries each for Feb., March, and April testing.
page maintained by
Nancy R. Hall, NASA Glenn Research Center
Last Updated on
January 12, 2015