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Govindan, Sesha N C; Dreyer, Michael E (2023): Experimental investigation of liquid interface stability during the filling of a tank in microgravity [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.956532

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Published: 2023-03-14 • DOI registered: 2023-04-04

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Abstract:
The storage of propellants in space as well as the transfer and filling of spacecraft tanks is a prerequisite for future long-term space exploration missions. In this work, the vented filling of a partially filled tank, which is envisioned as a spacecraft tank, was investigated experimentally under compensated gravity in the Bremen Drop Tower. Experiments were performed with a partially filled tank and a test liquid HFE-7500. The drop tower provides 9s of compensated gravity. The shape of the free liquid surface inside a right circular cylinder changes from the normal gravity configuration to a free fall configuration during the test. The fillling was initiated after 3.5s and continued until the end at 9s. The interaction of the incoming liquid jet with the liquid interface was studied for different volumetric flow rates. A stable, but not steady liquid interface was characterized by a deformation due to the incoming liquid jet and the formation of a geyser. The growth of the geyser and the following disintegration into liquid droplets indicated an unstable liquid interface. Subcritical, critical and supercritical regimes of the volumetric flow rates were identified to classify stable and unstable liquid interfaces. The critical Weber number was found to be 1.04, which corresponds to a critical volumetric flow rate of 1.30mL/s. This critical Weber number was compared with the existing literature. Additionally, the behaviour of the liquid interface during the reorientation of the liquid inside the tank was observed.
Keyword(s):
Drop tower experiment; Interface stability; Liquid reorientation; Microgravity; Vented filling; Weber number
Related to:
Govindan, Sesha N C; Dreyer, Michael E (2023): Experimental Investigation of Liquid Interface Stability During the Filling of a Tank in Microgravity. Microgravity Science and Technology, 35(3), 23, https://doi.org/10.1007/s12217-023-10044-1
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Binary ObjectBinaryGovindan, Sesha N C
2 TitleTitleGovindan, Sesha N C
3 File nameFile nameGovindan, Sesha N C
4 File formatFile formatGovindan, Sesha N C
5 Binary Object (File Size)Binary (Size)BytesGovindan, Sesha N C
6 DescriptionDescriptionGovindan, Sesha N C
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 2 (ProcLevel2)
Size:
80 data points

Data

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1 
Binary		2 
Title		3 
File name		4 
File format		5 
Binary (Size) [Bytes]		6 
Description
F8.zipDrop tower experiment F08F8.zipBMP3 GBytesRefer to the Read-Me-F08 file. Subcritical flow regime.
F10.zipDrop tower experiment F10F10.zipBMP3 GBytesRefer to the Read-Me-F10 file. Subcritical flow regime.
F26.zipDrop tower experiment F26F26.zipBMP3 GBytesRefer to the Read-Me-F26 file. Subcritical flow regime.
F11.zipDrop tower experiment F11F11.zipBMP3 GBytesRefer to the Read-Me-F11 file. Subcritical flow regime.
F12.zipDrop tower experiment F12F12.zipBMP3 GBytesRefer to the Read-Me-F12 file. Subcritical flow regime.
F28.zipDrop tower experiment F28F28.zipBMP3 GBytesRefer to the Read-Me-F28 file. Subcritical flow regime.
F24.zipDrop tower experiment F24F24.zipBMP3 GBytesRefer to the Read-Me-F24 file. Critical flow regime.
F25.zipDrop tower experiment F25F25.zipBMP3 GBytesRefer to the Read-Me-F25 file. Critical flow regime.
F19.zipDrop tower experiment F19F19.zipBMP3 GBytesRefer to the Read-Me-F19 file. Supercritical flow regime.
F30.zipDrop tower experiment F30F30.zipBMP3 GBytesRefer to the Read-Me-F30 file. Supercritical flow regime.
F22.zipDrop tower experiment F22F22.zipBMP3 GBytesRefer to the Read-Me-F22 file. Supercritical flow regime.
F23.zipDrop tower experiment F23F23.zipBMP3 GBytesRefer to the Read-Me-F23 file. Supercritical flow regime.
F15.zipDrop tower experiment F15F15.zipBMP2.9 GBytesRefer to the Read-Me-F15 file. Reorientation of liquid. Drop test.
F17.zipDrop tower experiment F17F17.zipBMP3 GBytesRefer to the Read-Me-F17 file. Reorientation of liquid. Catapult test.
F31.zipDrop tower experiment F31F31.zipBMP3 GBytesRefer to the Read-Me-F31 file. Reorientation of liquid. Catapult test.
Videos.zipVideos of drop tower experiments F10, F11, F12, F24, F30, F23 and F31Videos.zipMP4596 MBytesRefer to the Read-Me-Videos file. Contains videos from the drop tower experiments.