Sessile Axisymmetric Drops in Microgravity Conditions

Sparavigna, Amelia Carolina

doi:10.11648/j.ajmp.20130205.13

Cited by 1 publication

(1 citation statement)

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“…Specifically, the most common of these low-gravity measurement methods have been undertaken using drop towers and parabolic flight campaigns [21,22]. These methods, although beyond the scope of this paper, are useful for experimentally confirming analytical models of fluids at different gravity magnitudes.…”

Section: Introductionmentioning

confidence: 99%

Surface Tension and Contact Angle Analysis with Design of Propellant Measurement Apparatus

Levine¹,

Wise²,

Schulman³

et al. 2015

Journal of Propulsion and Power

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Propellant management devices located within the propellant tanks of spacecraft and satellites operating in microgravity environment are used to control propellant distribution within the tank to improve vehicle dynamics and performance. In the microgravity environment, viscous and capillary forces can dominate body forces, and special considerations of these effects must be taken into account when designing a unique propellant management device for each mission and propellant combination. New high-performance green propellants are under development to improve performance and reduced mission costs, and to elicit efforts to further improve design of fueltailored propellant storage and feed systems. This paper presents the design and implementation of apparatuses intended to obtain high-quality imagery of liquids in exotic environments consistent with propellant tanks for rockets and spacecraft, as well as a review and comparison of several droplet photograph analyzing techniques used to determine surface tension and wall contact angle. This paper's review of testing and analysis techniques, as well as its development of a testing apparatus that can sustain an adequately pressurized environment for cryogenic gases in addition to chemical compatibility for solvent-based propellants, can be used to design spacecraft or satellite propellant management devices that operate with newly emerging propellants.

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Section: Introductionmentioning

confidence: 99%