scholarly journals Volume-of-Fluid (VOF) Simulations of Marangoni Bubbles Motion in Zero Gravity

10.5772/38198 ◽  
2012 ◽  
Author(s):  
Yousuf Alhendal ◽  
Ali Tur
Keyword(s):  
Volume Of Fluid ◽  
Zero Gravity

scholarly journals Modal evaluation of fluid volume in spacecraft propellant tanks

2012 ◽  
Author(s):  
Steven Mathe ◽  
KelliAnn Anderson ◽  
Amber Bakkum ◽  
Kevin Lubick ◽  
John Robinson ◽  
...  
Keyword(s):  
Modal Analysis ◽  
Unsolved Problem ◽  
Volume Of Fluid ◽  
Experimental Modal Analysis ◽  
Fluid Volume ◽  
Mission Design ◽  
Zero Gravity ◽  
Parabolic Flights ◽  
Analysis Technique ◽  
Using Data

Propellant mass-gauging in unsettled (sloshing) fluids is an important and unsolved problem in spacecraft operations and mission design. In the present work, we demonstrate the efficacy of the experimental modal analysis technique in determining the volume of fluid present in model spacecraft propellant tanks undergoing significant sloshing. Using data acquired over approximately 37 minutes of time in zero-gravity conditions provided over two years of parabolic flights, we estimate the resolution of the technique at low tank fill-fractions where other mass-gauging techniques are known to fail. 

The Effects of Direction and Velocity of Movement, and Intra-Articular Fluid Volume on Intra-Articular Pressue

1988 ◽  
Vol 01 (03/04) ◽  
pp. 113-121 ◽  
Author(s):  
S. F. Straface ◽  
P. J. Newbold ◽  
S. Nade
Keyword(s):  
Dynamic Pressure ◽  
Volume Of Fluid ◽  
Joint Capsule ◽  
Fluid Volume ◽  
Structural Configuration

levels. In joints with simulated acute effusion the effect of position on IAP was dependent upon the volume of fluid in the joint. The results indicate that dynamic pressure levels in the moving knee are related to the movements of the joint. The characteristic and reproducible patterns of pressure may reflect changes in the structural configuration of the joint capsule and surrounding tissues during movement, and are influenced by the amount of fluid in the joint.

Sign in / Sign up

Export Citation Format

Share Document