Experimental Measurement of the Orbital Paths of Particles Sedimenting Within a Rotating Viscous Fluid as Influenced by Gravity PDF Download
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Author: David A. Wolf
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 44
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Book Description
Author: David A. Wolf
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 44
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Book Description
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722219819
Category :
Languages : en
Pages : 24
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Book Description
Measurements were taken of the path of a simulated typical tissue segment or 'particle' within a rotating fluid as a function of gravitational strength, fluid rotation rate, particle sedimentation rate, and particle initial position. Parameters were examined within the useful range for tissue culture in the NASA rotating wall culture vessels. The particle moves along a nearly circular path through the fluid (as observed from the rotating reference frame of the fluid) at the same speed as its linear terminal sedimentation speed for the external gravitational field. This gravitationally induced motion causes an increasing deviation of the particle from its original position within the fluid for a decreased rotational rate, for a more rapidly sedimenting particle, and for an increased gravitational strength. Under low gravity conditions (less than 0.1 G), the particle's motion through the fluid and its deviation from its original position become negligible. Under unit gravity conditions, large distortions (greater than 0.25 inch) occur even for particles of slow sedimentation rate (less than 1.0 cm/sec). The particle's motion is nearly independent of the particle's initial position. Comparison with mathematically predicted particle paths show that a significant error in the mathematically predicted path occurs for large particle deviations. This results from a geometric approximation and numerically accumulating error in the mathematical technique. Wolf, David A. and Schwarz, Ray P. Johnson Space Center RTOP 694-01-23-05...
Author: David A. Wolf
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Book Description
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 720
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Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 134
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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1786
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 440
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 122
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Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 48
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Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 24
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