Mellsen, S. B. and Ellis, A. T. and Waugh, J. G. (1966) On the Added Mass of a Sphere in a Circular Cylinder Considering Real Fluid Effects. California Institute of Technology , Pasadena, CA. (Unpublished) https://resolver.caltech.edu/CaltechAUTHORS:20150603-152348259
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Abstract
An experimental method combined with boundary layer theory is given for evaluating the added mass of a sphere moving along the axis of a circular cylinder filled with water or oil. The real fluid effects are separated from ideal fluid effects. The experimental method consists essentially of a magnetic steel sphere propelled from rest by an electromagnetic coil in which the current is accurately controlled so that it only supplies force for a short time interval which is within the laminar flow regime of the fluid. The motion of the sphere as a function of time is recorded on single frame photographs using a short-arc multiple flash lamp with accurately controlled time intervals between flashes. A concept of the effect of boundary layer displacement on the fluid flow around a sphere is introduced to evaluate the real fluid effects on the added mass. Surprisingly accurate agreement between experiment and theory is achieved.
Item Type: | Report or Paper (Technical Report) | ||||||
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Additional Information: | Department of the Navy, Bureau of Naval Weapons Fluid Mechanics and Flight Dynamics Branch Contract N600(19)59368 to the California Institute of Technology and Task Assignment number RRRE-04001/216-1/R009-01-01 to the U. S. Naval Ordnance Test Station, Pasadena. Report No. E-124.1. | ||||||
Group: | Hydrodynamics Laboratory | ||||||
Funders: |
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Record Number: | CaltechAUTHORS:20150603-152348259 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150603-152348259 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 57996 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | INVALID USER | ||||||
Deposited On: | 04 Jun 2015 16:19 | ||||||
Last Modified: | 03 Oct 2019 08:31 |
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