Monograph records
https://feeds.library.caltech.edu/people/Mellsen-S-B/monograph.rss
A Caltech Library Repository Feedhttp://www.rssboard.org/rss-specificationpython-feedgenenTue, 16 Apr 2024 13:57:25 +0000On the Added Mass of a Sphere in a Circular Cylinder Considering Real Fluid Effects
https://resolver.caltech.edu/CaltechAUTHORS:20150603-152348259
Authors: {'items': [{'id': 'Mellsen-S-B', 'name': {'family': 'Mellsen', 'given': 'S. B.'}}, {'id': 'Ellis-A-T', 'name': {'family': 'Ellis', 'given': 'A. T.'}}, {'id': 'Waugh-J-G', 'name': {'family': 'Waugh', 'given': 'J. G.'}}]}
Year: 2015
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.https://authors.library.caltech.edu/records/yr9e8-qx875