Rorschach, Harold E., Jr.2016-04-222016-04-221958Laing, Ronald Albert. "The hydrodynamic drag force in liquid helium at high Reynold's numbers." (1958) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/90226">https://hdl.handle.net/1911/90226</a>.https://hdl.handle.net/1911/90226The hydrodynamic drag force on a sphere falling in Helium I and Helium II at large Reynolds' Numbers was studied. It was found that for Reynolds' Numbers ~10 to the 6th the drag force can be adequately represented by the equation D=Co(1/2 pu2)A where P is the total density of the fluid, U is the velocity of the falling sphere, and A is the projected area of the sphere. In the region of Keynolds' Numbers studied in Helium II the superfluid and normal fluid appear to move together and turbulence in the superfluid seems to be present.41 ppengCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.ThesisRICE1262reformatted digitalThesis Phys. 1958 Laing