Accession Number:

AD0618023

Title:

INTERFEROMETER STUDY OF NATURAL CONVECTION INSIDE A HORIZONTAL CYLINDRICAL CAVITY

Descriptive Note:

Master's thesis

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1965-03-01

Pagination or Media Count:

50.0

Abstract:

An optical interferometer was used to observe the isotherms which developed within a horizontal fiberglass cylinder as it was non-uniformly heated in axial strips to a maximum wall temperature of 200 F. It was found that when single strips were heated separately, the local heat transfer coefficients at the cylinder wall adjacent to each heater reached a maximum value in the region 20 to 25 degrees below where the wall surface was vertical. Also, the magnitude of the coefficients increased with time for about the first six minutes of heating and then decreased slightly. Numerous photographs are included which show the isothermal patterns formed when various segments of the cylinder wall were heated.

Subject Categories:

  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE