Accession Number : AD0777862

Title :   Liquid Crystal Mapping of the Surface Temperature on a Heated Cylinder Placed in a Crossflow of Air.

Descriptive Note : Master's thesis,


Personal Author(s) : Field,Richard Johns

Report Date : MAR 1974

Pagination or Media Count : 72

Abstract : A liquid cyrstal thermographic technique has been developed which provides an excellent means of obtaining both qualitative and quantitative heat transfer information on heated objects placed in forced convection environments. Circumferential variation of the Nusselt number on a uniformly heated right circular cylinder cooled by forced convection was obtained for Reynolds numbers varying from 38,000 to 148,000. The results compare within the experimental uncertainty in forward stagnation regions with the theory of Schuh. Beyond approximately 30 degrees, the results diverge from theory but are consistent with the work of other investigators. (Author)

Descriptors :   *Liquid crystals, *Surface temperature, *Convection(Heat transfer), Measuring instruments, Turbulence, Cylindrical bodies, Theses

Subject Categories : Test Facilities, Equipment and Methods
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE