Effect of jet prandtl number on impingement cooling of rotating bodies

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Title: Effect of jet prandtl number on impingement cooling of rotating bodies
Author: Saavedra, Jaime Joaquin
Abstract: This study describes the effect of jet Prandtl number on the convective heat transfer from a rotating disk cooled by a single jet of impinging oil . Data were taken for different combinations of jet flowrates , jet temperatures , disk rotational speeds , disk temperatures , nozzle diameters and disk diameters . Three sizes of nozzle diameters were used , 0 .079 in . (0 .2 cm ) , 0 .158 in . (0 .4 cm ) and 0 .315 in . (0 .8 cm ) . Three sizes of disk diameters were used , 3 .937 in . (10 .0 cm ) , 7 .874 in . (20 .0 cm ) and 11 .134 in . (28 .28 cm ) . Nondimensional correlations of Nusselt number are given in terms of jet Reynolds number , Prandtl number and rotational Reynolds number . The parameter ranges that are covered in this study are :80 < jet Prandtl number < 400 ; 200 < jet Reynolds number < 1300 ; 25 ,000 < rotational Reynolds number < 500 ,000 .
URI: http : / /hdl .handle .net /2346 /22155
Date: 1981-12

Citation

Effect of jet prandtl number on impingement cooling of rotating bodies. Master's thesis, Texas Tech University. Available electronically from http : / /hdl .handle .net /2346 /22155 .

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