NACA-TN-2974

Experiments on mixed-free-and-forced-convective heat transfer connected with turbulent flow through a short tube

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T17:12:29Z
date available	2017-09-04T17:12:29Z
date copyright	01/01/1953
date issued	1953
identifier other	YVONEEAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/136008
description abstract	Experiments were conducted to obtain information on heat transfer in turbulent, mixed-free- and -forced-convection flow. This flow regime has recently become important in connection with certain engineering applications such as gas turbines and jet engines. The investigation was made in a vertical tube with a length-to-diameter ratio equal to 5. The walls of the tube were heated, and air was conducted through the tube in either an upward or a downward direction. Free convection is created by gravity so that the buoyancy forces in the heated layers near the tube wall were either parallel or opposite to the direction of the forced flow. The Grashof number which characterizes the free-convection effect could be varied between approximately 10⁹ and 10¹³ and the Reynolds number characterizing the forced flow varied from 36x10³ to 377x10³.
language	English
title	NACA-TN-2974	num
title	Experiments on mixed-free-and-forced-convective heat transfer connected with turbulent flow through a short tube	en
type	standard
page	60
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1953
contenttype	fulltext