Maximum heat flux propagation velocity during quenching by water jet impingement
Author(s)
Mozumder, Aloke Kumar
Woodfield, Peter Lloyd
Islam, Md Ashraful
Monde, Masanori
Griffith University Author(s)
Year published
2007
Metadata
Show full item recordAbstract
Maximum heat flux propagation characteristics during quenching of hot cylindrical blocks with initial temperature 250-600 àhave been investigated experimentally using a subcooled water jet. When the wetted area starts moving towards the circumferential region, the heat flux reaches its maximum value and the position of maximum heat flux follows the visible leading edge of the wetting front. If wetting starts immediately after the jet strikes the surface, the velocity of this maximum heat flux point increases with the increase of jet velocity and subcooling and decreases with the increase of block initial temperature. These ...
View more >Maximum heat flux propagation characteristics during quenching of hot cylindrical blocks with initial temperature 250-600 àhave been investigated experimentally using a subcooled water jet. When the wetted area starts moving towards the circumferential region, the heat flux reaches its maximum value and the position of maximum heat flux follows the visible leading edge of the wetting front. If wetting starts immediately after the jet strikes the surface, the velocity of this maximum heat flux point increases with the increase of jet velocity and subcooling and decreases with the increase of block initial temperature. These trends are opposite if there is a long delay before movement of the front.
View less >
View more >Maximum heat flux propagation characteristics during quenching of hot cylindrical blocks with initial temperature 250-600 àhave been investigated experimentally using a subcooled water jet. When the wetted area starts moving towards the circumferential region, the heat flux reaches its maximum value and the position of maximum heat flux follows the visible leading edge of the wetting front. If wetting starts immediately after the jet strikes the surface, the velocity of this maximum heat flux point increases with the increase of jet velocity and subcooling and decreases with the increase of block initial temperature. These trends are opposite if there is a long delay before movement of the front.
View less >
Journal Title
International journal of heat and mass transfer
Volume
50
Subject
Mathematical sciences
Physical sciences
Engineering
Mechanical engineering not elsewhere classified