The average Nusselt number in laminar naturalconvection from a vertical wall at 180°℃ with stillair at 20°C is found to be 48. If the wall temperaturebecomes 30°C, all other parameters remaining samethe average Nusselt number will be(a) 8(c) 24(b) 16(d) 32

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Answered: from a vertica is found to be °C, all…

Engineering

Mechanical Engineering

from a vertica is found to be °C, all other p Nusselt numb

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

The average Nusselt number in laminar natural
convection from a vertical wall at 180°℃ with still
air at 20°C is found to be 48. If the wall temperature
becomes 30°C, all other parameters remaining same
the average Nusselt number will be
(a) 8
(c) 24
(b) 16
(d) 32

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