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Ivanshal [37]
3 years ago
15

A plane wall of thickness 2L = 40 mm and thermal conductivity k = 5 W/m K experiences uniform volumetric heat generation at a ra

te q, while convection heat transfer occurs at both of its surfaces (x = -L, + L), each of which is exposed to a fluid of temperature T infinity = 20 degree C. Under steady-state conditions, the temperature distribution in the wall is of the form T(x) = a + bx + cx2, where a = 82.0 degree C, b = - 210 degree C/m, c = -2 times 104cC/m2, and x is in meters. The origin of the x-coordinate is at the midplane of the wall. Sketch the temperature distribution and identify significant physical features.
Engineering
1 answer:
lapo4ka [179]3 years ago
3 0
Answer:










Explanation:





2L = 40mm -210- c/m = 124


I hope this helps! :)
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Answer:

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Given:

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-Integrate from v = 1 m/s @ x = 0:

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                          0.5v^2 = 0.8 cos(-1/0.8) + 0.1 -0.3

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- v = v_max when a = 0:

                           -0.1 = sin(x/0.8)

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                            v^2 = 1.6 cos(-0.080134/0.8) -0.6 -0.2*-0.080134

                            v = sqrt (0.504)

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