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boundary condition for temperature
The boundary condition for temperature in the problem of unsteady boundary layer problem is
T = Tw at y = 0 and T = Te as y goes to infinity when considering the following non-dimensional variables where the first one is theta = (T - Tw)/(Te - Tw) and the second one is theta = (T - Te)/(Tw - Te), we have for the first one T = 0 at y = 0, T = 1 at y infinity and for the second one T = 1 at y = 0, T = 0 at y infinity Note: Tw wall temperature, Te temperature far from the wall, theta dimensionless variable for temperature can you explain what is the meaning of differences between these two cases and when we should apply the first one and the second one? |

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