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1. As part of your role at a heavy-goods vehicle manufacturer, you have been asked to determine the drag caused by the boundary layer developing along a section of the trailer roof, which can be treated as having constant pressure, as the truck travels at 10 m/s. The velocity profile in this region is given by: - A (+ 1) + 1 us where us is the velocity at the edge of the boundary layer. A and B are constants. b) By evaluating the ratio between the displacement thickness (5*) and the momentum thickness (e) of the boundary layer, determine whether the boundary layer on the trailer roof is laminar or turbulent.

1. As part of your role at a heavy-goods vehicle manufacturer, you have been asked to determine the drag caused by the boundary layer developing along a section of the trailer roof, which can be treated as having constant pressure, as the truck travels at 10 m/s. The velocity profile in this region is given by: - A (+ 1) + 1 us where us is the velocity at the edge of the boundary layer. A and B are constants. b) By evaluating the ratio between the displacement thickness (5*) and the momentum thickness (e) of the boundary layer, determine whether the boundary layer on the trailer roof is laminar or turbulent.

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1. As part of your role at a heavy-goods vehicle manufacturer, you have been asked to determine the drag caused by the boundary layer developing along a section of the trailer roof, which can be treated as having constant pressure, as the truck travels at 10 m/s. The velocity profile in this region is given by: - A (+ 1) + 1 us where us is the velocity at the edge of the boundary layer. A and B are constants.
Transcribed Image Text:1. As part of your role at a heavy-goods vehicle manufacturer, you have been asked to determine the drag caused by the boundary layer developing along a section of the trailer roof, which can be treated as having constant pressure, as the truck travels at 10 m/s. The velocity profile in this region is given by: - A (+ 1) + 1 us where us is the velocity at the edge of the boundary layer. A and B are constants.
b) By evaluating the ratio between the displacement thickness (5*) and the momentum thickness (e) of the boundary layer, determine whether the boundary layer on the trailer roof is laminar or turbulent.
Transcribed Image Text:b) By evaluating the ratio between the displacement thickness (5*) and the momentum thickness (e) of the boundary layer, determine whether the boundary layer on the trailer roof is laminar or turbulent.
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