1. When a uniform stream flows past an immersed thick cylinder, a broad low-velocity wake is created downstream, idealized as a V shape in Fig. 1. Pressures p1 and p2 are approximately equal. (a) If the flow is two-dimensional and incompressible, with width b into the paper, derive a formula for the drag force F on the cylinder. (b) Rewrite your result in the form of a dimensionless drag coefficient based on body F pU²bL length Cp: =

Elements Of Electromagnetics
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When a uniform stream flows past an immersed thick cylinder, a broad low-velocity
wake is created downstream, idealized as a V shape in Fig. 1. Pressures p1 and p2 are
approximately equal.
(a)
If the flow is two-dimensional and incompressible, with width b into the paper, derive
a formula for the drag force F on the cylinder.
(b)
1.
Rewrite your result in the form of a dimensionless drag coefficient based on body
F
pU²bL
length CD
U
=
O
L
Fig.1. Airflow on a cylinder
U
כ
U/2
L/2
L/2
Transcribed Image Text:When a uniform stream flows past an immersed thick cylinder, a broad low-velocity wake is created downstream, idealized as a V shape in Fig. 1. Pressures p1 and p2 are approximately equal. (a) If the flow is two-dimensional and incompressible, with width b into the paper, derive a formula for the drag force F on the cylinder. (b) 1. Rewrite your result in the form of a dimensionless drag coefficient based on body F pU²bL length CD U = O L Fig.1. Airflow on a cylinder U כ U/2 L/2 L/2
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