Consider a spiraling line vortex/sink flow in the xy -plane as sketached in Fig. 9-26.The two-dimensional cylindrical velocity components ( u r , u θ ) for this flow field are u r = C / 2 π r , where C and Γ is positive). Verify that this spiraling line vortex/sink flow in the r θ -plane satisfies the two-dimensional incompressible continuity equation. What happens to conservation of mass at the origin? Discuss.
Consider a spiraling line vortex/sink flow in the xy -plane as sketached in Fig. 9-26.The two-dimensional cylindrical velocity components ( u r , u θ ) for this flow field are u r = C / 2 π r , where C and Γ is positive). Verify that this spiraling line vortex/sink flow in the r θ -plane satisfies the two-dimensional incompressible continuity equation. What happens to conservation of mass at the origin? Discuss.
Solution Summary: The author explains the two-dimensional incompressible continuity equation, where the constants are C and Gamma .
Consider a spiraling line vortex/sink flow in the xy-plane as sketached in Fig. 9-26.The two-dimensional cylindrical velocity components
(
u
r
,
u
θ
)
for this flow field are
u
r
=
C
/
2
π
r
, where C and
Γ
is positive). Verify that this spiraling line vortex/sink flow in the
r
θ
-plane satisfies the two-dimensional incompressible continuity equation. What happens to conservation of mass at the origin? Discuss.
V
u-v
Question 4: Consider fully developed Couette flow - flow between
two infinite parallel plates separated by distance h, with the top
plate moving and the bottom plate stationary as illustrated. The flow
is steady, incompressible, and two dimensional in the xy-plane. The
velocity field is given by V = (u,v) = (V y/h)ỉ + 0ỷ, Generate an
expression for stream function Yalong the vertical dashed line in
the figure. For convenience, 4= 0 along the bottom wall of the channel. What is the value of Y
along the top wall?
Please answer with detail
A 2-D flow field has velocity components along
X-axis and y-axis given by u = x't and v = -2 xyt
respectively, here, t is time. The equation of
streamline for the given velocity field is :
(а) ху — сonstant
(с) ху' — сonstant
(b) x´y = constant
(d) x + y
constant
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