(a) Does the total head increase or decrease as it flows over the body?(b) What is the decrease in pressure head from a location upstream of the object to a location at the exit plane in the wake of theobject? AP = i(c) What is the dynamic pressure head upstream of the object? Pd = i(d) What is the dynamic pressure head of the fluid streamline in the wake region downstream of the object? Pw==(e) What is the decrease in dynamic pressure head from a location upstream of the object to a location at the exit plane in thewake of the object? AP dyn=(f) What is the change in elevation from a location upstream of the object to a location at the exit plane in the wake of the object?Az = i(g) What is the change in mechanical head, due to drag from a location upstream of the object to a location at the exit plane in thewake of the object? Ahm(h) What is the magnitude of the head loss associated with the object? h₂ =◄► Air (1.23 kg/m³) flows past an object in a 2-m-diameter pipe and exits as a free jet as shown in the figure below. The velocity andpressure upstream are uniform at V = 13 m/s and p = 60 N/m², respectively. At the pipe exit the velocity is non-uniform asindicated. The shear stress along the pipe wall is negligible. (a) Determine the head loss associated with a fluid streamline as itflows over a solid body from the upstream region of uniform velocity to the wake region at the exit plane of the pipe. (b)Determine the force that the air puts on the object.Assume V₁ = 16.0 m/s, V₂ = 4 m/s.2-m-dia.AirWake 1-m dia.+Exit-V₂-V₁₂₁Head loss is associated with changes in static pressure head, dynamic pressure head, elevation and mechanical head in a flow.

(a) Does the total head increase or decrease as it flows over the body? (b) What is the decrease in pressure head from a location upstream of the object to a location at the exit plane in the wake of the object? AP = i (c) What is the dynamic pressure head upstream of the object? Pd= + (d) What is the dynamic pressure head of the fluid streamline in the wake region downstream of the object? Pw= i + + (e) What is the decrease in dynamic pressure head from a location upstream of the object to a location at the exit plane in the wake of the object? AP dyn = (f) What is the change in elevation from a location upstream of the object to a location at the exit plane in the wake of the object? Az = i (h) What is the magnitude of the head loss associated with the object? h = (g) What is the change in mechanical head, due to drag from a location upstream of the object to a location at the exit plane in the wake of the object? Ahm = i i

(a) Does the total head increase or decrease as it flows over the body? (b) What is the decrease in pressure head from a location upstream of the object to a location at the exit plane in the wake of the object? AP = i (c) What is the dynamic pressure head upstream of the object? Pd= + (d) What is the dynamic pressure head of the fluid streamline in the wake region downstream of the object? Pw= i + + (e) What is the decrease in dynamic pressure head from a location upstream of the object to a location at the exit plane in the wake of the object? AP dyn = (f) What is the change in elevation from a location upstream of the object to a location at the exit plane in the wake of the object? Az = i (h) What is the magnitude of the head loss associated with the object? h = (g) What is the change in mechanical head, due to drag from a location upstream of the object to a location at the exit plane in the wake of the object? Ahm = i i

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

(a) Does the total head increase or decrease as it flows over the body?
(b) What is the decrease in pressure head from a location upstream of the object to a location at the exit plane in the wake of the
object? AP = i
(c) What is the dynamic pressure head upstream of the object? Pd = i
(d) What is the dynamic pressure head of the fluid streamline in the wake region downstream of the object? Pw=
=
(e) What is the decrease in dynamic pressure head from a location upstream of the object to a location at the exit plane in the
wake of the object? AP dyn
=
(f) What is the change in elevation from a location upstream of the object to a location at the exit plane in the wake of the object?
Az = i
(g) What is the change in mechanical head, due to drag from a location upstream of the object to a location at the exit plane in the
wake of the object? Ahm
(h) What is the magnitude of the head loss associated with the object? h₂ =
◄►

Air (1.23 kg/m³) flows past an object in a 2-m-diameter pipe and exits as a free jet as shown in the figure below. The velocity and
pressure upstream are uniform at V = 13 m/s and p = 60 N/m², respectively. At the pipe exit the velocity is non-uniform as
indicated. The shear stress along the pipe wall is negligible. (a) Determine the head loss associated with a fluid streamline as it
flows over a solid body from the upstream region of uniform velocity to the wake region at the exit plane of the pipe. (b)
Determine the force that the air puts on the object.
Assume V₁ = 16.0 m/s, V₂ = 4 m/s.
2-m-dia.
Air
Wake 1-m dia.
+
Exit
-V₂
-V₁₂₁
Head loss is associated with changes in static pressure head, dynamic pressure head, elevation and mechanical head in a flow.

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