FUNDAMENTALS OF FLUID MECHANICS
8th Edition
ISBN: 9781119571490
Author: GERHART
Publisher: WILEY
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Chapter 4.1, Problem 8P
To determine
The location of any stagnation point in the flow field.
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4.
(a) State the conditions that must be met to ensure dynamic balance is achieved for long rotors.
(b) A rotor carries three out-of-balance discs in planes A, B and C as shown in Figure 4. The out-of-
balance mass x radius products of the rotor discs are tabulated in Table 4.
The shaft is to be dynamically balanced by adding balancing masses in planes P and Q, spaced along
the shaft at a distance da = 800 mm.
Determine the magnitude mara and angular position of the balancing mass x radius product that
must be added to plane Q.
MBB
Ов
θε
mdc
Мага
End View on Plane P
P
MBB
MATA
dA
dB
dc
do
Figure 4
moc
Table 4
MATA = 0.6 kg mm
6A = 0°
d₁ = 200 mm
mers = 0.2 kg mm
6g = 45°
dB = 400 mm
mcrc = 0.4 kg mm
Bc=240°
dc = 600 mm
Ans. (b) = 110.5°, moro = 0.2 kg mm
Need help in adding demensioning am am so confused
Complete the following activity. Save as .pdf and upload to the assignment to the dropbox.
口
Use the general dimensioning symbols to correctly specify the following requirements on the
drawing above.
Chapter 4 Solutions
FUNDAMENTALS OF FLUID MECHANICS
Ch. 4.1 - Prob. 2PCh. 4.1 - The velocity field of a flow is given by m/s,...Ch. 4.1 - A two-dimensional velocity field is given by u = 1...Ch. 4.1 - Streamlines are given in Cartesian coordinates by...Ch. 4.1 - Prob. 6PCh. 4.1 - Prob. 8PCh. 4.1 - Prob. 9PCh. 4.1 - Prob. 10PCh. 4.1 - Prob. 11PCh. 4.1 - Prob. 12P
Ch. 4.1 - The x and y components of a velocity field are...Ch. 4.1 - Prob. 14PCh. 4.1 - Prob. 15PCh. 4.1 - For any steady flow the streamlines and...Ch. 4.1 - Prob. 17PCh. 4.1 - Prob. 18PCh. 4.1 - Prob. 19PCh. 4.1 - Prob. 21PCh. 4.1 - Classify the following flows as one-, two-, or...Ch. 4.2 - Prob. 23PCh. 4.2 - Air is delivered through a constant-diameter duct...Ch. 4.2 - Water flows through a constant diameter pipe with...Ch. 4.2 - The velocity of air in the diverging pipe shown in...Ch. 4.2 - A certain flow field has the velocity...Ch. 4.2 - Prob. 28PCh. 4.2 - Prob. 29PCh. 4.2 - A shock wave is a very thin layer (thickness = ℓ)...Ch. 4.2 - Estimate the average acceleration of water as it...Ch. 4.2 - Prob. 32PCh. 4.2 - As a valve is opened, water flows through the...Ch. 4.2 - The fluid velocity along the x axis shown in Fig....Ch. 4.2 - A fluid flows along the x axis with a velocity...Ch. 4.2 - A constant-density fluid flows through a...Ch. 4.2 - Prob. 37PCh. 4.2 - Prob. 38PCh. 4.2 - Prob. 39PCh. 4.2 - An incompressible fluid flows through the...Ch. 4.2 - Prob. 41PCh. 4.2 - Prob. 42PCh. 4.2 - Prob. 43PCh. 4.2 - Prob. 44PCh. 4.2 - Prob. 45PCh. 4.2 - Prob. 46PCh. 4.2 - Assume that the streamlines for the wingtip...Ch. 4.2 - The velocity components for steady flow through...Ch. 4.2 - Water flows through the curved hose shown in Fig....Ch. 4.2 - Water flows though the slit at the bottom of a two...Ch. 4.2 - Prob. 51PCh. 4.2 - Prob. 52PCh. 4.2 - Fluid flows through a pipe with a velocity of 2.0...Ch. 4.2 - A gas flows along the x axis with a speed of V =...Ch. 4.2 - Assume the temperature of the exhaust in an...Ch. 4.2 - A bicyclist leases from her home at 9 a.m. and...Ch. 4.2 - The following pressures for the air flow in...Ch. 4.4 - In the region just downstream of a sluice gate,...Ch. 4.4 - At time t = 0 the valve on an initially empty...Ch. 4.4 - From calculus, one obtains the following formula...Ch. 4.4 - Air enters an elbow with a uniform speed of 10 m/s...Ch. 4.4 - A layer of oil flows down a vertical plate as...Ch. 4.4 - Figure P4.64 shows a fixed control volume. It has...Ch. 4.4 - Water enters a 5-ft-wide, 1-ft-deep channel as...Ch. 4.4 - The wind blows across a field with an approximate...Ch. 4.4 - Water flows from a nozzle with a speed of V = 10...
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