FUNDAMENTALS OF FLUID MECHANICS
8th Edition
ISBN: 9781119571490
Author: GERHART
Publisher: WILEY
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Chapter 10.6, Problem 89P
To determine
The flow rate.
The water depth increase or decrease at the downstream of the gate.
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5. Estimate the friction pressure gradient in a 10.15 cm bore unheated horizontal
pipe for the following conditions:
Fluid-propylene
Pressure 8.175 bar
Temperature-7°C
Mass flow of liquid-2.42 kg/s. Density of liquid-530 kg/m³
Mass flow of vapour-0.605 kg/s. Density of vapour-1.48 kg/m³
Describe the following HVAC systems.
a) All-air systems
b) All-water systems
c) Air-water systems
Graphically represent each system with a sketch.
Two large tanks, each holding 100 L of liquid, are interconnected by pipes, with the liquid flowing from tank
A into tank B at a rate of 3 L/min and from B into A at a rate of 1 L/min (see Figure Q1). The liquid inside each
tank is kept well stirred. A brine solution with a concentration of 0.2 kg/L of salt flows into tank A at a rate of
6 L/min. The diluted solution flows out of the system from tank A at 4 L/min and from tank B at 2 L/min. If,
initially, tank A contains pure water and tank B contains 20 kg of salt.
A
6 L/min
0.2 kg/L
x(t)
100 L
4 L/min
x(0) = 0 kg
3 L/min
1 L/min
B
y(t)
100 L
y(0) = 20 kg
2 L/min
Figure Q1 - Mixing problem for interconnected tanks
Determine the mass of salt in each tank at time t≥ 0:
Analytically (hand calculations)
Using MATLAB Numerical Functions (ode45)
Creating Simulink Model
Plot all solutions on the same graph for the first 15 min. The graph must be fully formatted by code.
Chapter 10 Solutions
FUNDAMENTALS OF FLUID MECHANICS
Ch. 10.2 - Prob. 1PCh. 10.2 - The flowrate per unit width in a wide channel is q...Ch. 10.2 - A rectangular channel 3 m wide carries 10 m3/s at...Ch. 10.2 - Prob. 4PCh. 10.2 - Prob. 5PCh. 10.2 - Prob. 6PCh. 10.2 - Prob. 7PCh. 10.2 - Prob. 8PCh. 10.2 - Prob. 9PCh. 10.2 - Prob. 10P
Ch. 10.2 - Prob. 11PCh. 10.3 - Water flows in a 10-m-wide open channel with a...Ch. 10.3 - Water flows in a 10-ft-wide rectangular channel...Ch. 10.3 - Water flows in a rectangular channel at a rate of...Ch. 10.3 - Water flows in a 5-ft-wide rectangular channel...Ch. 10.3 - Water flows over the bump in the bottom of the...Ch. 10.3 - Water in a rectangular channel flows into a...Ch. 10.3 - A channel has a rectangular cross section, a width...Ch. 10.3 - Prob. 19PCh. 10.3 - Prob. 20PCh. 10.3 - Prob. 23PCh. 10.3 - Prob. 24PCh. 10.3 - Prob. 25PCh. 10.3 - Prob. 26PCh. 10.3 - Prob. 27PCh. 10.3 - Prob. 28PCh. 10.3 - Prob. 29PCh. 10.4 - Water flows in a 5-m-wide channel with a speed...Ch. 10.4 - The following data are taken from measurements on...Ch. 10.4 - Prob. 32PCh. 10.4 - The following data are obtained for a particular...Ch. 10.4 - Prob. 34PCh. 10.4 - Prob. 35PCh. 10.4 - A 2-m-diameter pipe made of finished concrete lies...Ch. 10.4 - By what percent is the flowrate reduced in the...Ch. 10.4 - Prob. 38PCh. 10.4 - Prob. 39PCh. 10.4 - Prob. 40PCh. 10.4 - A trapezoidal channel with a bottom width of 3.0 m...Ch. 10.4 -
Water flows in a 2-m-diameter finished concrete...Ch. 10.4 - A round concrete storm sewer pipe used to carry...Ch. 10.4 - Find the discharge per unit width for a wide...Ch. 10.4 - Water flows down a wide rectangular channel having...Ch. 10.4 - Prob. 46PCh. 10.4 - Prob. 47PCh. 10.4 - Prob. 48PCh. 10.4 - Determine the flowrate for the symmetrical channel...Ch. 10.4 - (See The Wide World of Fluids article titled “Done...Ch. 10.4 - Prob. 51PCh. 10.4 - Prob. 52PCh. 10.4 - Prob. 53PCh. 10.4 - Prob. 54PCh. 10.4 - Prob. 55PCh. 10.4 - Prob. 56PCh. 10.4 - Prob. 57PCh. 10.4 - Prob. 58PCh. 10.4 - Prob. 59PCh. 10.4 - Prob. 60PCh. 10.4 - Prob. 61PCh. 10.4 - Prob. 62PCh. 10.4 - Prob. 63PCh. 10.4 - Water flows 1 m deep in a 2-m-wide finished...Ch. 10.4 - Uniform flow in a sluggish channel having a nearly...Ch. 10.4 - To prevent weeds from growing in a clean...Ch. 10.4 - Prob. 67PCh. 10.4 - Prob. 68PCh. 10.4 - Prob. 69PCh. 10.4 - Prob. 70PCh. 10.5 - Prob. 71PCh. 10.5 - Prob. 72PCh. 10.6 - Water flows upstream of a hydraulic jump with a...Ch. 10.6 - Prob. 75PCh. 10.6 - Prob. 76PCh. 10.6 - Prob. 77PCh. 10.6 - At a given location in a 12-ft-wide rectangular...Ch. 10.6 - Prob. 79PCh. 10.6 - Prob. 80PCh. 10.6 - Prob. 81PCh. 10.6 - A hydraulic engineer wants to analyze steady flow...Ch. 10.6 - Prob. 83PCh. 10.6 - A rectangular sharp-crested weir is used to...Ch. 10.6 - Prob. 85PCh. 10.6 - Prob. 87PCh. 10.6 - Prob. 88PCh. 10.6 - Prob. 89PCh. 10.6 - Prob. 90PCh. 10.6 - Prob. 91PCh. 10.7 - Prob. 1LLPCh. 10.7 - Prob. 2LLPCh. 10.7 - Prob. 3LLP
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