Fox and McDonald's Introduction to Fluid Mechanics
9th Edition
ISBN: 9781118912652
Author: Philip J. Pritchard, John W. Mitchell
Publisher: WILEY
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Chapter 7, Problem 50P
An airplane wing, with chord length of 1.5 m and span of 9 m, is designed to move through standard air at a speed of 7:5m/s. A 1:10 scale model of this wing is to be tested in a water tunnel. What speed is necessary in the water tunnel to achieve dynamic similarity? What will be the ratio of forces measured in the model flow to those on the prototype wing?
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The following data were taken during a one-hour trial run on a single cylinder, single acting, four-stroke diesel engine of cylinder diameter of 175 mm and stroke 225 mm , the speed being constant at 1000 rpm :
Indicated mep: 5.5 barsDiam. of rope brake: 1066 mmLoad on brake: 400 NReading of balance: 27 NFuel consumed: 5.7 kgCalorific value: 44.2 MJ/kg
Calculate the indicated power, brake power, specific fuel consumption per indicated kWh and per brake kWh , mechanical efficiency, indicated thermal and brake thermal efficiency.
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A particle moves along an Archimedean spiral
r = (80) ft, where 0 is given in radians. (Figure 1)
If ė = = 4 rad/s and € = 5 rad/s², determine the radial component of the particle's velocity at the instant
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Part B
Determine the transverse component of the particle's velocity.
Express your answer to three significant figures and include the appropriate units.
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Part C
Units
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1 of 1
Determine the radial component of the particle's acceleration.
Express your answer to three significant figures and include the appropriate units.
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Can you help me with a matlab code? I am trying to plot the keplerian orbital elements over time. I would usually find the orbit using cartesian system and then transform into keplerian orbital elements. Is there a way to directly integrate keplerian orbital elements?
Chapter 7 Solutions
Fox and McDonald's Introduction to Fluid Mechanics
Ch. 7 - The slope of the free surface of a steady wave in...Ch. 7 - One-dimensional unsteady flow in a thin liquid...Ch. 7 - In atmospheric studies the motion of the earths...Ch. 7 - Fluid fills the space between two parallel plates....Ch. 7 - By using order of magnitude analysis, the...Ch. 7 - Consider a disk of radius R rotating in an...Ch. 7 - An unsteady, two-dimensional, compressible,...Ch. 7 - Experiments show that the pressure drop for flow...Ch. 7 - At very low speeds, the drag on an object is...Ch. 7 - We saw in Chapter 3 that the buoyant force, FB, on...
Ch. 7 - Assume that the velocity acquired by a body...Ch. 7 - Derive by dimensional analysis an expression for...Ch. 7 - The speed of shallow water waves in the ocean...Ch. 7 - The speed, V, of a free-surface wave in shallow...Ch. 7 - The boundary-layer thickness, , on a smooth flat...Ch. 7 - The speed, V, of a free-surface gravity wave in...Ch. 7 - Derive an expression for the velocity of very...Ch. 7 - Derive an expression for the axial thrust exerted...Ch. 7 - Derive an expression for drag force on a smooth...Ch. 7 - The energy released during an explosion, E, is a...Ch. 7 - Measurements of the liquid height upstream from an...Ch. 7 - The load-carrying capacity, W, of a journal...Ch. 7 - Derive an expression for the drag force on a...Ch. 7 - A circular disk of diameter d and of negligible...Ch. 7 - Two cylinders are concentric, the outer one fixed...Ch. 7 - The time, t, for oil to drain out of a viscosity...Ch. 7 - You are asked to find a set of dimensionless...Ch. 7 - A continuous belt moving vertically through a bath...Ch. 7 - Derive an expression for the frictional torque...Ch. 7 - Tests on the established flow of six different...Ch. 7 - The power, P, required to drive a fan is believed...Ch. 7 - The sketch shows an air jet discharging...Ch. 7 - The diameter, d, of bubbles produced by a...Ch. 7 - Choked-flow nozzles are often used to meter the...Ch. 7 - A large tank of liquid under pressure is drained...Ch. 7 - Spin plays an important role in the flight...Ch. 7 - The power loss, P, in a journal bearing depends on...Ch. 7 - The thrust of a marine propeller is to be measured...Ch. 7 - The rate dT/dt at which the temperature T at the...Ch. 7 - When a valve is closed suddenly in a pipe with...Ch. 7 - An airship is to operate at 20 m/s in air at...Ch. 7 - An airplane wing of 3 m chord length moves through...Ch. 7 - A flat plate 1.5 m long and 0.3 m wide is towed at...Ch. 7 - This 1:12 pump model using water at 15C simulates...Ch. 7 - An ocean-going vessel is to be powered by a...Ch. 7 - On a cruise ship, passengers complain about the...Ch. 7 - A 1:3 scale model of a torpedo is tested in a wind...Ch. 7 - A flow rate of 0:18 m3/s of water at 20C...Ch. 7 - A force of 9 N is required to tow a 1:50 ship...Ch. 7 - An airplane wing, with chord length of 1.5 m and...Ch. 7 - A water pump with impeller diameter of 24 in. is...Ch. 7 - A model hydrofoil is to be tested at 1:20 scale....Ch. 7 - A ship 120 m long moves through freshwater at 15C...Ch. 7 - A 1:30 scale model of a cavitating overflow...Ch. 7 - In some speed ranges, vortices are shed from the...Ch. 7 - A 1:8 scale model of a tractor-trailer rig is...Ch. 7 - On a cruise ship, passengers complain about the...Ch. 7 - When a sphere of 0.25 mm diameter and specific...Ch. 7 - The flow about a 150 mm artillery projectile which...Ch. 7 - Your favorite professor likes mountain climbing,...Ch. 7 - A 1:50-scale model of a submarine is to be tested...Ch. 7 - Consider water flow around a circular cylinder, of...Ch. 7 - A 1:10 scale model of a tractor-trailer rig is...Ch. 7 - The power, P, required to drive a fan is assumed...Ch. 7 - Over a certain range of air speeds, V, the lift,...Ch. 7 - The pressure rise, p, of a liquid flowing steadily...Ch. 7 - An axial-flow pump is required to deliver 0.75...Ch. 7 - A model propeller 1 m in diameter is tested in a...Ch. 7 - Consider Problem 7.38. Experience shows that for...Ch. 7 - Closed-circuit wind tunnels can produce higher...Ch. 7 - A 1:16 model of a bus is tested in a wind tunnel...Ch. 7 - The propagation speed of small-amplitude surface...
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- mylabmastering.pearson.com Chapter 12 - Lecture Notes.pptx: (MAE 272-01) (SP25) DY... P Pearson MyLab and Mastering Scoresarrow_forwardK mylabmastering.pearson.com Chapter 12 - Lecture Notes.pptx: (MAE 272-01) (SP25) DY... P Pearson MyLab and Mastering Mastering Engineering Back to my courses Course Home Scores Course Homearrow_forwardK mylabmastering.pearson.com Chapter 12 - Lecture Notes.pptx: (MAE 272-01) (SP25) DY... P Pearson MyLab and Mastering Mastering Engineering Back to my courses Course Home Scores Course Homearrow_forwardChapter 12 - Lecture Notes.pptx: (MAE 272-01) (SP25) DY... Scoresarrow_forwardIn a single cylinder, four stroke, single acting gas engine, the cylinder diameter is 180 mm and the stroke is 350 mm . When running at 250 rpm , the mean area of the indicator diagram taken off the engine is 355 mm² , length of diagram 75 mm , scale of the indicator spring 90 kN/m sq per mm , and the number of explosions was counted to be 114 per minute. Calculate the indicated power. so i have already asked this question and got a good answer, however on step 4, i dont understand how they reached 18.43 KW. When i do the math provided, i get the answer 7195.566. Where am i going wrong? thanks StepsTo clarify how we determined the Indicated Power, I'll go over each step in detail. Step 1: Comprehending the Provided Information - Cylinder diameter (in meters) = 180 mm = 0.18 m - Stroke length (in meters) = 350 mm = 0.35 m - Engine speed = 250 rpm -Indicator diagram mean area = 355 mm² The diagram's length is 75 mm; its spring scale is 90 kN/m² per mm, or 90,000 N/m² per mm; and…arrow_forwardIn MATLAB, can you help me simulate an orbit under earth J2 perturbation with the Milankovich orbital elements? Also, can you check to see if they fit the Milankovich constraint equaiton?arrow_forward8. All of the members in the Warren truss of Figure 8 are of length 10 ft. Use the method of sections to determine the forces in the members BD,CD,CE. 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State whether each member is in tension or compression. 3 ΘΑ D E cables all dimensions in feet.arrow_forwardA block hangs from the end of bar AB that is 5.80 meters long and connected to the wall in the xz plane. The bar is supported at end A by a ball joint such that it carries only a compressive force along its axis. The bar is supported in equilibrium at end B by cables BD and BC that connect to the xz plane at points C and D respectively with coordinates given in the figure. The z components of the moments exerted on the bar by these two cables sum to 0. The tension in cable BD is measured to be 210 Newtons. Input answers of zero as 0.00 to avoid an invalid answer due to significant figures. Determine the equivalent force and couple system acting at A that models only the forces exerted by both cables BD → and BC on the bar at B. Enter your results for Feq and Meg in Cartesian Components. Z D (c, 0, d) C (a, 0, b). X A f m B y cc 040 BY NC SA 2016 Eric Davishahl Values for dimensions on the figure are given in the following table. Note the figure may not be to scale. Variable Value a…arrow_forwardA bent tube is attached to a wall with brackets as shown. A force of F = 785 lb is applied to the end of the tube with direction indicated by the dimensions in the figure. a.) Determine the moment about point D due to the force F Enter your answer in Cartesian components with units of ft- lbs. b.) Determine the moment about a line (i.e. axis) running from D to C due to the force F. Enter your answer in Cartesian components with units of ft-lbs. 2013 Michael Swanbom x BY NC SA g Z h A с FK kaz Values for dimensions on the figure are given in the table below. Note the figure may not be to scale. Be sure to align your cartesian unit vectors with the coordinate axes shown in the figure. Variable Value α 4.84 in b 13.2 in с 12.5 in d 30.8 in h 18.7 in 22.0 in →> a. MD=( i+ k) ft- lb →> b. MDC = î + k) ft- lbarrow_forwardF1 3 4 5 P F2 F2 Ꮎ e b 200 3 4 5 F1 The electric pole is subject to the forces shown. Force F1 245 N and force F2 = 310 N with an angle 0 = 20.2°. Determine the moment about point P of all forces. Take counterclockwise moments to be positive. = Values for dimensions on the figure are given in the following table. Note the figure may not be to scale. Variable Value a 2.50 m b 11.3 m с 13.0 m The moment about point P is m. N- If the moment about point P sums up to be zero. Determine the distance c while all other values remained the same. m.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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