EBK APPLIED FLUID MECHANICS
7th Edition
ISBN: 9780100668348
Author: UNTENER
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 17, Problem 17.26PP
A small, fast boat has a specific resistance ratio of
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
If your lift to drag ratio is 15 for airline A flight and the airplane weighs 15,000-lb for L/Dmax, what’s the speed for L/Dmax at 22,500 lbs.?
A truck having projected area of 6.5 m² and travelling at 72 km/h has a total resistance of 1.6 kN. Out of this resistance, 30% is due to rolling, 20% due to surface friction and rest is due to drag. Calculate the coefficient of drag if specific weight of air is 12 N/m^3.
Task 2:An airplane with a NACA 662-215 airfoil cruises at 170 m/s at an altitude of 4550 m. The airfoil has an aspect ratio of 9 with a span of 30 m. Determine the lift and drag forces then determine the power required to overcome drag. Consider the airplane flying at an angle of attack equal to 2.
Chapter 17 Solutions
EBK APPLIED FLUID MECHANICS
Ch. 17 - A cylinder 25 mm in diameter is placed...Ch. 17 - As part of an advertising sign on the top of a...Ch. 17 - Determine the terminal velocity (see Section 2.6.4...Ch. 17 - Calculate the moment at the base of a flagpole...Ch. 17 - A pitcher throws a baseball without spin with a...Ch. 17 - A parachute in the form of a hemispherical cup 1.5...Ch. 17 - Calculate the required diameter of a parachute in...Ch. 17 - A ship tows an instrument in the form of a 30...Ch. 17 - A highway sign is being designed to withstand...Ch. 17 - Assuming that a semitrailer behaves as a square...
Ch. 17 - A type of level indicator incorporates four...Ch. 17 - Prob. 17.12PPCh. 17 - A bulk liquid transport truck incorporates a...Ch. 17 - A wing on a race car is supported by two...Ch. 17 - Prob. 17.15PPCh. 17 - The four designs shown in Fig. 17.16 for the cross...Ch. 17 - Prob. 17.17PPCh. 17 - Prob. 17.18PPCh. 17 - An antenna in the shape of a cylindrical rod...Ch. 17 - Prob. 17.20PPCh. 17 - Prob. 17.21PPCh. 17 - Prob. 17.22PPCh. 17 - Assume that curve 2 in Fig. 17.5 is a true...Ch. 17 - Prob. 17.24PPCh. 17 - Prob. 17.25PPCh. 17 - A small, fast boat has a specific resistance ratio...Ch. 17 - Prob. 17.27PPCh. 17 - Assume that Fig. 17.11 shows the performance of...Ch. 17 - Calculate the total drag on an airfoil that has a...Ch. 17 - Prob. 17.30PPCh. 17 - Prob. 17.31PPCh. 17 - Prob. 17.32PPCh. 17 - Prob. 17.33PP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A car (m = 2000kg; Cd = 0.3; Ac = 2.5m ^ 2) travels on a flat track at a speed of 100 km / h. Air: 1.2 kg / m ^ 3; u = 1.8 x 10 ^ -5 Pa.s. a) Calculate the power required to overcome the drag. How much power does a 27 km / h head wind blow? b) What is the power required to climb a ramp, with a 5º slope, at 100 km / h? Consider the absence of wind and neglect rolling friction. Tip: Start by calculating the force the engine has to exert.arrow_forwardThe Antonov An-225 is the heaviest aircraft ever built, with a maximum takeoff weight of 640 metric tonnes. It also has the largest wingspan of any aircraft in operational service. Sea level standard day (sls) conditions for calculations are 15°C; 101.3kPa Rotate speed (Vr) at takeoff (sls): Vr = 154 kts = 1.2×Vmin (1 kt = 0.514 m/s) Cruise Engine Thrust : a) Calculate the lift coefficient for a standard day takeoff b) Calculate the drag coefficient at cruis Fcruise = 0.85 Fmax Engine maximum thrust: Factual,max = Fsls,max×δ θ½ δ = Pactual/Pref; and θ = Tref/Tactualarrow_forwardA propeller-driven aircraft has an in-flight weight of 4,105 lb (equivalent to a mass of 1,862 kg) and is cruising at a true airspeed of 120 kts. The lift-to-drag ratio of the aircraft is 8.2. If the propeller efficiency, ηp, is 0.8, then how much brake power is required for flight? Work through this problem in both USC and SI units.arrow_forward
- A rectangular banner 2ft high by 10ft long is carried by marchers in a parade that is moving at 2 mph. A 30 mph wind is blowing. If the air density is 2.4 × 10−3 slug/ft3 , find the maximum force exerted on the banner by the wind. Estimate how many marchers it might take to hold the banner safely.arrow_forwardA new pizza store is planning to open. It will, of course,offer free delivery, and therefore need a small delivery carwith a large sign attached. The sign (a flat plate) is 1.5 ft highand 5 ft long. The boss (having no feel for fluid mechanics)mounts the sign bluntly facing the wind. One of his driversis taking fluid mechanics and tells his boss he can save lotsof money by mounting the sign parallel to the wind. (SeeFig. .) (a) Calculate the drag (in lbf) on the sign alone at40 mi/h (58.7 ft/s) in both orientations. (b) Suppose the carwithout any sign has a drag coefficient of 0.4 and a frontalarea of 40 ft2. For V =40 mi/h, calculate the total drag of thecar–sign combination for both orientations. (c) If the car hasa rolling resistance of 40 lbf at 40 mi/h, calculate the horsepowerrequired by the engine to drive the car at 40 mi/h inboth orientations. (d) Finally, if the engine can deliver 10 hpfor 1 h on a gallon of gasoline, calculate the fuel efficiencyin mi/gal for both…arrow_forwardA smooth square cylinder is put in 15 °C flowing water. The flow direction is perpendicular to the long axis of the cylinder (parallel to the square section). The edge length of the square is s=2.0m. The long axis length is L=5.0m. The flow velocity is v=0.046 m/s. The density of water is ρ=1000kg/m3. T he dynamic viscosity is η=1.15×10-3kg/m·s. (2) Find the drag coefficient CD_________arrow_forward
- Solve Parts A-C and label Them QUESTION: Suppose you buy a 3 x 7-ft sheet of plywood and put it on your roof rack. You drive home at 45 mi/h. Part A - If the board is perfectly aligned with the airflow, how thick is the boundary layer at the end of the board? Part B - Estimate the drag on the sheet of plywood if the boundary layer remains laminar? Part C - Estimate the drag on the sheet of plywood if the boundary layer is turbulent (assume the wood is smooth) and compare the result to that of the laminar boundary layer case. HINT - 3 X 7-ft sheet of plywood and put it on your roof rack. You drive home at 45 mi/h.arrow_forwardEstimate its drag in N. Take CD ≈ 0.4.arrow_forwardCalculate Induced Drag pleasearrow_forward
- A spherical dust particle of density ρp and radius R falls at a constant velocity V in an atmosphere of density ρa under its own weight. Find V if ρp/ρa = 1000, R = 0.5 mm, and the drag coefficient CD = F/(0.5ρaV2πR2 ) = 1, where F is the drag force acting on the sphere. Ignore the buoyancy force.arrow_forwardThe wing loading on an airplane is defined as the aircraft weight divided by the wing area. An airplane is cruising with a wing loading of 2500 Pa. The lift coefficient and drag coefficient are 0.30 and 0.06, respectively. Calculate the drag force if the wing planform area is 12 m2. Assume that the air density is unknown and not given.arrow_forwardA jet flights with a speed of 291 m/s . If the jet's engine has a power of 1,462,823 W. what is the air resistance? Calculate answer to one decimalarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Unit Conversion the Easy Way (Dimensional Analysis); Author: ketzbook;https://www.youtube.com/watch?v=HRe1mire4Gc;License: Standard YouTube License, CC-BY