Water at 20°C flows at 5 m/s past a 2-m-wide sharp flatthe plate. (a) Estimate the boundary layer thickness at x = 1.2 m.(b) If the total drag (on both sides of the plate) is 310 N,estimate the length of the plate using, for simplicity,.

Water at 20°C flows at 5 m/s past a 2-m-wide sharp flatthe plate. (a) Estimate the boundary layer thickness at x = 1.2 m.(b) If the total drag (on both sides of the plate) is 310 N,estimate the length of the plate using, for simplicity,.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.29P: Air at 20C flows at 1 m/s between two parallel flat plates spaced 5 cm apart. Estimate the distance...

See similar textbooks

Related questions

Q: 7. A flat plate has a length of 40 cm and width of 1 m. Air, at pressure of 2 atm, temperature of 57…

Q: 1. A hydrofoil 0.366 m long and 1.82 m wide is placed in a water flow of 12.9 m/s, p = 1025.3 kg/m…

A: Given Data⇒ Length of HydrofoilL=0.366 m Widthb=1.82 m Water Flow(U)=12.9ms Densityρ=1025.3kgm3…

Q: The centerboard on a sailboat is 3 ft long parallel to theflow and protrudes 7 ft down below the…

A: Given data: *The length of the sailboat is l=3 ft=0.9144 m. *The length protrudes down below the…

Q: Air at 20 °C flows at V = 10 m/s over a flat plate of length L= 1.52 m and width W = 2 m. Calculate…

Q: The so-called Rocket Man, Yves Rossy, fl ew across the Alps in2008, wearing a rocket-propelled…

Q: Consider turbulent fl ow past a sharp, smooth fl at plate ofwidth b and length L. What percentage of…

Q: A propeller driven aircraft has the following parabolic non-dimensional drag curve: CD = 0.015 +…

Q: A heavy sphere attached to a string should hang at an angleθ when immersed in a stream of velocity…

A: Given, U = 40 m/s diameter (d) = 3 cm = 0.03 m Specific Gravity of steel = 7.86 Freebody diagram,…

Q: The 2013 Toyota Camry has an empty weight of 3190 lbf, a frontal area of 22.06 ft2, and a drag…

A: Write the given value using suitable variables. Here W signifies Camry weight, A signifies frontal…

Q: Air at 20°C and 1 atm flows at 2 m/s past a sharp flat plate.Assuming that Kármán’s…

Q: Consider an infinite wing with an NACA 1412 airfoil section and a chord length of 1 m. The wing is…

Q: In gliding (unpowered) flight, the lift and drag are in equilibriumwith the weight. Show that if…

A: The force of weight is balanced out by both drag and lift force, where the drag force acts in the…

Q: Air at 20 °C flows at V = 10 m/s over a flat plate of length L= 1.52 m and width W = 2 m. Calculate…

A: Boundary layer thickness is the distance from the plate in a vertical direction up to where velocity…

Q: 13) An inflated toy balloon is about 8g, with a cross-sectional area of 0.023 m'. It falls in air…

Q: Assume the stabilizer of an airplane is a flat plate. If the transition /critical RN 750,000, what…

Q: Q.5. For the velocity profile in laminar boundary layer: 13 3 2 2 Find the thickness of boundary…

Q: Air flows at Ma = 2.5 past a half-wedge airfoil whoseangles are 4°, as in Fig. Compute the lift and…

A: a) The lift and drag coefficient at α=0 CL=0CD=42.52-102+12tan24++0=0.0042

Q: In a strait jump line, one of the jumping poles is 130 m high and the other 170 m high. How can the…

Q: Assume the stabilizer of an airplane is a flat plate. If the transition /critical RN 750,000, what…

A: Given data as per the question RN=750000v=44.7 mschord length =0.81 mrectangular stabilize having…

Q: The Cessna Citation executive jet weighs 67 kN and has awing area of 32 m2. It cruises at 10 km…

A: The data given is, Weight of the jet, W = 67 kN Wing area, A = 32 m2 Lift coefficient, CL = 0.21…

Q: An aluminum cylinder weighing 30 N, 6 cm in diameterand 40 cm long, is falling concentrically…

A: Given: The weight of the cylinder is w= 30 N. The diameter and length are D= 6 cm=0.06m and L=40…

Q: Q1: Air flows at 10 m/s past a smooth rectangular flat plate 0.3m wide and 3m long. Assuming that…

Q: A light aircraft flies at 30 m/s in the air at 20°C and 1 atm.Its wing is a NACA 0009 airfoil, with…

A: (a) Calculate the Reynolds number for the flow based on the chord length. Rec=ρUcμ Here, c is the…

Q: A thin aerofoil of chord length 1 m, with small angle of attack flying at a speed of 111 m/s is…

Q: A thin fl at plate 55 by 110 cm is immersed in a 6-m/s streamof SAE 10 oil at 20°C. Compute the…

A: Given: The area of the thin flat plate is A=55 cm×110 cm. The velocity of the oil is V=6 m/s. The…

Q: Air at 20°C and 1 atm flows at 3 m/s past a sharp flat plate2 m wide and 1 m long. (a) What is the…

A: ASSUMPTIONS: boundary layer flow with zero pressure gradient…

Q: The large block shown is x = 72 cm wide, y = 54 cm long, and z = 9.0 cm high. This block is passing…

A: Given:x=72 cm or 0.72 my=54 cm or 0.54 mz=9 cm or 0.09 mρ=1.43 kg/m3v=8.61 m/s

Q: The helium-filled balloon in Fig. is tethered at 20°Cand 1 atm with a string of negligible weight…

A: Write the properties of air at a given temperature.

Q: 4.18 A flat plate is immersed in a Mach 2 flow at standard sea level conditions at an angle of…

Q: For fl ow of sea-level standard air at 4 m/s parallel to a thinfl at plate, estimate the boundary…

A: Standard sea level conditions Dynamic viscosity = 1.789×10−5 Pa·s Density = 1.225 kg/m3 Reynold’s…

Q: A hydrofoil 0.366 m long and 1.82 m wide is placed in a water flow of 12.9 m/s, with p = 1025.3 kg/m…

A: Dimensions of hydrofoil, Length, L=0.366m and width, W=1.82m Free stream velocity, U0=12.9m/s…

Q: A tractor-trailer truck is coasting freely, with no brakes,down an 8° slope at 1000-m standard…

A: Given data: The slop is θ = 8o. The standard altitude is h = 1000 m. The rolling resistance for…

Q: When immersed in a uniform stream V, a heavy rod hingedat A will hang at Pode’s angle θ, after an…

A: Given, L = 40 cm D = 1 cm V = 35 m/s

Q: The 2013 Toyota Camry has an empty weight of 3190 lbf,a frontal area of 22.06 ft2, and a drag…

A: Given ,Weight of the Vehicle W = 3190 lbfFrental Area A = 22.06 ft2Rolling Resistance Crr =…

Q: Consider Mach 4 flow at standard sea level conditions over a flat plateof chord 5 in. Assuming all…

A: Given data: The Mach number of the flow is M = 4. The cord of flat plate is r = 5 in.

Q: Consider a steel sphere (SG = 7.85) of diameter 2 cm,dropped from rest in the water at 208C. Assume…

A: The drag coefficient is CD=0.47. The diameter of the steel sphere is d=2 cm×1 m100 cm=0.02 m

Q: P6.31 (a) A luxury sports car has a frontal area of 2.08 m? and a 0.29 coefficient of drag at 95…

A: Given data: (a) The frontal area of the car is A=2.08 m2 The coefficient of drag is CD=0.29 The…

Q: The main cross-cable between towers of a coastal suspensionbridge is 60 cm in diameter and 90 m…

A: Given data: Diameter of cross-cable = 60 cm Length of cross cable = 90 m…

Q: A boundary layer analysis for flow past a cylinder provides the following expression for skin…

A: given; skin friction factor (Cf)=1Re6.973*xa-2.732*xa3

Q: 7.27 A thin smooth disk of diametd., D is immersed parallel to a uniform stream of velocity U.…

Q: A wing of 2 percent camber, 5-in chord, and 30-in span istested at a certain angle of attack in a…

A: Given data as per question span of wing =30 in velocity=200 ft/s lift=30 lbf Drag =1.5 lbf

Q: Icebergs can be driven at substantial speeds by the wind.Let the iceberg be idealized as a large,…

A: Drag force due to water is FDw=CDw12ρwAV2 Drag force due to air is FDa=CDa12ρaAU-V2 By taking the…

Q: Briefly explain the advantages of using the Von Karman Approx n determining the boundary layer…

A: The Von Karman approximation makes it simple to find boundary layer parameters, and the benefits are…

Q: A portion of ship’s hull can be idealized as a flat plate, 100ft long. If the ship’s velocity is 10…

A: Given data: L=100 ftv=10 ft/sρ=62.4 lbm/ft³µ=3.0 lbm/hr.ft Need to determine the maximum boundary…

Q: Assume the stabilizer of an airplane is a flat plate. If the transition /critical RN 750,000, what…

Q: Consider Mach 4 flow at standard sea level conditions over a flat plateof chord 5 in. Assuming all…

A: Given data M=4L=5 in=0.127 m

Question

Water at 20°C flows at 5 m/s past a 2-m-wide sharp flat
the plate. (a) Estimate the boundary layer thickness at x = 1.2 m.
(b) If the total drag (on both sides of the plate) is 310 N,
estimate the length of the plate using, for simplicity,.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 8 images

SEE SOLUTION Check out a sample Q&A here

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

Air at 1000C flows at an inlet velocity of 2 m/s between two parallel flat plates spaced 1 cm apart. Estimate the distance from the entrance to the point where the boundary layers meet.
Air at 20°C and 1 atm flows at 3 m/s past a sharp flat plate2 m wide and 1 m long. (a) What is the wall shear stress atthe end of the plate? (b) What is the air velocity at a point4.5 mm normal to the end of the plate? (c) What is the totalfriction drag on the plate?
The drag of an airfoil (Fig.) increases considerably ifyou turn the sharp edge around 180° to face the stream. Canyou explain this?
The main cross-cable between towers of a coastal suspensionbridge is 60 cm in diameter and 90 m long. Estimatethe total drag force on this cable in crosswinds of 50 mi/h.Are these laminar flow conditions?
The so-called Rocket Man, Yves Rossy, fl ew across the Alps in2008, wearing a rocket-propelled wing-suit with the followingdata: thrust = 200 lbf, altitude = 8,200 ft, and wingspan = 8 ft(http://en.wikipedia.org/wiki/Yves_Rossy). Further assume awing area of 12 ft2, total weight of 280 lbf, CDq = 0.08 for thewing, and a drag area of 1.7 ft2 for Rocket Man. Estimate themaximum velocity possible for this condition, in mi/h.
The centerboard on a sailboat is 3 ft long parallel to theflow and protrudes 7 ft down below the hull into seawaterat 20°C. Using flat-plate theory for a smooth surface,estimate its drag if the boat moves at 10 knots.Assume Rex,tr = 5 E5.
In order to avoid boundary layer interference, engineers design a “boundary layer scoop” to skim off the boundary layer in a large wind tunnelFig. . The scoop is constructed of thin sheet metal. The air is at 20°C, and flows at V = 45.0 m/s. How high (dimension h) should the scoop be at downstream distance x = 1.45 m?
Assume the stabilizer of an airplane is a flat plate. If the transition /critical RN 750,000, what is the skin-friction drag of a rectangular stabilizer having a span of 1.73 m and a chord of 0.81 m at a speed of 44.7 meters per second? Assume standard sea level conditions.-round off to 4 decimal places-show complete solution
Assume the stabilizer of an airplane is a flat plate. If the transition /critical RN 750,000, what is the skin-friction drag of a rectangular stabilizer having a span of 1.73 m and a chord of 0.81 m at a speed of 44.7 meters per second? Assume standard sea level conditions.
A wing of 2 percent camber, 5-in chord, and 30-in span istested at a certain angle of attack in a wind tunnel with sealevelstandard air at 200 ft/s and is found to have lift of 30 lbfand drag of 1.5 lbf. Estimate from wing theory (a) the angle ofattack, (b) the minimum drag of the wing and the angle of attackat which it occurs, and (c) the maximum lift-to-drag ratio.
Boeing 737-600 flies at altitude 150o0m above sea level with speed 85 m/s and total drag coefficient equal to (0.075). Find the drag force at this fly condition. Given data /R=287, g=9.81 m/s2, po=0.3648 kg/m2 and wing area 135m^2*
The 2013 Toyota Camry has an empty weight of 3190 lbf,a frontal area of 22.06 ft2, and a drag coefficient of 0.28. Itsrolling resistance is Crr ≈ 0.035. Estimate the maximumvelocity, in mi/h, this car can attain when rolling freely atsea level down a 4° slope.