Consider a laminar flow over a flat plate of length L = 1m. Theboundary layer thickness at the end of the plate is dw for water,and 6, for air for the same free stream velocity. If the kinematicviscositics of water and air arc 1x106 m/s and 1.6x10-5 m/s.respectively, the numerical value of the ratio, w

Answered: Image /qna-images/answer/10b276c9-a6f8-4da4-8776-057e645054b0.jpg

Answered: ninar flow o ver a flat plate thickness…

Engineering

Mechanical Engineering

ninar flow o ver a flat plate thickness at the end of th for the same free stream v watcr and air arc 1x10

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 5.24P: Engine oil at 100C flows over and parallel to a flat surface at a velocity of 3 m/s. Calculate the...

See similar textbooks

Related questions

Q: At a water treatment plant, water (68°F) flows from tank 1 to tank 2 at a rate of 0.60 cfs through a...

A: Note:- From Colebrook equation(Turbulent flow):- 1f=-2logε3.7D+2.51Ref=-2log0.000853.7×0.25+2.512824...

Q: The discharge pressure of an air compressor is 6 times the suction pressure. If the volume flow rate...

Q: What will be the maximum weight of cylinder that can be put as shown in the figure below if the maxi...

A: tension in the cable is given by A = 180 mm2= 0.0180 m2 FAC= 104 x 0.0180 =1.872 N

Q: In a steam power plant, the condenser pressure is 10 kPa. The turbine and pump isentropic efficienc...

A: Given: Condenser pressure = 10 kPaSteam Pressure = 4.5 MPaSteam Temperature =800°C

Q: g o

A: given:

Q: Locate the centroid ỹ of the composite area shown in Fig. 5, then determine the second moment of are...

A: Divide the given section into the segments as shown below,

Q: A railway wagon A of mass 10000 kg collides with another identical wagon B as shown in the figure. I...

A: The maximum compression in the spring S is 0.3536 m or 35.36 cm.

Q: Steam flows at steady state through a converging, insulated nozzle, 25 cm long and with an inlet dia...

Q: What are the important processes of agricultural NUTS products (physical approaches on processing th...

A: The question relates to manufacturing processes related to production of nuts The process flow of pr...

Q: An ice plant owner decided to install a water pump from a nearby clean fresh water source to supply ...

A: Given DataPump Life=20 yearQ1=45.4m3/h=0.0126m3/sη1=70%η2=40%interest i=12%H=43m Power Cost=P 2.10/...

Q: Calculate the internal shear force and the internal bending moment for the beam at every point x, an...

A: We will answer the first question since the exact one was nor specified. Please subit the new questi...

Q: Determine the speed of B if A is moving downward with a speed of vA=4m/s at the instant shown. (Figu...

Q: Task: 1. Discuss the fundamental concept and analyse the operation of Automatic Flight Control Syste...

A: Given Aircraft Flight Control System To find Concept Operation

Q: what are some of the ways by which the blades of windmill be improved

A: Wind energy is an example of renewable energy and its use never harms the environment. But it is an ...

Q: A continuous Monel shaft is to be designed for connecting two power units in a ship. The shaft will ...

A: Given data: L=25 mTmin=-32°CTmax=77°CT=27°Cα=1.2×10-5 m/m°C Need to determine the amount of amount o...

Q: A gasoline line is connected to a pressure gage through a double-U manometer, as shown. If the readi...

Q: A rectangular block of material is subjected to a shear stress of 30MN/m2 together with it's associa...

A: The calculated magnitude of the stresses on a plane is inclined at 30 degrees to the direction of ap...

Q: Find the normal stress of members CB and BF of the truss shown. Cross sectional area of the members ...

A: GIVEN DATA - A PLANE TRUSS GIVEN WE HAVE TO FIND STRESS IN MEMBER CB AND BF

Q: Determine the x-component of R (in Ib). *

Q: 4m seawater (SG=1.031) A 60° 2m

A: Find the hydrostatic force on the gate

Q: shown below. Sa

Q: kN (i) m of water (ii) mm of mercury (i) abs.

A: given- Patm= 75 cm of Hg P= 10N/cm2

Q: 3. You wish to lift a 12,000 lb stone by a vertical distance of 15 ft. Unfortunately, you can only g...

A: NOTE:- As per our company guidelines we are supposed to answer only one question. Kindly repost othe...

Q: ing single pont s measured using centre

Q: The force F of magnitude 700 lb is shown in the figure. It is to be resolved into two components alo...

Q: Oil Air Water Mercury

A: GIVEN DATA - A MULTIFLUID MANOMETER GIVEN WE HAVE TO FIND GAUGE PRESSURE OF AIR

Q: ged parabolic arc the max, bendin

Q: In a rolling operation using rolls of diameter 400mm if a 35mm thick plate cannot be reduced to less...

Q: A pump 254 mm suction pipe and a 127 mm discharge pipe is used to deliver 52 L/s of water. The sucti...

A: Given: The length of suction pipe, Ls = 254 mm The length of discharge pipe, Ld = 127 mm The flow ra...

Q: Consider a 210-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the ...

Q: An angular velocity of 50 rad/s expressed is approximately .. (rpm =revolutions per minute) O 100r r...

A: Calculated rpm ( revolution per minute).

Q: 1. What type of milling machine can be used to make the groove in the shaft? 2. The diameter of the ...

A: 1. Grooves, elongated slots and break-throughs are produced or made for the purpose of receiving fit...

Q: The composite wall of an oven consists of three materials, two of which has known thermal conductivi...

Q: The pump takes water from an open tank below the pump centerline. Determine the maximum static eleva...

A: Write the given data. H=1500 ftPsat=0.69 psiav=0.01608 ft3/lb

Q: A very long rod 5 mm in diameter has one end at 250°C. The surface of the rod is exposed to ambient ...

Q: adius of 10.5 cm. Due to the mal adjustment of spring, the equilibrium speed of governor at top posi...

Q: An sdof system consists of mass 175 kg and a spring constant k 530 kn/m while testing the system a r...

A: Mass m=175 kg Spring constant k=530 kN/m Velocity x˙=.3 m/sec Damping force F=cx˙ and F=450 N Dampi...

Q: 4. A crane is used to lower weights into a lake for an underwater construction project. Determine th...

Q: Determine the displacements and forces on each node shown below. The units of force and displacement...

A: here given data is, K1=200 lb/m K2= 400 lb/m K3= 100 lb/m K4= 300 lb/m Now we will make element mat...

Q: Solve for the reactions on the supports A,B,C & D of the two loaded Beams shown Below.

Q: At the instant shown in (Figure 1) , the car at A is traveling at 10 m/s around the curve while incr...

Q: Carrier 0,36 0.032 PSYCHROMETRIC CHART 0.031 .030 0,40 NORMAL TEMPERATURES SI METRIC UNITS 0,027 Bar...

A: Calculated heat transfer per unit kilogram of dry air.

Q: (b) Crudely model the "balance bird" as consisting of three masses: one mass m at each at the tip of...

A: Given data, Mass of the each wing is m Mass of the body is 2 m Origin of the coordinates is at the t...

Q: A piston–cylinder device with a set of stops initially contains 1.5 moles of gas at 1.00 MPa and 400...

Q: You have 2 kg of saturated steam at P = 2 MPa. How much heat do you have to add to raise the tempera...

A: Given:mass of steam, m=2 kgPressure, P=2 MPaProcess id isobaric,final temperature, T=600o C

Q: The collar of mass m is released from rest while in position A and subsequently travels with negligi...

Q: Determine the ASTM grain size number if 90 grains per square inch are measured at a magnification of...

A: The link between microstructure and material properties (also known as structure-property correlatio...

Q: An automobile is found to have a natural frequency of 2 rod per seconds without passengers and 17.32...

Q: A pump 254mm suction pipe and a 127mm discharge pipe is used to deliver 52L/s of water. The suction ...

Q: Calculate the principal stresses to the given state. Calculate the angle of rotation in the x-y plan...

Concept explainers

Fluid Kinematics

The branch of science that deals with objects which are either in motion or stationary are studied under the branch of classical mechanics. Fluid mechanics is a subcategory of classical mechanics that deals with the behavior of fluids at rest (fluid statics) or in motion (posing some velocity). In fluid kinematics, studies focus on the associated motion of fluid particles or groups of particles, and its associated parameters like displacements, velocity, and acceleration without concerning about the forces that caused the motion. All the laws of classical mechanics are applied in the study of fluid kinematics.

Question

Consider a laminar flow over a flat plate of length L = 1m. The
boundary layer thickness at the end of the plate is dw for water,
and 6, for air for the same free stream velocity. If the kinematic
viscositics of water and air arc 1x106 m/s and 1.6x10-5 m/s.
respectively, the numerical value of the ratio, w

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 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

A fluid with a constant density of 961 kg/m3 and a constant viscosity of 1.419×10-3 Kg/m.s is flowing over a flat plate at a stream free velocity of 0.87 m/s. If the plate has a length of 2 m, answer the following: 1.What is Reynolds number at a point that is (1/4)L down the entrance? 2.Is the flow laminar or turbulent? 3.Calculate the thickness of the boundary layer in mm at (1/4)L down the entrance 4.Calculate the drag coefficient at (1/4)L down the entrance
For the steady flat plate boundary layer flow, determine the wall shear stress assuming the following velocity profile. Where, δ is the boundary layer thickness and U is the outer flow velocity (constant).
Consider a refrigeration truck traveling at 70 mi/h at a location where the air is at 1 atm and 80°F. The refrigerated compartment of the truck can be considered to be a 9-ft-wide, 8-ft-high, and 20-ft-long rectangular box. Assuming the airflow over the entire outer surface to be turbulent and attached (no flow separation), determine the drag force acting on the top and side surfaces and the power required to overcome this drag.
What fluid property is responsible for the development of the velocity boundary layer? What is the effect of the velocity on the thickness of the boundary layer?
Explain briefly in your own words (parts a-d)a) Why doesn’t the surface roughness affect the pressure drop in a laminar pipe flow? b) For bluff bodies, the drag coefficient decreases abruptly when the flow becomes turbulent. Why? c) Consider a spinning ball (in the clockwise direction) moving with a velocity U. Explain how the lift force is formed on the ball and show its direction. Uwd) For flow over streamlined bodies, drag force usually increases when the flow becomes turbulent.Why? e) Consider a pipe with a radius R and length L (extending from (1) to (2)). Inside the pipe there is a solid cylinder with a radius k×R (k  1). The planes (1) and (2), separated by a distance L have pressures P1 and P2 respectively, with P1 > P2. At t = 0, the inner solid cylinder suddenly begins to be pulled at a constant speed U in the negative z direction. Thefluid is an incompressible Newtonian liquid with dynamic viscosity μ and density ρ. In orderto find the solution for the velocity field in…
The passenger compartment of a minivan traveling at 50 mi/h in ambient air at 1 atm and 80°F is modeled as a 4.5-ft-high, 6-ft-wide, and 11-ft-long rectangular box. The airflow over the exterior surfaces is assumed to be turbulent because of the intense vibrations involved. Determine the drag force acting on the top and the two side surfaces of the van and the power required to overcome it.
describe thickness of the boundary layer in laminarand turbulent flows, Boundary layer separation and methods to avoid theseparation of the boundary layer, and Magnus effect etc
The air at 65°C and with a viscosity of 1.86x10^-5 m^2/s flows along a flat plate at 12 m/s, under laminar regime, which distance, from the leading edge, where the boundary layer thickness reaches 0.5 cm?
Aft of the transition point between laminar and turbulent flow A. the boundary layer gets thinner and the speed increases B. the boundary layer thickens and the speed decreases C. the mean speed increases and the surface friction increases D. the mean speed increases and the surface friction decreases
Light oil at 75°F flows over a 17-ft-long flat plate with a free-stream velocity of 5 ft/s. Determine the total drag force per unit width of the plate.
The viscous laminar flow of air over a flat plate results in the formation of a boundary layer. The boundary layer thickness at the end of the plate of length L is Delta L . When the plate length is increased to twice its original length. The percentage change in laminar boundary layer thickness at the end of the plate (with respect to Delta L ) is ______
A 20 °C water flows to 50cmx60cm flat plate with velocity of 6m/s . The flat plate surface temperature is maintained at 40 °C . The air flows parallel to the 50cm side of the plate. If the kinematic viscosity of water is 78x10-8 m2/s, at what length the flow become turbulent? If the average laminar heat transfer coefficient of water is 7740W/m2 °C , what is the overall heat transfer at the laminar section?