Problem: If the velocity profile of a fluid over a plate is parabolic with the vertex 20 cm from the plate, where the velocity is 120 cm/s. Calculate the velocity gradients and shear stresses at a distance of 0, 10, and 20 cm from the plate, if the viscosity of the fluid is 8.5 poise.

Problem: If the velocity profile of a fluid over a plate is parabolic with the vertex 20 cm from the plate, where the velocity is 120 cm/s. Calculate the velocity gradients and shear stresses at a distance of 0, 10, and 20 cm from the plate, if the viscosity of the fluid is 8.5 poise.

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: E thrust of a shaft is taken by a collar bearing provided with a forced cation system. The…

Q: Please answer: Suppose water (viscosity @ 100C = 0.658x10-6m2/s) flows at 8 m/s over a flat plate 15…

A: Given data: v=0.658×10-6 m2/sU=8 m/sL=15 cm Need to determine the Reynolds number at the downstream…

Q: For the Couette flow of Fig., calculate the linear strain rates in the x- and y-directions, and…

A: The data given is, Distance between the parallel plates = h The equation of the steady,…

Q: A square plate of size 1 m x 1m and weighing 350 N slides down an inclined plane with a uniform…

A: Given data, A= 1*1 m2 W= 350 N V= 1.5 m/s h= 1mm = 0.001 m Let μ is dynamic viscosity

Q: (i) Discuss Newton's law of viscosity and define Newtonian and non - Newtonian fluids. (ii) With…

A: Newton’s law of viscosity :As per law the shear stress between two adjacent layers of fluid is…

Q: A body weighing 1000 N slides down at a uniform speed of 1 m/s along a lubricated inclined plane…

Q: A shaft 70.0 mm in diameter is being pushed at a speed of 400 mm/s through a bearing sleeve 70.2 mm…

A: Answer: The power required to rotate the shaft is 132.94 kW.

Q: A flywheel weighing 700 N has a radius of gyration of 0.3 m located in a machine and rotating at 600…

Q: turbulent flow of a fluid in 0.6m diameter pipe, the velocity 0.15m from the wall 2.7m/s. Estimate…

Q: Consider a wing in a high-speed wind tunnel. At a point on the wing, the velocity is 850 ft/s. If…

Q: The olive oil is flowing between the two parallel plates which has 0.072 m diameter. The lower and…

A: Given data:-distance between two plates, D=0.072mviscosity of olive oil,…

Q: 3. A capilary tube of inside diameter 6 mm connects tank A and open container B, as shown in figure.…

Q: Shaft (250 mm diameter) rotates at 250 rpm inside a sleeve (251 mm diamet with a constant clearance.…

Q: Example • Calculate the dynamic viscosity of an oil, which is used for lubrication between a square…

A: Given data, Thickness t= 1.5 mm = 0.0015 m v= 0.3 m/s Area A = 0.8*0.8 m² θ=30° W= 300 N

Q: 3. A square block is weighing 300 N and having a length of 20 cm on one edge slips on a 20° inclined…

A: Given data: F=300 NL=20 cmθ=20°t=1 mm Need to determine the terminal velocity of the block down the…

Q: In a simple concentric shaft-bearing arrangement, the lubricant flows in the 2 mm gap between the…

Q: Explain the fundamental reason for shear viscosity oxz bị along the x-axis with velocity v(z). How…

A: Shear viscosity's primary function is to oppose the flow of fluid from one layer to another.

Q: Calculate the pressure drop of starfruit juice drink that flows with a velocity of 1.5 m/s through…

A: Given date Velocity = 1.5 m/s Length = 1.2m Diameter = 9mm Density = 2300kg/m^3 Viscosity =…

Q: Anoilring bearing of transmission shaft of 50 mm diameter in which journal rotates at 1450 rpm,…

Q: A 120 mm diameter shaft is rotating at 280 rpm in a sleeve of 128 mm internal diameter and 800 mm…

Q: A large plate is pulled at a constant speed of U = 4 m/s over a fixed plate on 5-mm-thick engine oil…

A: The given velocity profile is –

Q: 1) The velocity profile of a viscus fluid over a plate is parabolie with vertex 25 cm from the plate…

A: Given data: The distance between vertex and plate is, 25 cm The velocity of fluid at the vertex is,…

Q: Calculate velocity gradients and shear stress for y = 0.0, 0.2, 0.4, and 0.6 m, if the velocity…

Q: cylinder with a length of 1.2 m and a diameter of 2 cm rotate inside another cylinder with same…

Q: Water at 20oC flows at 1.50 mps through a tube whose inside diameter is 3 mm. If the coefficient of…

A: Flow rate: the amount of fluid flowing through a particular crosssection per unit time is known as…

Q: Consider a steady, incompressible flow between two parallel plates. The top plate at a temperature…

A: Write the expression of shear stress. τ=μdudy

Q: Example viscosities u' and u" on the two sides of the plate. The plate is pulled at a constant…

Q: Requirements If the velocity profile of a fluid over a flat plate is parabolic with free stream…

Q: A steel tape 0.5 mm thick and 20 mm wide is pulled by a force F through a slit opening 1.5 mm and…

A: Given data: The thickness of the tape, t = 0.5 mm. The width of the tape, w = 20 mm. The slit…

Q: A steel tape 0.5 mm thick and 20 mm wide is pulled by a force ? through a slit opening 1.5 mm and…

A: Write the given data with suitable variables: μ=0.4v=10 m/s

Q: Problem 7: A 7.5cm diameter shaft rotates at 0.1m/s constant velocity between two plates as in the…

Q: Find the flow behavior index values for a viscometer for the fluid that gives the following…

Q: A fluid with a shear rate of 0.5 per second, and the shearing stress 0.76 N per m2. What is its…

A: Given Shear stress = 0.76 N/m2 Shear rate = 0.5 per second Find Dynamic viscosity

Q: A piston having a diameter of 9in. and a length of 995in. slides downward with a velocity V through…

A: Given is Diameter of piston (D) = 9 in. length of piston (L) = 995 in. weight of piston (W) = 7836…

Q: A large plate is pulled at a constant speed of U = 4 m/s over a fixed plate on 5-mm-thick engine oil…

A: Part a We have from given diagramy=V2KV2=KyNow for above equationWe use the bondary…

Q: Given an open tank filled with oil that is discharging through a 35-meter long commercial annulus…

A: GivenRi=2cm=0.02mdi=0.04mh=5mS.G=0.9L=35mμk=4×10-5 m2/s

Q: A flat plate of area 2.5 x 10 mm is pulled with a speed of 0.4 m/s relative to another plate located…

Q: Using your own words Discuss in details the concept of bouncy force and flotation. Discuss the…

A: Concept: Bouncy Force: The upward force which is exerted by the fluid against the weight of…

Q: A cylindrical plug, 120mm long with a diameter of 95 mm, slides concentrically in a fixed cylinder…

A: Note: As per policy we can solve the first question only from multiple questions. Please resubmit…

Q: 2 m-1)° = y + 0.6 m = 1 m 10 S

A: Calculated velocity gradients and shear stress.

Q: pulled at a relative velocity of 0.40 m/s greater than the top plate. The fluid used is water at…

Q: A square block weighing 1.1 KN and 250 mm on an edge slides down an 20 degrees inclined on a film of…

Q: What type of flowc

A: Laminar flow (re<2000)

Q: Q3: A very lange thin plate is centered in a gap of width Co-o6m) with different oils of unknown…

Concept explainers

Mechanical Drawings

A mechanical drawing is described as a technical drawing created by engineers following standard layout conventions, terminology, interpretation, and many other factors. It is also known as an engineering drawing.

Question

Please see attached document. Thank you!

Transcribed Image Text:Problem: If the velocity profile of a fluid over a plate is parabolic with the vertex 20 cm from the plate, where the velocity is 120 cm/s. Calculate the velocity gradients and shear stresses at a distance of 0, 10, and 20 cm from the plate, if the viscosity of the fluid is 8.5 poise.

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

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

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

Engine oil at 100C flows over and parallel to a flat surface at a velocity of 3 m/s. Calculate the thickness of the hydrodynamic boundary layer at a distance 0.3 m from the leading edge of the surface.
A large plate is pulled at a constant speed of U = 4 m/s over a fixed plate on 5-mm-thick engine oil film at 20°C. Assuming a half-parabolic velocity profile in the oil film, as sketched, determine the shear stress developed on the upper plate and its direction. What would happen if a linear velocity profile were assumed?
A large plate is pulled at a constant speed of U = 4 m/s over a fixed plate on 5-mm-thick engine oil film at 20°C. Assuming a half-parabolic velocity profile in the oil film, while the flow is developing as sketched, determine the shear stress on the upper plate and its direction. Repeat for the linear profile (dashed line) that develops after a long time
Consider a wing in a high-speed wind tunnel. At a point on the wing, the velocity is 850 ft/s. If the test-section flow is at a velocity of 780 ft/s, with a pressure and temperature of 1 atm and 505°R, respectively, calculate the pressure coefficient at the point. detailed solution pls
If the velocity profile of a fluid over a flat plate is parabolic with free stream velocity of 120 cm/s occurring at 20 cm from the plate. Find the velocity gradient and shear stress at a distance of 10 cm from plate. dynamic viscosity = 8.5 Poise
Calculate the pressure drop through horizontal sanitary stainless steel tubing (9 mminner radius and 1.2 m long) for an apple juice drink that flows with a velocity of 3.13 ms -1 . The density and viscosity of apple juice drink are 1100 kg m -3 and 0.8 x 10 -3 kg m -1 s -1 , respectively. Use the Moody diagram to solve this problem.
A square block is weighing 300 N and having a length of 20 cm on one edge slips on a 20° inclined surface in which there is a film of SAE 30 at 10°C oil. What is the terminal velocity of the block down the incline if the oil thickness at this condition is 1 mm?
Answer the following: What are the characteristics of laminar and turbulent flow? Cite examples of fluids which are laminar and turblulent. What is Reynold’s number? What is its relevance in fluid flow. Define viscosity and ts properties.
What is the kind of stress applied on the illustration which has caused the fluid to create a velocity profile? a. Shear Stress b. Normal Stress c. Friction
Conduct thorough a research on Reynolds Number, laminar and turbulent flow as it relates to mechanics of fluids
Prove Navier Stokes equation for incompressible fluids
An oil (viscosity 1 Pa.s, density 800kg/m3) is flowing in an axisymmetric pipe. The flow is fully developed and laminar and the velocity at the centre of the pipe is = 30cm/s. The velocity cross-sectional profile is parabolic as: u(r) = U0(1- r2/R2) . Here r is the distance of the point to the pipe centre where the velocity is u(r). . R is radius of pipe (R=4mm). Calculate: the shear stress at the pipe wall the shear stress within the fluid 2 mm from the pipe wall the Reynold’s number of the flow