OOμ=H=H=μ=MAR22R¹2 (L+R)ΜΩΔR2&R³ (L+R/4)MAR20R³ (L+R/4)ΜΩΔΙ2zR³ (L+R) Required informationThe rotating-cylinder viscometer in the image shears the fluid in a narrow clearance Ar as shown. Assume a linear velocitydistribution in the gaps.Viscousfluid μRSolidcylinder→Ar<<

Given:- The rotating-cylinder viscometer shears the fluid in narrow clearance ∆r The magnitude of…

Answered: Required information The…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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The block slides at a constant speed on a surface with friction. In each case, the water jet has velocity 50 m/s and cross-sectional area 5 cm2, and the block has velocity 25 m/s. In case (a), the jet is deflected to an angle of 60° from horizontal relative to the block, as shown. In case (b), the jet is deflected 180°. Calculate the friction force in each case. Apply both a moving Reference Frame (RF) and a fixed RF. Use the VSM. Check that both RFs give the same friction force for a given case. (We would not expect the two cases to have the same friction force!) Density of water is 1000 kg/m3. All jets are open to the atmosphere. case (a) 60° case (b)
Problem-1 If the laminar velocity profile is approximated by the cubic-order polynomial ū = a1 + a2ỹ+ azy² + a4ÿ³ where, ū = u/Ue and y = y/8 with U, and & being the edge velocity and boundary-layer thickness, respectively. a) Find out the velocity profile, by determining the unknown coefficients a1, a2, az and a4. Plot the velocity profile. b) Find out the analytical expression for the boundary layer, displacement and momentum thickness and also find out their stream-wise variation as a function of x. Specifically %3D prove that 8/a = 4.64/VRe,, 8./x = 1.74// Re, and 0/x = 0.646//Re,

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Required information The rotating-cylinder viscometer in the image shears the fluid in a narrow clearance Ar as shown. Assume a linear velocity distribution in the gaps. Viscous fluid Solid cylinder →Ar<<