Engineering, 28.02.2020 05:50, allyfurby
Consider fully developed laminar flow in the annulus between two concentric pipes. The outer pipe is stationary, and the inner pipe moves in the x direction with speed V. Assume the axial pressure gradient is zero ( ∂p/∂x = 0). (a) Obtain a general expression for the shear stress, τ, as a function of the radius, r, in terms of a constant, C1. (b) Obtain a general expression for the velocity profile, u(r), in terms of two constants, C1 and C2. Obtain expressions for (c) C1 and (d) C2. Note: Use boundary conditions: at r = ri u = V0 and at r = ro u = 0.
Answers: 3
Engineering, 04.07.2019 12:10, Ryantimes2
On a average work day more than work place firs are reorted
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Engineering, 04.07.2019 18:10, meganwintergirl
Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
Answers: 3
Engineering, 04.07.2019 18:10, 0436500
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
Answers: 1
Consider fully developed laminar flow in the annulus between two concentric pipes. The outer pipe is...
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