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ASHA 777 [7]
2 years ago
9

By using order of magnitude analysis, the continuity and Navier-Stokes equations can be simplified to the Prandtl boundary-layer

equations. For steady, incompressible, and two-dimensional flow, neglecting gravity, the result is delta u/ delta x + delta v/ delta y= 0; u delta u/ delta x +v delta u/ delta y= -1/p(delta u/ delta x)+ v delta^2 u/ delta y^2 Use L and V0 as characteristic length and velocity, respectively. Non-dimensionalize these equations and identify the similarity parameters that result.
Engineering
1 answer:
Mademuasel [1]2 years ago
7 0

Answer: Attached below is the well written question and solution

answer:

i) Attached below

ii) similar parameter =  \frac{V}{VoL } = 1 / Re

Explanation:

Using ;  L as characteristic length and Vo as reference velocity

i) Nondimensionalize the equations

ii) Identifying similarity parameters

the similar parameters are  = \frac{V}{VoL } = 1 / Re

Attached below is the detailed solution

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A site is underlain by two layers of normally consolidated clayey sand. The unit weights of the top layer are 19 and 21 kN/m2 an
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Answer:

A) attached below

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C) attached below

Explanation:

attached below is a detailed solution

A) attached below

B) Determine the geostatic vertical effective stress and the geostatic horizontal effective stress at point A

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3 years ago
At an operating frequency of 5 GHz, a 50 lossless coaxial line with insulating material having a relative permittivity r = 2.25
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Answer:

The answer is "150 \Omega".

Explanation:

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                        = \frac{3 \times 10^8}{ 2.25 \times  (5  \times 10^9)}\\\\= \frac{3}{ 2.25 \times  5\times 10 }\\\\= \frac{3}{ 22.5 \times  5 }\\\\= \frac{3}{ 112.5}\\\\= 0.04 \ m.

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Because it is an integrated half-wavelength amount,

Z_{in} = Z_L = 150 \ \Omega

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A copper-constantan thermocouple is to be used to measure temperatures between 0 and 200°C. The e.m.f. at 0°C is 0 mV, at 100°C
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