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Svetradugi [14.3K]
3 years ago
12

1. When and why should we use the Pattern option?

Engineering
1 answer:
sweet-ann [11.9K]3 years ago
4 0

Answer:

Pattern as in texture is easy to see any flaws in your 3D design.

Explanation:

You might be interested in
The Reynolds number for flow over a fixed horizontal flat plate is constant throughout its length. a) True b) False
ANTONII [103]

Answer: False

Explanation: Reynolds number is the number for determining he flow pattern of the behavior of fluids.It judges the flow of the fluid ans states whether it is of turbulent or laminar natured. This number has the property of kinematics as well as statics. It can also be defined as the ratio between the inertial force to viscous force.It's length changes along with change length of the horizontal plate .Thus, the statement given is false.

5 0
4 years ago
For better thermal control it is common to make catalytic reactors that have many tubes packed with catalysts inside a larger sh
Paul [167]

Answer:

the  pressure drop  is 0.21159 atm

Explanation:

Given that:

length of the reactor L = 2.5 m

inside diameter of the reactor d= 0.025 m

diameter of alumina sphere dp= 0.003 m

particle density  = 1300 kg/m³

the bed void fraction \in =  0.38

superficial mass flux m = 4684 kg/m²hr

The Feed is  methane with pressure P = 5 bar and temperature T = 400 K

Density of the methane gas \rho = 0.15 mol/dm ⁻³

viscosity of methane gas \mu = 1.429  x 10⁻⁵ Pas

The objective is to determine the pressure drop.

Let first convert the Density of the methane gas from 0.15 mol/dm ⁻³  to kg/m³

SO; we have :

Density =  0.15 mol/dm ⁻³  

Molar mass of methane gas (CH₄) = (12 + (1×4) ) = 16 mol

Density =  0.1 5 *\dfrac{16}{0.1^3}

Density =  2400

Density \rho_f =  2.4 kg/m³

Density = mass /volume

Thus;

Volume = mass/density

Volume of the methane gas =  4684 kg/m²hr / 2.4 kg/m³

Volume of the methane gas = 1951.666 m/hr

To m/sec; we have :

Volume of the methane gas = 1951.666 * 1/3600 m/sec = 0.542130 m/sec

Re = \dfrac{dV \rho}{\mu}

Re = \dfrac{0.025*0.5421430*2.4}{1.429*10^5}

Re=2276.317705

For Re > 1000

\dfrac{\Delta P}{L}=\dfrac{1.75 \rho_f(1- \in)v_o}{\phi_sdp \in^3}

\dfrac{\Delta P}{2.5}=\dfrac{(1.75 *2.4)(1- 0.38)*0.542130}{1*0.003 (0.38)^3}

\Delta P=8575.755212*2.5

\Delta = 21439.38803 \ Pa

To atm ; we have

\Delta P = \dfrac{21439.38803 }{101325}

\Delta P =0.2115903087  \ atm

ΔP  ≅  0.21159 atm

Thus; the  pressure drop  is 0.21159 atm

4 0
3 years ago
A 0.01 m3 piston and cylinder contains an ideal gas at 5.92154 atm, 290 K . A constant pressure process produces 54 kJ of work o
Debora [2.8K]

Answer:

Final Volume of the gas = 0.1 m^3

Explanation:

Check the attached file for the calculations involved in this solution

4 0
3 years ago
The largest class of errors in software engineering can be attributed to _______.
Ilya [14]

Answer:

improper imput validation

Explanation:

6 0
2 years ago
What is the last item on the vehicle starting checklist
larisa86 [58]

The last item on the vehicle starting checklist before a driver begins to travel is for the driver to release the service brake.

<h3>What does it mean to release the brake?</h3>

The Release Parking Brake message implies that your parking brake is said to be currently engaged and as such one needs to  release the parking brake before one can be able to drive the vehicle.

Therefore, The last item on the vehicle starting checklist before a driver begins to travel is for the driver to release the service brake.

See full question below

what is the last item on the vehicle starting checklist before a driver begins to travel?

Learn more about checklist from

brainly.com/question/16041035

#SPJ11

4 0
2 years ago
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