Dimensionless Drag Coefficient Quiz

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Questions and Answers

What does the symbol CD represent in the equation provided?

  • Dimensionless drag coefficient for the particle (correct)
  • Diameter of the column
  • Density of the fluid
  • Distribution coefficient

In the context of the equation, what does 'p' most likely refer to?

  • Particle size (correct)
  • Pressure drop
  • Packed column height
  • Packing material density

What factor determines the terminal falling velocity of a particle in fluid flow through packed columns?

  • Fluid density
  • Column height
  • Gravity acceleration
  • Drag coefficient (correct)

How does an increase in the drag coefficient affect the movement of particles in a packed column?

<p>Slows down the particles (A)</p> Signup and view all the answers

What role does gravity (g) play in the equation provided?

<p>Determines the terminal velocity of particles (D)</p> Signup and view all the answers

What is the formula for the drag force, F3, in the context of fluid flow through packed columns?

<p>F3 = τ' Sp F1up (D)</p> Signup and view all the answers

What does Sp represent in the formula for drag force, F3?

<p>Projected area of the particle perpendicular to flow direction (B)</p> Signup and view all the answers

What does CD represent in the formula for drag coefficient, ρCD = 2τ' / ρu²p?

<p>Dimensionless drag coefficient (B)</p> Signup and view all the answers

How is the dimensionless drag coefficient, CD, calculated in the context of fluid flow through packed columns?

<p>CD = τ' / ρu²p (D)</p> Signup and view all the answers

Which term describes the projected area of the particle perpendicular to the flow direction in the context of fluid flow through packed columns?

<p>Projected area (C)</p> Signup and view all the answers

What does the dimensionless drag coefficient depend on in fluid flow through packed columns?

<p>Reynolds number and particle size (B)</p> Signup and view all the answers

In the context of absorption columns, what does the drag coefficient represent?

<p>The resistance to the motion of particles (C)</p> Signup and view all the answers

For a particle falling through a fluid in a packed column, what does the terminal falling velocity depend on?

<p>Density and viscosity of fluid (D)</p> Signup and view all the answers

What parameter is used to determine the flow behavior in packed columns under different conditions?

<p>Reynolds number (A)</p> Signup and view all the answers

In the context of fluid dynamics, why is knowing the drag coefficient important for engineers working with packed columns?

<p>To calculate the force exerted by the fluid on solid surfaces (A)</p> Signup and view all the answers

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