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</p> Signup and view all the answers

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

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

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

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

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