Fluid Dynamics Parameters Quiz

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Which parameter signifies lower resistance and a decrease in pressure drop?

Equivalent particle diameter

Bed height

Bed porosity (correct)

Particle sphericity

What impact does particle sphericity have on flow resistance?

No impact on flow resistance

Causes turbulence in flow

Increases flow resistance

Decreases flow resistance (correct)

Which factor generally creates more flow resistance in filtration?

Bed height

Equivalent particle diameter (correct)

Superficial velocity

Fluid viscosity

What does bed tortuosity account for in filtration systems?

Complex, winding paths fluids take through the bed Signup and view all the answers

What limitation exists due to the idealized capillary tube model in packed beds?

Variations in pore size and shape Signup and view all the answers

Which type of filtration mechanism involves straining and impingement?

Surface / Screen filtration Signup and view all the answers

Which parameter in the Kozeny-Carman equation quantifies the pressure drop experienced by a fluid flowing through a packed bed of solid particles?

Fluid viscosity (μ) Signup and view all the answers

What effect does increasing fluid viscosity have on the pressure drop in the context of the Kozeny-Carman equation?

Increases pressure drop Signup and view all the answers

In the context of the Kozeny-Carman equation, what impact does a longer bed height have on the pressure drop experienced by a fluid?

Increases pressure drop Signup and view all the answers

Which parameter in the Kozeny-Carman equation is affected by higher flow rates necessitating a greater pressure drop to overcome resistance?

Superficial velocity (Vo) Signup and view all the answers

What characteristic of fluids offers more resistance, leading to a higher pressure drop as per the Kozeny-Carman equation?

Higher viscosity Signup and view all the answers

When considering the Kozeny-Carman equation, which parameter captures the interplay between key factors such as bed height and superficial velocity?

Bed porosity Signup and view all the answers

Why is the mechanical strength of filter medium higher in depth filtration compared to surface filtration?

Due to the smaller particle size retained in depth filtration Signup and view all the answers

How does the cost of equipment differ between surface and depth filtration systems?

Depth filtration equipment is cheaper and does not require ancillary equipment Signup and view all the answers

Which type of filtration is primarily used for separating solid particles larger than one micron in wastewater treatment?

Particle Filtration Signup and view all the answers

What distinguishes centrifugal filtration from other types of filtration systems mentioned in the text?

It applies significant centrifugal force exceeding gravity to propel fluid through a filter medium Signup and view all the answers

How do membrane filters differ from other filtration systems in terms of what they remove?

Membrane filters remove dissolved solids and small organic particles from wastewater Signup and view all the answers

Why does the Kozeny-Carman Equation play a significant role in depth filtration systems?

It helps calculate the superficial velocity of the fluid through the filter medium Signup and view all the answers