Conservation of Mass and Steady Flow in Fluid Mechanics
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Questions and Answers

What is the force per unit volume on a fluid element denoted by?

  • 𝜌
  • ∆z
  • f (correct)
  • p
  • Which type of force is due to viscous dissipation and usually ignored in fluid dynamics?

  • Body forces
  • Internal force (correct)
  • Pressure force
  • Gravitational force
  • What is the force acting throughout the volume of the fluid, such as the gravitational force, called?

  • Pressure gradients force
  • Body forces (correct)
  • Viscous dissipation force
  • Internal force
  • Which type of force is due to pressure gradients within the fluid?

    <p>Pressure force</p> Signup and view all the answers

    What is the net force in the x-direction for a cube of fluid determined by a pressure gradient?

    <p>$p \frac{\partial p}{\partial x} \Delta x \Delta y \Delta z$</p> Signup and view all the answers

    What does Euler's equation relate in fluid dynamics?

    <p>Viscosity and velocity gradient</p> Signup and view all the answers

    Which principle states that mass can neither be created nor destroyed, only transferred or transformed?

    <p>Principle of Conservation of Mass</p> Signup and view all the answers

    What does the equation of continuity in fluid dynamics describe?

    <p>Conservation of mass</p> Signup and view all the answers

    $\nabla p$ represents which physical quantity in fluid dynamics?

    <p>Option C</p> Signup and view all the answers

    What does 𝜕𝑝⁄𝜕𝑥 ∆𝑥 ∆𝑦∆𝑧 represent in the context of fluid mechanics?

    <p>Force acting on the top face</p> Signup and view all the answers

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