Example study questions (closed book/closed notes) For the following questions,

Question

Example study questions (closed book/closed notes) For the following questions, answer Yes or No and explain your answer Momentum Transport Laminar flow is a subset of potential flow? Turbulent flow is very orderly and not chaotic Where potential flow is exposed to a wall, a boundary layer forms When a boundary layer forms it begins laminar .All boundary layer flow is turbulent When pipe flow is fully develop the entire cross section is in the boundary layer Time smoothing of vz' is always zero Reynolds stresses represent additional momentum transport associated with turbulent fluctuations Approximation of the Reynolds stresses is a trivial part of analyzing turbulent flow The following are regions of the boundary layer, except: viscous sublayer, buffer layer, inertial sublayer, potential sublayer The eddy viscosity approach replaces the need for Reynolds stresses with a need for eddy viscosity estimates The eddy viscosity is based solely on fluid properties Friction is a loss of mechanical energy to the surroundings

Explanation / Answer

Lamina flow is the subset of potential flow - YES. In a flow regime,if the reynolds stresses are ignored it is called laminar flow and if the viscosity decreases to zero it is called potential flow.
Turbulent flow is orderly and not choatic - NO. Turbulent flow is a flow with high reynolds number and is very disorderly flow.
Where the potential flow exposes to wall, a boundary layer forms - YES. Three-dimensional boudary layer thus formed on the end of the walls.
When boundary layer forms, it begins laminar - YES . When boundary layer forms it begins as laminar flow.

**answering only first four subparts due to olicy and time constraints.

Related Questions

Navigate

• Browse (All)
• Browse E
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.