Fluid Mechanics - Exam Review Chapter 1-3 || Complete Questions & Solutions (100% Verified)

Fluid Mechanics - Exam Review Chapter 1-3 || Complete Questions & Solutions (100% Verified) Fluid Mechanics - Exam Review Chapter 1-3 || Complete Questions & Solutions (100% Verified) Fluid mechanics - ANSWER - Study of fluids at rest (fluid statics) or in motion (fluid dynamics) and the subsequent effects of the fluids on the boundaries (pressure or force) The difference between thermodynamics and fluid mechanics - ANSWER - Thermodynamics deals with systems in equilibrium, most realistic problems involve non-equilibrium What is typically missing from a thermodynamic analysis? - ANSWER - Friction (Typically assume steady, incompressible flow with negligible temperature change and neglect any heat transfers from the pipe) Closed system - ANSWER - A fixed, identifiable quantity of mass to be studied What are the two features of a closed system? - ANSWER - 1. No mass can cross 2. The boundaries of the system can move or deform and energy may be exchanged with the surroundings Control Volume - ANSWER - (open system) a region of space to be studied through which fluid generally flows Characteristics of control volume - ANSWER - Both mass and energy may cross the boundaries Fluid - ANSWER - A liquid or a gas Basic distinction between solids and fluids - ANSWER - It is based on how the materials deform under the action of an external shear (tangential) stress How does a solid act when shear stress is applied? - ANSWER - They deform or bend How does a fluid act when shear stress is applied? - ANSWER - Fluids deform continuously Other differences between solids and fluids - ANSWER - They have different molecular structures and bonds between molecules and atoms. Fluids tend to flow when we interact with them (the slightest shear force applied to a fluid causes it to move) Qualitatively - ANSWER - Identify the type of characteristic