MECH336 Fluid Mechanics
Spring 1998; DuPont 104; TR 11:00-12:15
- Chapter 6: Viscous flow in ducts (3 lectures)
Laminar and turbulent flow; developing and fully-developed flow;
laminar flow in a pipe; Darcy friction factor; turbulent flow in pipes;
Moody chart; 3 types of pipe-flow problems.
- Chapter 7: Boundary Layer Flows (6 lectures)
Boundary layer (BL) in external flows; Karman's analysis for flat plate;
displacement thickness; derivation of BL equations from N-S equations;
turbulent BL; BL with pressure gradient; friction drag and pressure drag;
C_D and C_P; D' Alembert's Paradox; forces on Lifting bodies;
drag at low Reynolds numbers; Kutta-Joukowski Theorem.
- Mid-Term 1: Tuesday, 17 March
- Chapter 8: Inviscid Incompressible Flows (8 lectures)
Concept of stream function and potential function;
continuity and irrotationality; streamlines and equipotential lines;
singularities: source/sink, vortex; Rankine half-body, Rankine oval;
doublet; doublet with circulation in uniform flow; 3-d potential flows;
numerical methods (finite-difference technique).
- Spring-Break: April 4 to April 12
- Mid-Term 2: Tuesday, 21 April
- Chapter 9: Compressible Flow (7 lectures)
Mach number; equation of state; isentropic process;
compression waves in fluids; speed of sound; stagnation properties;
Mach number relations for density and pressure;
Isentropic flow with area changes; Laval nozzle; choked flow;
normal shock; converging/diverging nozzles;
compressible duct flow with friction; Mach cone; oblique shock;
Prandtl-Meyer expansion waves; supersonic airfoils.
- Last day of class: May 20