CE 470 Intermediate Fluid Mechanics

Credit Structure: (2-2)3

Catalog Description:
Bernoulli equation, irrotational flows, flow over immersed bodies, lift and drag concepts. Boundary layers, flow development. Turbulent flows; characteristics of turbulence quantities, eddy viscosity, mixing length theory, velocity profiles in pipe flow. Potential flow: velocity potential, superposition of basic potential flows. Experimental fluid mechanics: measurement of pressure and hydrodynamic forces, velocity and turbulence, flow visualization.

Course Objectives:
The objective is to give some basic fluid mechanics topics which were excluded in CE 371 Fluid Mechanics and CE 372 Hydromechanics courses and also to improve students' ability of imagination of fluid flow through a series of laboratory experiments.

Prerequisites:
CE 371

Textbook(s):
B.R. Munson, D.F. Young and T.H. Okiishi, “Fundamentals of Fluid Mechanics”, John Wiley & Sons Inc., 1994.

Reference(s):
None

Syllabus:
1. Introduction: Finite control volume analysis (review), the Bernoulli equation, examples of use of the Bernoulli equation, restrictions on the use of the Bernoulli equation
2. Differential Analysis of Fluid Flow: Fluid element kinematics, linear motion and deformation, angular motion and deformation, conservation of mass, differential form of continuity equation, cylindrical polar coordinates, the stream function, conservation of linear momentum, description of forces acting on differential element, equations of motion, inviscid flow, Euler's equations of motion, irrotational flow, the Bernoulli equation for irrotational flow, the velocity potential, some basic plane potential flows, uniform flow, source and sink, vortex, doublet, superposition of basic plane potential flows, source in a uniform stream-half body, Rankine ovals, flow around a circular cylinder. Viscous flow, stress-deformation relationships, the Navier-Stokes equations, some simple solutions for viscous incompressible fluids, steady laminar flow between fixed parallel plates, couette flow, steady laminar flow in circular tubes.
3. Boundary Layers: General external flow characteristics, lift and drag concepts, characteristics of flow past an object, boundary layer characteristics, boundary layer structure and thickness on a flat plate, transition from laminar to turbulent flow, turbulent flow, characteristics of turbulence quantities, Reynolds averaged Navier-Stokes equations, eddy viscosity, mixing length theory, internal boundary layers, flow development length, velocity profiles in pipe flow.
4. Experimental Fluid Mechanics: Measurement of flow variables. measurement of pressure, measurement of velocity, measurement of turbulence quantities, flow visualization.

Homeworks, Quizzes, Projects:
None

Computer Usage:
Students very often use computers to perform necessary calculations and draw graphs in preparing reports for the laboratory experiments.

Laboratory Work:
1. Measurement of discharge in open channel and pipe flows
2. Measurement of velocity profiles in a developing boundary layer
3. Measurement of pressure distribution around an immersed body
4. Measurement of hydrodynamic forces on a hydraulic gate
5. Measurement of surface waves in a water channel
6. Measurement of turbulence quantities in a boundary layer

Category Content:
Mathematics and Basic Sciences: None
Engineering Design: None
Engineering Sciences: 3 credits
Humanities & Social Sciences: None
Departmental: None

Instructors:
Ismail Aydin