fluid mechanics
Fluid Mechanics: Fundamentals and Applications, 2nd Edition
Yunus A. Cengel, John M. Cimbala
McGraw-Hill, 2010
Chapter 1
INTRODUCTION AND
BASIC CONCEPTS
Lecture slides by
Mehmet Kanoglu
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Schlieren image showing the thermal plume produced by Professor
Cimbala as he welcomes you to the fascinating world of fluid mechanics.
2
Objectives
• Understand the basic concepts of Fluid Mechanics.
• Recognize the various types of fluid flow problems encountered in practice.
• Model engineering problems and solve them in a systematic manner.
• Have a working knowledge of accuracy, precision, and significant digits, and recognize the importance of dimensional homogeneity in engineering calculations. 3
1–1 ■ INTRODUCTION
Mechanics: The oldest physical science that deals with both stationary and moving bodies under the influence of forces.
Statics: The branch of mechanics that deals with bodies at rest.
Dynamics: The branch that deals with bodies in motion.
Fluid mechanics: The science that deals with the behavior of fluids at rest
(fluid statics) or in motion (fluid dynamics), and the interaction of fluids with solids or other fluids at the boundaries. Fluid dynamics: Fluid mechanics is also referred to as fluid dynamics by considering fluids at rest as a special case of motion with zero velocity.
Fluid mechanics deals with liquids and gases in
4
motion or at rest.
Hydrodynamics: The study of the motion of fluids that can be approximated as incompressible (such as liquids, especially water, and gases at low speeds).
Hydraulics: A subcategory of hydrodynamics, which deals with liquid flows in pipes and open channels.
Gas dynamics: Deals with the flow of fluids that undergo significant density changes, such as the flow of gases through nozzles at high speeds.
Aerodynamics: Deals with the flow of gases
(especially
Yunus A. Cengel, John M. Cimbala
McGraw-Hill, 2010
Chapter 1
INTRODUCTION AND
BASIC CONCEPTS
Lecture slides by
Mehmet Kanoglu
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Schlieren image showing the thermal plume produced by Professor
Cimbala as he welcomes you to the fascinating world of fluid mechanics.
2
Objectives
• Understand the basic concepts of Fluid Mechanics.
• Recognize the various types of fluid flow problems encountered in practice.
• Model engineering problems and solve them in a systematic manner.
• Have a working knowledge of accuracy, precision, and significant digits, and recognize the importance of dimensional homogeneity in engineering calculations. 3
1–1 ■ INTRODUCTION
Mechanics: The oldest physical science that deals with both stationary and moving bodies under the influence of forces.
Statics: The branch of mechanics that deals with bodies at rest.
Dynamics: The branch that deals with bodies in motion.
Fluid mechanics: The science that deals with the behavior of fluids at rest
(fluid statics) or in motion (fluid dynamics), and the interaction of fluids with solids or other fluids at the boundaries. Fluid dynamics: Fluid mechanics is also referred to as fluid dynamics by considering fluids at rest as a special case of motion with zero velocity.
Fluid mechanics deals with liquids and gases in
4
motion or at rest.
Hydrodynamics: The study of the motion of fluids that can be approximated as incompressible (such as liquids, especially water, and gases at low speeds).
Hydraulics: A subcategory of hydrodynamics, which deals with liquid flows in pipes and open channels.
Gas dynamics: Deals with the flow of fluids that undergo significant density changes, such as the flow of gases through nozzles at high speeds.
Aerodynamics: Deals with the flow of gases
(especially