Process Fluid Mechanics CENG 2220 Instructor: Francesco Ciucci, Room 2577A (Lift 27-29), Tel: 2358 7187, email: francesco.ciucci@ust.hk. Office Hours: Tuesday 17:00-18:00 or by email appointment Teaching Assistants: (Head TA) (Head TA) Jin LI (Jimmy), Room 7118, Tel: 5423 3765, email: jlicm@ust.hk. Office Hours: Friday 15:00-16:00 or by email appointment Qing (Tracy) LI, Room 7107, Tel: 2358 8825, email: qlibb@connect.ust.hk. Office Hours: Friday 16:00-17:00 or by email appointment Faheem (Fem) Mushtaq, Room 2001, CYT bldg. Tel: 56229592, email: fmushtaq@connect.ust.hk. Office Hours: Thursday 17:00-18:00 or by email appointment Classes will meet on Tuesday and Thursday from 9:00 am until 10:20 am in room 2404 (Lift 17-18) Tutorials will be held on Friday from 6 pm to 6.50 pm in room 1103 (Acad Concourse) Homework should left in the CENG 2220 box outside the MAE general office Room 2568 (Lift 27-28) What is the course about? The importance of this course for the profession of the chemical and environmental engineer is readily appreciated because fluid systems are encountered in many important problems involving heat and mass transfer, chemical reactor analysis and design, pollutant transport and many more. In the course, we will study the fundamentals and applications of fluid mechanics. We will develop a physical understanding of fluid flows by emphasizing real-world engineering examples and by using flow visualization examples. There are weekly 160 minutes of lecture time. To understand the material in this course it is essential to attend the lectures, study the notes and required textbook (including its DVD resources), and work on the homework assignments. 1
Course Objectives You will develop a general understanding of fluid mechanics by 1. Learning to use control volume analysis to solve basic fluids problems and understand fundamental engineering principles 2. Understanding and using physical intuition and equations to determine pressure and velocity variations in internal and external flows 3. Understanding the concept of viscosity and where viscosity is important in real flows 4. Learning to employ equations in combination with physical intuition and experimental data to determine losses in flow systems 5. Using dimensional analysis to design physical or numerical experiments and to apply dynamic similarity Course Learning Outcomes At the end of this course, you should have a better understanding of fluid mechanics; in particular, you should be able to: 1. distinguish and analyze the fundamental concepts and properties of fluids 2. apply equations of hydrostatics and Archimedes principle in order to compute forces and moments acting on submerged and floating bodies 3. apply the conservation equations and Bernoulli equation to problems in fluid flow 4. use control volumes to determine the velocity, flow rate, mass, force or energy balance for fluid flows 5. derive the mass, momentum and energy conservation equations of fluid motion in integral and differential forms 6. use Buckingham s Pi theorem to develop dimensionless groups and apply similarity and modeling procedures 7. describe the characteristics of laminar and turbulent flows in pipes If you do not have them already, this course will help you develop effective problemsolving skills. Assessment Assessing your understanding of the subject discussed in class is instrumental to help you achieve the learning outcomes outlined above and to produce evidence of learning. The understanding of the material developed during the class will be assessed by homework exercises by a mid-term and a final examination. While collaboration between students on homework is encouraged, copying is not. Each student is responsible for crafting and submitting his/her own individual assignment. The homework assignments are taken from the textbook and will be typically due 1 week after the topic is discussed during lecture. It is required that homework sets are clearly written on clean paper and that SI units are used. 2
Turning a homework set late will result in the grade being halved, unless you have prior authorization from the instructor or the TA At the mid-term and final exams, you are allowed to bring a calculator and your own handwritten course notes. You are not allowed to bring the textbook, copies of the instructor s notes, copies of your friends notes etc. and we will screen for this during the exam. The final exam will cover the whole content of the course. Each component will be evaluated as follows: Homework 25% Mid-Term Exam 25% Final Exam 50% Learning Environment It is our responsibility to make this course an engaging and stimulating learning experience for all. While collaborative learning is encouraged both inside and outside the classroom, it is expected that you take full responsibility for your own work. For guidelines on proper classroom behavior and academic integrity please see the official University s guidelines http://tl.ust.hk/integrity/index.html. Since your final grade is determined by your performance on tests and homework, you are encouraged to attend the lectures. In order to ensure a pleasant learning environment, you are asked you to avoid eating or drinking during class, to refrain from talking aloud and to turn off electronic devices such as cellphones, ipads, ipods, and computers. Textbooks Required: - Yunus Cengel & John Cimbala. Fluid Mechanics: Fundamentals and Applications. 3 rd Edition. McGraw-Hill Science/Engineering/Math (2014). Optional: - G. M. Homsy et al. Multimedia Fluid Mechanics DVD-ROM. 2 nd edition. Cambridge University Press (2008) - James O. Wilkes. Fluid Mechanics for Chemical Engineers. 2 nd Edition. Prentice Hall (2005) Topics Properties of Fluids Description of important parameters of fluids such as incompressibility, compressibility, density, specific gravity, vapor pressure, surface tension, viscosity, stresses, and no slip conditions. 3
Pressure and Statics of Fluids Pressure and Pressure measurement devices (barometer and manometer), hydrostatic forces on submerged plane and curved surfaces, and buoyancy. Fluid Kinematics Lagrangian and Eulerian descriptions, acceleration of a fluid particle, flow patterns (streamlines, streaklines, timelines and pathlines), vorticity and rotationality. the Reynolds transport theorem. Mass, Bernoulli, and Energy Equations Conservation of mass, force balance across streamlines, derivation of the Bernoulli equation, applications and limitations on the use of the Bernoulli Equation, energy analysis of steady and unsteady flows. Momentum Analysis of Flow Systems Newton s laws and conservation of momentum, forces acting on a control volume, linear and angular momentum equations, radial flow devices and introduction to turbomachinery. Dimensional Analysis and Modeling Dimensions and units, dimensional homogeneity, nondimensionalization of equations, dimensional analysis and similarity via the Buckingham Pi theorem, experimental testing and incomplete similarity, flow rate and velocity measurements. Flow in Pipes Laminar and turbulent internal flows, connection to dimensional analysis and the Reynolds number, entrance and fully developed regions, viscous and turbulent stresses, major and minor Losses, pump selection and pump scaling laws. Schedule (tentative) Week 1 Introduction and Basic Concepts Week 2 Properties of Fluids Week 3 Pressure and Statics of Fluids Week 4 Fluid Kinematics Week 5 Fluid Kinematics and Reynolds Transport Theorem Week 6 Mass and Energy Conservation Week 7 Bernoulli Equation; Linear and Angular Momentum Equation Week 8 Review + Mid-Term Week 9 Dimensional Analysis and Modeling Week 10 Experimental Testing and Similarity Week 11 Internal Flows Week 12 Internal Flows (2) Week 13 Applications to Chemical Engineering, Turbomachinery etc. 4
Catalog Description Applications of fluid mechanics in chemical engineering. Fluid properties; energy equations and applications in process systems; flow in pipes and channels, around submerged objects. Laminar and turbulent flow, flow measurements. 5