MEC2404 – Fluid MechanicsCHE2161 – Fluid Mechanics

Lecturer

• Kenny Tan Boon Thong

• Room 5-4-42.

• tan.boon.thong@monash.edu

• Office : 46246 (Internal) or 03-55146246

• H/P : 012-6552445

Common Activity

• Lectures–Monday 10am in Audi 1–Tuesday 2pm in Audi 1–Wednesday 9am in Audi 1

• Tutorials–Wednesday 2-4pm in Audi 1

Labs/ Practice Class

• Monday 3pm, Thursday 3pm, Friday 9am and Friday 3pm

• Week 1,3 and 5 (3 hours)– Laboratories in Elab 5310 (Fluid Mechanics)– Remember to wear closed shoes. No slippers!!– Cameras are allowed and recommended.– Handout and Assessment details are available on Moodle

• Week 2,4,6-12 (1 hour)– In Room 9305 except Friday 3pm in 9304.

Schedule

• Please refer to detail schedule in unit guide.

• Includes– Lectures and corresponding section in text

book.– Topic for tutorial discussion and practice class– Class Text (x2)– Laboratory Session and due date for reports.

(x3 Lab Reports)

Week 1 3 and 5 Labs

• Week 1, 3, 5 are Laboratories• Week 1 & 3 & 5

– Impact of a Jet on a Stationary Plate– Flow Measurement– Friction Flow in Pipes (Low and High Flow Rates)

• 3-4 in a group for labs, 1 report per group per lab exercise.• Report due after relevant material covered in lectures and tutorials.

Please see schedule in unit guide.• Each report contributes 4% to overall assessment. (12% Total)

• Observation of performance in lab in Week 1,3 and 5 contributes

4%. (1% each for each experiment, Friction flow in pipes has two parts)

Tutorials vs Practice Class vs Problem Sets

• Tutorials– Weekly in Audi 1 2-4pm.– Only Lecturer present.– Will attempt mainly pass year problems to demonstrate the level

of complexity.

• Practice Class– Week 2,4,6-12. 1 hour in your allocated session.– Work in groups of 4 to solve 1 or 2 selected problems.– Intended to help you get started at working through problems.– Lecturer and two tutors will be present to assist but not do the

problems.– Submit at the end of the class to earn E Points. Total of 9 E

Points. What are E Points will be discussed later.

Tutorials vs Practice Class vs Problem Sets

• Problem Sets

– Mainly problems from text book (Please do buy the text book, older versions are ok).

– For the last two topics, the questions are from past year final exams.

– Work through on your own. 1 Problem set for each week that have no labs.

– Please attempt the problems first before watching a video recording of me doing the problems.

Test

• Introduced in 2013.

• Week 6 and Week 11. (2 x 7%)

• 1 hour close book test. (Some extra time usually provided)

• Questions with similar depth and complexity as in final exam.

Final Exam

• 70%, 3 hours, close book.

• Hurdle >=45% in Final Exam, >=45% in coursework, overall >= 50% to pass the unit.

Results from S2 2013

Grade CHE2161 MEC2404

HD 20=17% 14=12%

D 24=21% 26=22%

C 36=31% 29=25%

P 18=15% 27=23%

N 19=16% 22=18%

• Most failures because Exam <45%. I try and help those who are near.

• Last year exam was less challenging than previous year. Be prepared for worst.

What happens if you are close to the next grade ?

• Example, 42-44 in final exam or overall 47-49, 58-59, 69, 79 etc.

• E Points (EP) will help– Short of hurdle and N to P, 3EP to 1% or 1

mark.– Short of a C, 4EP to 1%– Short of a D, 6EP to 1%– Short of a HD, 8EP to 1%

How to succeed ?

• Attend lectures even if they are boring !!

– May not catch everything that is said.

– Review after lectures, look at lecture notes.

– Lectures will be recorded.

– Read text book.

• Attend tutorials

– Attempt questions before coming to class.

– Talk to tutors and lecturers.

• Attempt problems set as part of your self study before looking at the solutions/videos.

• Produce good lab reports

Workload

• 6 contact hours each week

• Expect another 6 hours (or more) of self study.

• Pitfalls– Last minute preparation, exam timetable

issues.– Looking at solution and then say “Yeah, I can

do that….. Looks okay”.

Text Book

• Recommended Text (I recommend to buy)– Munson B.R., Young D.F. & Okiishi T.H.,

Fundamentals of Fluid Mechanics, 7th Edition.• 6th edition is okay.

• Additional References– F.M. White, Fluid Mechanics– Gerhart P.M. & Gross R.J., Fundamentals of

Fluid Mechanics

Synopsis

• From unit synopsis– This unit develops the students' physical

understanding of the bases of fluid flow and translates that into the ability to formulate and solve problems. It covers the topics of basic concepts and fluid properties, hydrostatics, control volume analysis, the Bernoulli equation, pipe flow and pumps, non-Newtonian flow, dimensional analysis, boundary layers, fluid forces in flow - lift and drag, and vehicle aerodynamics.

Learning OutcomesL01) Ability to determine relative static pressure in stationary fluids, forces on submerged surfaces and bodies, relative pressures and isobars in fluids experiencing solid body acceleration.

LO2) Ability to apply control volume analysis on fluid flow systems to ensure mass is conserved and to determine the relationship between linear momentum and forces on a system.

LO3) Apply Bernoulli’s equation along a streamline to analyze i) idealized flow systems and ii) real flow measurement devices.

LO4) Apply dimensional analysis to reduce a system that is governed by multiple parameters to a set of dimensionless groups and use these dimensionless groups to scale between model and prototype or between various pumps and use dimensionless parameters for pump selection.

LO5) Analyze laminar and turbulent boundary layers in external flows to determine boundary layer thickness, displacement thickness and skin friction drag.

LO6) Ability to predict energy losses in piping systems which contain pipes, fittings, tanks, pumps and turbines, the ability to size pipes given a particular set of constraints and ability to perform pump selection and sizing for a particular piping system.

LO7) Ability to predict the pressure drop of a general (non-newtonian) fluid flowing in a pipe and apply this to fluids that obey the power-law model.

LO8) (MEC2404 only) Comprehend the basic theory of vehicle aerodynamics and testing and be able to calculate aerodynamic lift and drag, rolling resistance, power requirements and fuel consumption in vehicle aerodynamic problems.

LO8) (CHE2161 only) Ability to classify gas liquid flow, predict energy losses from gas-liquid flows in pipes and predict volume fraction in bubble columns.

LO9) Ability to work professionally in a team to operate basic experimental fluid mechanic equipment, conduct fluid mechanics related experiments and produce a formal laboratory report.

Assessment

• Laboratory Reports 12%, In lab performance 4%– 3 lab exercises, equally weighted.– Group Report, 3-4 in a group.

• Test 14%– 1 hour test in Week 6 and 11 – 2x7% Each

• Final Exam 70%– Common across campuses.– 3 hours closed book

• To pass unit, need > 45% in internal and >45% in final exam.

Relevance to Chemical Engineering

• Chemical Engineering will inevitably involve fluids (liquids/gases)– Static and Dynamic conditions.– Forces will be involved– Piping and pumping, losses will be incurred.– Non-newtonian– Multiphase.

L01) Ability to determine relative static pressure in stationary fluids, forces on submerged surfaces and

bodies, relative pressures and isobars in fluids experiencing solid body acceleration.

LO2) Ability to apply control volume analysis on fluid flow systems to ensure mass conservation and determine the relationship between linear momentum and forces on a

system.

LO3) Apply Bernoulli’s equation along a streamline to analyze i) idealized flow systems and ii) real flow

measurement devices.

LO4) Apply dimensional analysis to reduce a system that is governed by multiple parameters to a set of dimensionless

groups and use these dimensionless groups to scale between model and prototype or between various pumps and use dimensionless parameters for pump selection.

LO5) Analyze laminar and turbulent boundary layers in external flows to determine boundary layer thickness,

displacement thickness and skin friction drag.

LO6) Ability to predict energy losses in piping systems which contain pipes, fittings, tanks, pumps and turbines,

the ability to size pipes given a particular set of constraints and ability to perform pump selection and sizing for a

particular piping system.

LO7) Ability to predict the pressure drop of a general (non-newtonian) fluid flowing in a pipe and apply this to fluids

that obey the power-law model.

LO8) (MEC2404 only) Comprehend the basic theory of vehicle aerodynamics and testing and be able to calculate

aerodynamic lift and drag, rolling resistance, power requirements and fuel consumption in vehicle aerodynamic

problems.

LO8) (CHE2161 only) Ability to classify gas liquid flow, predict energy losses from gas-liquid flows in pipes and

predict volume fraction in bubble columns.

LO9) Ability to work professionally in a team to operate basic experimental fluid mechanic equipment, conduct fluid

mechanics related experiments and produce a formal laboratory report.