ROSE-HULMAN INSTITUTE OF TECHNOLOGY

ES202: Thermal & Fluid Systems — Spring 2006–2007

All material, except laboratory dates, is subject to change. Reading and HW assignments and exam dates will be finalized approximately one week before they appear on the schedule.

Schedule and material below the darkened row has not been finalized.

Reading and HW assignments are found in the Çengel and Turner text. Items marked with an asterisk (*) are available by clicking on the link.

 

Revised —1840 — 25 April 2007

Class

Date

Day

Reading to be Completed
Before Class

Lesson Objectives

Homework to be
Completed
After Class

 

 

 

 

Week 1 - Objectives

 

1

3-5

M

- - -

Introduction

      relation of ES201 and ES202/ES204

      thermodynamics, fluid mechanics, and heat transfer

Fluid Fundamentals (1)

      Definition of a fluid

      Conservation of mass for a differential open system (control volume):

           field variables – density, velocity, pressure

           continuity equation for an incompressible fluid

Set #1*  (Due class 3)

2

3-6

T

1-1 to 1-4;

10-1 to 10-3

Stream function notes*

Fluid Fundamentals (2)

      Flow visualization

           pathline, streakline, streamline, and timelines

      Motion of a fluid element (fluid kinematics):

           translation vs. rotation (vorticity)

           expansion/compression (dilation) vs. angular deformation

      Stream function and the velocity field

Set #2* (Due class 4)

 

 

W

 

Week 1 — ES204 Lab

 

3

3-8

R

10-4 to 10-6;

Navier-Stokes Notes*;

1-5 to 1-9

 

Fluid Fundamentals (3)

      Shear stress and viscosity

           Newtonian fluid

      Conservation of linear momentum for a differential open system (control volume):

           Navier-Stokes equation for an incompressible fluid

           common modeling assumptions

Set #3* (Due class 5)

 

 

 

 

Week 2 - Objectives

 

4

3-12

M

2-8 to 2-10

Hydrostatics (1)

      pressure variation in a stationary fluid

      scales for reporting pressure – absolute vs. gage pressure

      pressure measurement: barometers, manometers, and gages

Set #4 (Due class 6)

2-75, 2-79

5

3-13

T

11-1 to 11-2

Hydrostatics (2)

      pressure distribution on a submerged surface

      resultant force on a submerged plane surface

           magnitude, line of action, and point of application

Set #5 (Due class 7)

2-78, 2-101, 11-14

 

 

W

Chapter 7 -- Dimensional Analysis and Modeling*

Week 2 — ES202 Lab

·   Download and read Chapter 7 on Dimensional Analysis and Modeling from Essentials of Fluid Mechanics by Cimbala and Cengel BEFORE coming to lab. This is a free chapter distributed by McGraw-Hill as a supplement for the current text. Use the link at left to download the PDF file for the chapter.

·   Data for use during lab period ---- Liquid Column Breakup

·   Falling Sphere Data obtained by Fluids’R’Us testing (EXCEL Spreadsheet).

 

6

3-15

R

11-3 to 11-4

Hydrostatics (3)

      buoyancy force (Archimedes’ principle)

Set #6* (Due class 8)

 

 

 

 

Week 3 - Objectives

 

7

3-19

M

12-2

 

Bernoulli equation (1)

      origin, limitations, and physical interpretation

           static, dynamic, and stagnation pressure

           pressure variation along a streamline

      energy form vs. pressure form vs. head form

      pressure variation across streamlines, especially parallel streamlines

Set #7* (Due class 10)

12-27, 12-35

 

Think about Concept Questions 12-11C to 12-24C

8

3-20

T

12-3

Bernoulli equation (2)

      examples: Pitot-static tube, flow in a nozzle or venturi, siphons

Set #8  (Due class 11)

12-38/39, 12-45, 12-46

 

 

W

 

Week 3 — ES202 Lab — Optional Q&A for exam material (See instructor)

 

9

3-22

R

 

Exam I  --- Classes 1-6  (Ground rules)

 

 

 

 

 

Week 4 & 5 - Objectives

 

10

3-26

M

12-4

ES201 Energy notes

Mechanical Energy Balance (1)

      Conservation of energy (CoE) and the Mechanical Energy Balance (MEB)

      One-inlet/one-outlet steady-state system

Set #10 (Due class 12)

12-59, 12-67

11

3-27

T

12-1

Mechanical Energy Balance (2)

      Pump/Turbine Efficiency

Set #11 (Due class 13)

12-83/85, 12-74

 

 

W

 

                                                                Week 4 — ES204 Lab

 

12

3-29

R

14-1 to 14-3

Internal Flow (1)

      inlet region:

           developing flow and viscous boundary layer

           entrance length

      Reynolds number and the flow regimes: laminar, transition, and turbulent

      laminar flow in circular and non-circular ducts

Set #12 (Due class 14)

12-55/56

13

4-2

M

14-4 and 14-5

Internal Flow (2)

      turbulent flow in circular and non-circular ducts

      predicting major and minor head losses

      pipe flow: major losses (friction losses in straight pipes)

Set #13

14-37, 14-38, 14-45

14

4-3

T

14-6

Internal Flow (3)

      pipe flow: minor losses (fittings, inlets, outlets)

 

 

 

 

 

Week 5 — ES202 Lab

 

15

4-5

R

-----

Internal Flow (4)

      applications

Set #15 (Due class 17)

14-69, 14-87

 

 

 

 

Spring Break

 

16

4-16

M

5-4

ES201 energy notes

Steady-flow devices (1):  Characteristics of

      Turbines, pumps, compressors, fans, blowers

      Nozzles, diffusers, throttling valves

      Heat exchangers

Set #16 (Due class 18)

14-79, 5-66, and 5-85

For  5-66 and 5-85 assume air is ideal gas with constant room-temperature specific heats (just like we did in ES201) AND add a part (c) calculate the entropy generation rate.

17

4-17

T

3-1 to 3-4

Pure substance properties (1)

      State postulate of a simple, compressible substance
     P-v-T surface and its projections

Set #17 (Due class 20)

5-121 and 5-132 (where necessary treat water as an incompressible substance and air as an ideal gas with constant specific heats)

 

 

W

 

Week 6 — ES204

 

18

4-19

R

 

Fluid mechanics Q & A

 

19

4-23

M

 

Exam II – Classes 7-15

 

20

4-24

T

3-5

Pure substance properties (2)

TBA ?????

 

4-25

W

 

Week 7 — ES202 Lab — Property Lookup Lab

 

21

4-26

R

 

Pure substance properties (3)

      Problem solving using real substance property tables

5-11, 5-21, 5-107 (Due class 23)

22

4-30

M

3-6, 3-7, 3-9, 3-10;
7-7, 7-9

Pure substance (4)

      compressibility factor Z and the generalized Z-chart

      specific heats

      ideal gas model

           use of average specific heat values

           use of ideal gas tables

5-43, 5-213, 7-67 (Due class 24)

23

5-1

T

3-11, 7-8;
7-4 to 7-6, 7-12

      incompressible substance

Isentropic processes (1)

      Representation on T-s diagrams
     Isentropic efficiency for steady-state devices

7-75, 7-97, 7-102 (Due class 25)

 

5-2

W

 

Week 8 — ES202 Lab

 

 

 

 

 

=======SCHEDULE SET TO THIS POINT=======

 

24

5-3

R

8-1, 8-2, 8-7 and

Cycle material in ES201 Notes

Thermodynamics Cycles (1)

      Power Cycles (Heat Engines)

           Carnot Cycle

           Model for a gas turbine --- Brayton Cycle

 

25

5-7

M

8-9 to 8-11

Thermodynamic Cycles (2)

           Model for a steam power plant --- Rankine Cycle

 

26

5-8

T

8-14 to 8-18

Thermodynamic Cycles (3)

      Refrigeration/Heat-Pump Cycles

           Reversed Carnot Cycle

           Model for a home air conditioner or heat pump --- Mechanical vapor-compression cycle 

 

 

 

W

 

Week 9 — ES204 Lab

 

27

5-10

R

15.1 to 15.4, 15-6

External Flow (1)

      Drag vs. Lift

      Drag force components: pressure drag vs. shear (friction) drag

           Drag coefficient – determined empirically

      Pressure drag

           difference between slender and blunt bodies (streamlining)

           flow separation and its dependence on Reynolds number

 

28

5-16

M

 

Exam III – Classes 16 – 26

 

29

5-17

T

15-5

External flow (2)

      Shear (friction) drag

           development of boundary layer along a surface

                special case: parallel flow over a flat plate

           skin friction coefficient: local versus average.

 

 

 

W

 

Week 10 — ES204 Lab

 

30

5-19

R

15-7

External flow (3)

      Lift – Origin of lift

        Lift coefficient

        Stall as a direct consequence of flow separation

 

 

5-25

W

 

Final Exam      6 pm — 10 pm