Environmental Fluid Mechanics I: Mass Transfer and Diffusion

Environmental Fluid Mechanics I: Mass Transfer and Diffusion
Pflichtkurs für VR II, Schwerpunkt “Umweltfluidmechanik Grundlagen”
1V/1Ü (3 ECTS) im 7. Studiensemester
WS 2008/09
Dozenten
Assistant
Vorlesung
Prof. G.H. Jirka, Ph.D., Dr.-Ing. Tobias Bleninger
Dong-Guan Seol, Ph.D.
Blockkurs (22. Okt.-17. Dez.)
Montag 11.30-13.00 Uhr im Hörsaal 62, Gebäude 10.81 und
Montag 15.45-17.15 Uhr im Hörsaal 59, Gebäude 10.81
nach Vereinbarung mit Dong-Guan Seol, Ph.D.
Zi. 101, 10.81, [email protected], Tel. 0721/608-2582
Sprechstunden
Die Vorlesungen und Übungen werden in englischer Sprache gehalten; Sprechstunden werden
auf Deutsch oder Englisch angeboten.
Lecture
Date
Contents
Homework
0
20.10.
Einführung: course outline
1
27.10.
Introduction: Examples of transport problems.
2
27.10.
Fick’s Law and the Diffusion Equation:
Derivation of the diffusion equation using
Fick’s Law.
3
10.11.
Point Source Solution: Similarity method solution
and comparison with Gaussian distribution.
4
10.11.
Advective Diffusion Equation: Derivation of the
advective-diffusion (AD) equation using coordinate
transformation.
Ü1
17.11.
Übung: Diffusion. How to solve diffusion
problems using known solutions and superposition.
5
17.11.
Turbulence: an introduction to turbulence and
1st in 2nd out
how to describe turbulence properties mathematically.
6
24.11.
Turbulent Diffusion: Reynolds averaging, the turbulent
AD equation, and turbulent mixing coefficients.
7
24.11.
Longitudinal Dispersion: description of Taylor dispersion,
derivation of the dispersion coefficient, analytical and
numerical solutions.
8
1.12.
Chemical, Physical and Biological Transformation: transformation processes, first- and
second-order models, incorporation in the AD
equation.
Ü2
01.12.
Übung: Dispersion. Engineering example and
laboratory demonstration of Taylor dispersion in
a pipe.
1st set out
2nd in 3rd out
Lecture
Date
Contents
Homework
9
8.12.
Mixing at Interfaces: Treatment of the air-water
interface and aeration models.
10
8.12.
Mixing at Interfaces: Treatment of the sedimentwater interface.
11
15.12.
Atmospheric Mixing: Turbulence in the
atmospheric boundary layer and related transport
models.
12
15.12.
Water Quality Modeling: examples of water quality
Numerical models, model stability criteria.
Ü3
xx.12.
Übung: Review. Course review and presentation of 3rd set in
sample exam problems.
Sample Problems
Three sets of sample problems will be distributed during the course. Two weeks will be given
to work the solutions to each set of problems. Problem sets turned in by the given due date
will be corrected and returned in a timely manner. Working the problems is highly
recommended. Students with a homework grade of 50% or more will receive extra credit for
the exam.
Exams
Students studying under the Civil Engineering curriculum can choose one of three exam
possibilities:
1. Take the 120 min. written exam in “Umweltfluidmechanik Grundlagen” im
Schwerpunkt “Umweltfluidmechanik”. Exam dates will be posted on the exam
website (www.wp.uni-karlsruhe.de).
2. Organize an oral or written exam together with other courses as an
“Ergänzungsfachprüfung”. Exam dates and format must be scheduled with the
respective professors.
3. Take a 30 min oral exam over just this course as a “Zusatzfach”. The exam date must
be scheduled with the lecturers.
External Resources
The following web-based resources are also recommended:
http://www.ifh.uni-karlsruhe.de/lehre/envflu_I/envflu_I.htm