| Unit name | Multiphase Flow |
|---|---|
| Unit code | MENG31102 |
| Credit points | 10 |
| Level of study | H/6 |
| Teaching block(s) |
Academic Year (weeks 1 - 52) |
| Unit director | Dr. Gilbertson |
| Open unit status | Not open |
| Pre-requisites | |
| Co-requisites |
None |
| School/department | Department of Mechanical Engineering |
| Faculty | Faculty of Engineering |
Fluid mechanics is about solving problems and the most difficult part is analysing the system and reducing it to a series of equations. Once this has been achieved there are a number of standard methods that can be used to solve them. In single-phase fluid mechanics problems can be solved at quite a fundamental level with a few notable exceptions such as turbulence. When two or more phases are present then problems become much more difficult to solve because of the difficulty of describing a dispersed phase, the structures that can arise in a multiphase flow, and the interactions between the different phases. This course extends the techniques of fluid mechanics to areas where fundamental understanding is poor and describes some of the methods that can be used to make difficult problems tractable and allow engineering solutions to be obtained.
At the end of the unit you should be able to achieve the following outcomes. The letters and numbers refer to the programme learning outcomes.
1. Analyse and characterise multiphase systems (A1, A2, A4, A8, B1, B2, B6, B7, C1,C5); 2. Appreciate the role of structure in multiphase flows and the role it plays in obtaining engineering solutions (A1, A8, B1, B2, C1); 3. Understand what assumptions may be made to simplify multiphase flows and when they might be employed (A1, A4, A8, B1, B2, B6, B7, B8, , C1, C2); 4. Model a wide variety of multiphase flows (A1, A2, A3, A4, A8, B1, B2, B6, B7, C1, C5); 5. Understand the limitations of the modelling of multiphase flows (A1, A4, A8, B1, B6, B7, C1); 6. Obtain answers to engineering problems involving multiphase flows (A1, A2, A3, A4, A8, B1, B2, B6, B7, B8, C1, C5).
Students will receive a one hour lecture every week for twenty weeks. A detailed syllabus and keywords are given below. During the lectures students are expected to generate their own sets of notes and are encouraged to think and ask questions. The lectures are supported by a series of example sheets and structured reading exercises, which students are strongly encouraged to complete so that they will develop relevant skills. In addition at the end of each section of the syllabus there will be a “checkpoint” question, which will be an exam-type question that students can complete and return for written feedback, should they wish to. In the Summer Term, three lecture times will be used for structured example classes.
The lecture course will be assessed by a two-hour written examination. The examination consists of four questions of which candidates should answer three. Each of the questions consists of the guided analysis or solution of an engineering problem connected with multiphase flow and will typically test learning outcomes 1-3 and 5-6, though with different emphasis in different questions. The paper will cover a variety of different areas of the syllabus and this, with the unseen nature of the examination, ensures that learning outcome 4 is met.
No one book covers all elements of the course. The following titles cover different aspects of the course.
Introduction to Particle Technology, 2nd Edition, Martin Rhodes (Wiley) 2008. ISBN: 978-0470014288, library shelf mark TP156.P3 RHO Good for the particle parts of the course, especially the more applied parts such as packed beds and fluidisation.
Two-Phase Flow and Heat Transfer, P.B. Whalley, Oxford (1996) ISBN: 978- 0198564449, library shelf mark TA357 WHA. - a shortened version of Boiling, Condensation, and Gas-Liquid Flow, P. Whalley, Clarendon (1987) ISBN: 9780198562344, library shelf mark QC304 WHA. Good for boiling, flow regimes, and many aspects of the modelling parts of the course, especially where the energy equation is required and the modelling of friction terms.
Chemical Engineering, Vol.2, J.M. Coulson & J.F. Richardson, Butterworth (1991) ISBN: 0080379567, library shelf mark TP155 COU. - particularly useful for the motion of single particles and characterisation.
Educational resources for particle technology - http://www.erpt.org/ - a variety of interesting things. Other links can be found at http://delicious.com/magilbertson, particularly under the tag “multiphase_flow”.
Full documentation, links to relevant papers,lecture notes, example sheets, checkpoint questions, solutions, links and further reading suggestions &tc for the unit may be found on the Blackboard site.
