Coursecode: wb1420
Coursename: Multiphase flow and Heat Transfer
DUT creditpoints: 2
ECTS creditpoints: 3 |
Faculty
of Mechanical Engineering and Marine Technology |
Lecturer(s):
prof. Hunt. |
Tel.: 015-2782891 |
Catalog
data:
Fluid mechanics, Heat Transfer, Twophase flow, Multiphase flow, modelling of gas/liquid
flow, flow patterns, boiling, fluid/particle flow, bubbles. |
Courseyear:
3, 4
Semester: 0/0/0/2/2
Hours p/w: 2
Other hours: 2
Assessment: Written
Assessm.period(s): 5, 6
(see academic calendar) |
Prerequisites:
wb1220, wb1320 |
Follow
up: st453 |
Detailed
description of topics:
Basic equations for Newtonian fluids: Continuity
equation, Navier-Stokes equations, Energy equation, dimensionless numbers for a one-phase
system
Two-phase gas/liquid flow: surface tension,
instabilities, slip and phase hold-up, superficial- and actual velocities, flow patterns
in horizontal- and vertical tubes
Modelling of twophase flow: basic equations for the
two-fluid model, closing relations, dimensionless numbers for multiphase systems
One-dimensional modelling of gas/liquid flow:
homogeneous flow, Lockhart-Martinelli correlation, dispersed bubble flow, stratified flow,
annular(-dispersed) flow, intermittent flow, closing relations for 1D, flow pattern
dependent, models
Angle dependent flow-pattern diagram for gas/liquid
flow: stratified/non-stratified transition, stratified-smooth/stratified-wavy transition,
conditions for annular(-mist) flow, conditions for bubble flow, intermittent flow pattern,
applications
Dispersed gas/liquid flow: bubble growth and -size,
droplet growth and -size, terminal velocities of bubbles and drops in stagnant fluid,
bubbles in turbulent flow-field, drops in turbulent flow-field
Heat transfer at boiling processes: onset of boiling,
nucleate boiling, critical heatflux, film-boiling, pool-boiling
Isothermal fluid/particle flows: dimensionless
numbers, beginning of sediment transport, flow through fixed beds, particulate
fluidization, aggregative fluidization.
|
Course
material:
R.V.A. Oliemans, Meerfasenstroming en
Warmteoverdracht, delen I en II; Collegedictaat faculteit der Werktuigbouwkunde en
Maritieme Techniek, TU-Delft, 1995. |
References
from literature:
G. Hetsroni (ed.), "Handbook of Multiphase
Systems", Hemisphere, New York, 1982, ISBN 0-07-028460-1
G.B. Wallis, "One-Dimensional Two-Phase
Flow", McGraw Hill, New York, 1969.
P.B. Whalley, "Boiling, Condensation and
Gas/Liquid Flow", Clarendon Press, Oxford (1987).
|
Remarks
(specific information about assesment, entry requirements, etc.):
This course will be examined in June and August
each year. |
Goals:
This course is designed to describe isothermal
gas/liquid flow and particle/fluid flow and heat transfer at boiling processes.
Furthermore it provides a concise summary of steady two-phase flow methods that are
currently considered most reliable for application in process- and upstream oil/gas
industry. |
Computer
use:
No computers are used. |
Laboratory
project(s):
No practical work has to be done. |
Design
content:
The course provides methods for the design of
two-phase processes equipment. |
Percentage
of design: 25 % |