Heat transfer augmentation in an oscillating flow
(2002) ASME International Mechanical Engineering Congress and Exposition, 2002 372(2). p.89-93- Abstract
- For combustors a heat transfer augmentation of two to five times higher than expected has been reported. Experiments, where the temperature profile in the tail pipe of the pulse combustor has been measured, give no indication why the heat transfer should be augmented. The objective is to study the heat transfer of an oscillating flow between two parallel plates. A set of governing equations is formulated from first principles. Analytical solutions can then be obtained for both the velocity and temperature fields for the special flow considered. The heat conduction vector can so be determined and the heat transfer at the plates over one cycle is found to be dependent of the frequency of the oscillations as well as the phase difference... (More)
- For combustors a heat transfer augmentation of two to five times higher than expected has been reported. Experiments, where the temperature profile in the tail pipe of the pulse combustor has been measured, give no indication why the heat transfer should be augmented. The objective is to study the heat transfer of an oscillating flow between two parallel plates. A set of governing equations is formulated from first principles. Analytical solutions can then be obtained for both the velocity and temperature fields for the special flow considered. The heat conduction vector can so be determined and the heat transfer at the plates over one cycle is found to be dependent of the frequency of the oscillations as well as the phase difference between the pressure and temperature oscillations. From the analysis it is found that for certain intervals of the phase difference and the frequency of the oscillations an augmented heat transfer can be found. This means that an augmented heating (or cooling) process can be arranged in a steady flow by superimposing oscillations. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/610657
- author
- Holst, Anders LU ; Lundgren, E. and Marksten, U.
- organization
- publishing date
- 2002
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Oscillating flow, Phase difference
- host publication
- American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
- volume
- 372
- issue
- 2
- pages
- 89 - 93
- publisher
- American Society Of Mechanical Engineers (ASME)
- conference name
- ASME International Mechanical Engineering Congress and Exposition, 2002
- conference location
- New Orleans, LA, United States
- conference dates
- 2002-11-17 - 2002-11-22
- external identifiers
-
- other:CODEN: ASMHD8
- ISSN
- 0272-5673
- language
- English
- LU publication?
- yes
- id
- 3bd572b6-d2a1-4c98-8ac6-6a472ee098bf (old id 610657)
- date added to LUP
- 2016-04-01 16:51:02
- date last changed
- 2018-11-21 20:44:41
@inproceedings{3bd572b6-d2a1-4c98-8ac6-6a472ee098bf,
abstract = {{For combustors a heat transfer augmentation of two to five times higher than expected has been reported. Experiments, where the temperature profile in the tail pipe of the pulse combustor has been measured, give no indication why the heat transfer should be augmented. The objective is to study the heat transfer of an oscillating flow between two parallel plates. A set of governing equations is formulated from first principles. Analytical solutions can then be obtained for both the velocity and temperature fields for the special flow considered. The heat conduction vector can so be determined and the heat transfer at the plates over one cycle is found to be dependent of the frequency of the oscillations as well as the phase difference between the pressure and temperature oscillations. From the analysis it is found that for certain intervals of the phase difference and the frequency of the oscillations an augmented heat transfer can be found. This means that an augmented heating (or cooling) process can be arranged in a steady flow by superimposing oscillations.}},
author = {{Holst, Anders and Lundgren, E. and Marksten, U.}},
booktitle = {{American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD}},
issn = {{0272-5673}},
keywords = {{Oscillating flow; Phase difference}},
language = {{eng}},
number = {{2}},
pages = {{89--93}},
publisher = {{American Society Of Mechanical Engineers (ASME)}},
title = {{Heat transfer augmentation in an oscillating flow}},
volume = {{372}},
year = {{2002}},
}