Under-Expanded Gaseous Flow at a Straight Micro-Tube Exit
(2014) In Journal of Fluids Engineering 136(8).- Abstract
- This paper focuses on under-expanded gaseous flow at a straight micro-tube exit. The pitot total pressure of gas flow (jet) in the downstream region from a straight micro-tube exit was measured by a total pressure pitot tube to accumulate data for validation of numerical results. A micro-tube of 495 mu m in diameter and 56.3 mm in length and a total pressure pitot tube of 100 mu m in outer diameter were used. The pitot total pressure was measured at intervals of 0.1 mm in both the flow and radial directions. The measurement was done for the mass flow rates of 9.71 x 10(-5) kg/s and 1.46 x 10(-4) kg/s. The data were accumulated for validation of the numerical results to reveal the characteristics of the under-expanded gas flow at the exit... (More)
- This paper focuses on under-expanded gaseous flow at a straight micro-tube exit. The pitot total pressure of gas flow (jet) in the downstream region from a straight micro-tube exit was measured by a total pressure pitot tube to accumulate data for validation of numerical results. A micro-tube of 495 mu m in diameter and 56.3 mm in length and a total pressure pitot tube of 100 mu m in outer diameter were used. The pitot total pressure was measured at intervals of 0.1 mm in both the flow and radial directions. The measurement was done for the mass flow rates of 9.71 x 10(-5) kg/s and 1.46 x 10(-4) kg/s. The data were accumulated for validation of the numerical results to reveal the characteristics of the under-expanded gas flow at the exit of a micro-tube. Comparisons were conducted for numerical results of corresponding cases and a slight discrepancy can be seen between numerical and experimentally measured pitot total pressures. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4602608
- author
- Yoshimaru, Takahiro ; Asako, Yutaka and Yamada, Toru LU
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- micro-tube, gaseous flow, under-expanded flow, pitot total pressure
- in
- Journal of Fluids Engineering
- volume
- 136
- issue
- 8
- article number
- 081204
- publisher
- American Society Of Mechanical Engineers (ASME)
- external identifiers
-
- wos:000338507900007
- scopus:84901044251
- ISSN
- 0098-2202
- DOI
- 10.1115/1.4026958
- language
- English
- LU publication?
- yes
- id
- f3fd653a-b183-40a1-91dc-7df12fe4b0a7 (old id 4602608)
- date added to LUP
- 2016-04-01 14:16:52
- date last changed
- 2022-03-14 05:03:42
@article{f3fd653a-b183-40a1-91dc-7df12fe4b0a7,
abstract = {{This paper focuses on under-expanded gaseous flow at a straight micro-tube exit. The pitot total pressure of gas flow (jet) in the downstream region from a straight micro-tube exit was measured by a total pressure pitot tube to accumulate data for validation of numerical results. A micro-tube of 495 mu m in diameter and 56.3 mm in length and a total pressure pitot tube of 100 mu m in outer diameter were used. The pitot total pressure was measured at intervals of 0.1 mm in both the flow and radial directions. The measurement was done for the mass flow rates of 9.71 x 10(-5) kg/s and 1.46 x 10(-4) kg/s. The data were accumulated for validation of the numerical results to reveal the characteristics of the under-expanded gas flow at the exit of a micro-tube. Comparisons were conducted for numerical results of corresponding cases and a slight discrepancy can be seen between numerical and experimentally measured pitot total pressures.}},
author = {{Yoshimaru, Takahiro and Asako, Yutaka and Yamada, Toru}},
issn = {{0098-2202}},
keywords = {{micro-tube; gaseous flow; under-expanded flow; pitot total pressure}},
language = {{eng}},
number = {{8}},
publisher = {{American Society Of Mechanical Engineers (ASME)}},
series = {{Journal of Fluids Engineering}},
title = {{Under-Expanded Gaseous Flow at a Straight Micro-Tube Exit}},
url = {{http://dx.doi.org/10.1115/1.4026958}},
doi = {{10.1115/1.4026958}},
volume = {{136}},
year = {{2014}},
}