Experimental and CFD Study on the Mass Flow-rate Characteristics of Gas through Restrictors in Aerostatic Bearing
碩士 === 國立雲林科技大學 === 機械工程系碩士班 === 92 === The purpose of this study is to study the mass flow-rate characteristics through orifice-type restrictor with different diameter in aerostatic bearings by experimental and CFD approach. In the conventional design of gas-lubricated aerostatic bearings, the mass...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | zh-TW |
Published: |
2004
|
Online Access: | http://ndltd.ncl.edu.tw/handle/42798258837970984627 |
id |
ndltd-TW-092YUNT5489045 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-TW-092YUNT54890452015-10-13T13:08:17Z http://ndltd.ncl.edu.tw/handle/42798258837970984627 Experimental and CFD Study on the Mass Flow-rate Characteristics of Gas through Restrictors in Aerostatic Bearing 氣體軸承節流孔口之氣體質流量CFD分析與實驗研究 Jia-Feng Yang 楊加風 碩士 國立雲林科技大學 機械工程系碩士班 92 The purpose of this study is to study the mass flow-rate characteristics through orifice-type restrictor with different diameter in aerostatic bearings by experimental and CFD approach. In the conventional design of gas-lubricated aerostatic bearings, the mass flow-rates of gas through different types of restrictors are all derived from a well-known mathematical model, which is originally developed to describe the mass flow-rate property through an ideal nozzle. It is reasonable to doubt if there is any difference between the properties of mass flow-rate through different restrictors in aerostatic bearings and that through a nozzle. In 1989, ISO6358 is defined as a standard to specify the method to determine the mass flow-rate for pneumatic components. It uses the “Sonic conductance C” and “Critical pressure ratio b” to describe the non-linear mass flow-rate. In this study, therefore, we plan to conduct a series of CFD simulations together with experiments according to ISO 6358. We successfully find the conductive value and the critical pressure ratio for orifice-type aerostatic bearing restrictor with different diameters. Jyh-Chyang Renn 任志強 2004 學位論文 ; thesis 81 zh-TW |
collection |
NDLTD |
language |
zh-TW |
format |
Others
|
sources |
NDLTD |
description |
碩士 === 國立雲林科技大學 === 機械工程系碩士班 === 92 === The purpose of this study is to study the mass flow-rate characteristics through orifice-type restrictor with different diameter in aerostatic bearings by experimental and CFD approach. In the conventional design of gas-lubricated aerostatic bearings, the mass flow-rates of gas through different types of restrictors are all derived from a well-known mathematical model, which is originally developed to describe the mass flow-rate property through an ideal nozzle. It is reasonable to doubt if there is any difference between the properties of mass flow-rate through different restrictors in aerostatic bearings and that through a nozzle. In 1989, ISO6358 is defined as a standard to specify the method to determine the mass flow-rate for pneumatic components. It uses the “Sonic conductance C” and “Critical pressure ratio b” to describe the non-linear mass flow-rate. In this study, therefore, we plan to conduct a series of CFD simulations together with experiments according to ISO 6358. We successfully find the conductive value and the critical pressure ratio for orifice-type aerostatic bearing restrictor with different diameters.
|
author2 |
Jyh-Chyang Renn |
author_facet |
Jyh-Chyang Renn Jia-Feng Yang 楊加風 |
author |
Jia-Feng Yang 楊加風 |
spellingShingle |
Jia-Feng Yang 楊加風 Experimental and CFD Study on the Mass Flow-rate Characteristics of Gas through Restrictors in Aerostatic Bearing |
author_sort |
Jia-Feng Yang |
title |
Experimental and CFD Study on the Mass Flow-rate Characteristics of Gas through Restrictors in Aerostatic Bearing |
title_short |
Experimental and CFD Study on the Mass Flow-rate Characteristics of Gas through Restrictors in Aerostatic Bearing |
title_full |
Experimental and CFD Study on the Mass Flow-rate Characteristics of Gas through Restrictors in Aerostatic Bearing |
title_fullStr |
Experimental and CFD Study on the Mass Flow-rate Characteristics of Gas through Restrictors in Aerostatic Bearing |
title_full_unstemmed |
Experimental and CFD Study on the Mass Flow-rate Characteristics of Gas through Restrictors in Aerostatic Bearing |
title_sort |
experimental and cfd study on the mass flow-rate characteristics of gas through restrictors in aerostatic bearing |
publishDate |
2004 |
url |
http://ndltd.ncl.edu.tw/handle/42798258837970984627 |
work_keys_str_mv |
AT jiafengyang experimentalandcfdstudyonthemassflowratecharacteristicsofgasthroughrestrictorsinaerostaticbearing AT yángjiāfēng experimentalandcfdstudyonthemassflowratecharacteristicsofgasthroughrestrictorsinaerostaticbearing AT jiafengyang qìtǐzhóuchéngjiéliúkǒngkǒuzhīqìtǐzhìliúliàngcfdfēnxīyǔshíyànyánjiū AT yángjiāfēng qìtǐzhóuchéngjiéliúkǒngkǒuzhīqìtǐzhìliúliàngcfdfēnxīyǔshíyànyánjiū |
_version_ |
1717732634213220352 |