Flow Characteristics of Gas Flow through the Orifice Attached to a Pipe End

Flow Characteristics of Gas Flow through the Orifice Attached to a Pipe End

This paper describes the mass flow characteristics of free discharge through an orifice. Experiments are carried out to clarify the flow difference between the conventional pipe orifice and the pipe end orifice presented. The results are plotted by introducing λ which is the ratio of real flow rate...

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Veröffentlicht in:Nihon Kikai Gakkai rombunshuu. B hen 1991/02/25, Vol.57(534), pp.470-472
1. Verfasser: TORIZUMI, Yasuhiro
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Sprache:eng ; jpn
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compressible flow
Flow Meter
flow of gases
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container_title Nihon Kikai Gakkai rombunshuu. B hen
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creator TORIZUMI, Yasuhiro
description This paper describes the mass flow characteristics of free discharge through an orifice. Experiments are carried out to clarify the flow difference between the conventional pipe orifice and the pipe end orifice presented. The results are plotted by introducing λ which is the ratio of real flow rate to the flow determined by using the ASME or JIS regulated value of the pipe orifice into the pipe end orifice case. The experimental results show that the conventional regulated relations of the pipe orifice can be applied correspondingly to the case of this pipe end orifice in subsonic flow regime. The effect of the down-stream pipe length on the flow measurement error, and the effect of an obstacle placed at the free discharge region of the jet on the error are also examined and discussed.
doi_str_mv 10.1299/kikaib.57.470
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ispartof Transactions of the Japan Society of Mechanical Engineers Series B, 1991/02/25, Vol.57(534), pp.470-472
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1884-8346
language eng ; jpn
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source J-STAGE Free; EZB-FREE-00999 freely available EZB journals
subjects compressible flow
Flow Meter
flow of gases
title Flow Characteristics of Gas Flow through the Orifice Attached to a Pipe End
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