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International Journal of Fluid Mechanics Research
Главный редактор: Atle Jensen (open in a new tab)
Заместитель главного редактора: Valery Oliynik (open in a new tab)
Редактор-основатель: Victor T. Grinchenko (open in a new tab)

Выходит 6 номеров в год

ISSN Печать: 2152-5102

ISSN Онлайн: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

Installation Effects of a Clamp-On Transit Time Ultrasonic Flow Meter

Том 38, Выпуск 6, 2011, pp. 489-498
DOI: 10.1615/InterJFluidMechRes.v38.i6.20
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Краткое описание

In the present era of development in the country, the measurement of flow rates through large size pipelines is very significant for effective utilization of available resources. The uncertainty in flow measurement assumes greater importance when fluid is supplied on chargeable basis. Fulfillment of stipulated requirement of upstream and downstream straight length is one of the important prerequisite to achieve the claimed uncertainty in flow measurement. The latest flow measuring technique, clamp-on type ultrasonic flow meter, is being used in many applications in view of its merit of non-intrusive technique. Many a time, the site constraints do not permit to provide straight lengths recommended by the BIS. ISO/IEC Standards, leading to error in flow measurement. In such cases International Standards do not indicate the possible extent of deviation of measured flow rate from its true value, when recommended straight lengths are not met. This paper highlights to quantify the probable errors in flow measurements with ultrasonic flow meter for various cases where adequate straight lengths are not available between the different combinations of elbows and flow measuring section of the pipe with various distances, viz. (1... 12)D. The research findings will enable to predict the expected value of true flow rate with fair uncertainty for the value of flow rate measured by flow meter which had to be installed at a non standard location, owing to site constraints. These results were established with the help of high precision test circuit with volumetric flow measurement.

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