INVESTIGATION OF ERROR RESOURCES IN THE TRANSIENT FLOW SIMULATION OF PIPELINES IN THE FREQUENCY DOMAIN USING THE TRANSFER MATRIX METHOD

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RIYAHI MOHAMMAD MEHDI; HAGHIGHI ALI

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Modares Mechanical Engineering Year:2018 | Volume:18 | Issue:2 Page(s): 10-18

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Information Journal Paper

Title

INVESTIGATION OF ERROR RESOURCES IN THE TRANSIENT FLOW SIMULATION OF PIPELINES IN THE FREQUENCY DOMAIN USING THE TRANSFER MATRIX METHOD

Author(s)

RIYAHI MOHAMMAD MEHDI | HAGHIGHI ALI | Issue Writer Certificate

Keywords

TRANSIENT FLOWSQ1

FREQUENCY DOMAINQ2

TIME DOMAINQ2

Abstract

TRANSIENT FLOWS can also be analyzed in the FREQUENCY DOMAIN in addition to the TIME DOMAIN. The FREQUENCY DOMAIN needs no discretization in time and space and this is a one of the advantages of using this domain. Due to this reason, time of computations is reduced. For the frequency analysis of TRANSIENT FLOWS, the non-linear terms of the governing equations and boundary conditions must be linearized. It causes errors in the output of the FREQUENCY DOMAIN over the exact model of the characteristics method (MOC). Understanding the effect of each non-linear terms separately in the error caused by the FREQUENCY DOMAIN leads to a greater insight into this domain and provides the basis for future activities to improve this domain. In this study, the individual effects of each non-linear terms of the steady friction and valve in the generated error in the FREQUENCY DOMAIN output are shown by using a Reservoir-Pipe-Valve (RPV) system which has been excited oscillatory. This study has demonstrated that the effect of the friction term of steady flow on the generated error in the output of FREQUENCY DOMAIN is negligible, while the nonlinear term of the valve is the main cause of the error in the FREQUENCY DOMAIN.

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APA: Copy

RIYAHI, MOHAMMAD MEHDI, & HAGHIGHI, ALI. (2018). INVESTIGATION OF ERROR RESOURCES IN THE TRANSIENT FLOW SIMULATION OF PIPELINES IN THE FREQUENCY DOMAIN USING THE TRANSFER MATRIX METHOD. MODARES MECHANICAL ENGINEERING, 18(2 ), 10-18. SID. https://sid.ir/paper/178677/en

Vancouver: Copy

RIYAHI MOHAMMAD MEHDI, HAGHIGHI ALI. INVESTIGATION OF ERROR RESOURCES IN THE TRANSIENT FLOW SIMULATION OF PIPELINES IN THE FREQUENCY DOMAIN USING THE TRANSFER MATRIX METHOD. MODARES MECHANICAL ENGINEERING[Internet]. 2018;18(2 ):10-18. Available from: https://sid.ir/paper/178677/en

IEEE: Copy

MOHAMMAD MEHDI RIYAHI, and ALI HAGHIGHI, “INVESTIGATION OF ERROR RESOURCES IN THE TRANSIENT FLOW SIMULATION OF PIPELINES IN THE FREQUENCY DOMAIN USING THE TRANSFER MATRIX METHOD,” MODARES MECHANICAL ENGINEERING, vol. 18, no. 2 , pp. 10–18, 2018, [Online]. Available: https://sid.ir/paper/178677/en

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