INVERSE DESIGN OF 90-DEGREE BEND BETWEEN RADIAL AND AXIAL DIFFUSER OF CENTRIFUGAL COMPRESSOR

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SHUMAL MOHAMMAD; NILI AHMADABADI MAHDI; SHIRANI EBRAHIM

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Journal: Modares Mechanical Engineering Year:2015 | Volume:15 | Issue:8 Page(s): 371-378

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Title

INVERSE DESIGN OF 90-DEGREE BEND BETWEEN RADIAL AND AXIAL DIFFUSER OF CENTRIFUGAL COMPRESSOR

Author(s)

SHUMAL MOHAMMAD | NILI AHMADABADI MAHDI | SHIRANI EBRAHIM | Issue Writer Certificate

Keywords

INVERSE DESIGNQ2

90-DEGREE BENDQ2

CENTRIFUGAL COMPRESSORQ2

BALL-SPINE ALGORITHMQ2

SWIRLING VISCOUS FLOWQ2

Abstract

In this research an INVERSE DESIGN algorithm, called BALL-SPINE ALGORITHM (BSA) is developed on 90-DEGREE BEND duct between the radial and axial diffuser of CENTRIFUGAL COMPRESSOR with viscous swirling inflow to bend duct. The shape modification process integrates INVERSE DESIGN algorithm and quasi-3D analysis code. For this purpose, Ansys CFX software is used as flow solver and INVERSE DESIGN algorithm is written as code inside it. Shape modification is accomplished for viscous and inviscid flow to check the effect of viscosity on convergence rate. Also, the effect of swirl velocity in shape modification process is investigated by considering increased pressure as the target parameter. The algorithm reliability for swirling flow is verified by choosing different initial geometries. Finally, aerodynamic design of the bend duct with BSA is accomplished to reduce losses in 90-DEGREE BEND. Shape modification process is carried out by improving the current wall pressure distribution and applying it to the INVERSE DESIGN algorithm. Results show that convergence rate and stability of BSA are favorable for designing ducts with SWIRLING VISCOUS FLOW. So the pressure recovery coefficient of the 90-DEGREE BEND duct is increased 4%.

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APA: Copy

SHUMAL, MOHAMMAD, NILI AHMADABADI, MAHDI, & SHIRANI, EBRAHIM. (2015). INVERSE DESIGN OF 90-DEGREE BEND BETWEEN RADIAL AND AXIAL DIFFUSER OF CENTRIFUGAL COMPRESSOR. MODARES MECHANICAL ENGINEERING, 15(8), 371-378. SID. https://sid.ir/paper/179064/en

Vancouver: Copy

SHUMAL MOHAMMAD, NILI AHMADABADI MAHDI, SHIRANI EBRAHIM. INVERSE DESIGN OF 90-DEGREE BEND BETWEEN RADIAL AND AXIAL DIFFUSER OF CENTRIFUGAL COMPRESSOR. MODARES MECHANICAL ENGINEERING[Internet]. 2015;15(8):371-378. Available from: https://sid.ir/paper/179064/en

IEEE: Copy

MOHAMMAD SHUMAL, MAHDI NILI AHMADABADI, and EBRAHIM SHIRANI, “INVERSE DESIGN OF 90-DEGREE BEND BETWEEN RADIAL AND AXIAL DIFFUSER OF CENTRIFUGAL COMPRESSOR,” MODARES MECHANICAL ENGINEERING, vol. 15, no. 8, pp. 371–378, 2015, [Online]. Available: https://sid.ir/paper/179064/en

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