COMPARATIVE INVESTIGATION IN A TURBINE BLADE PASSAGE FLOWS WITH SEVERAL DIFFERENT TURBULENCE MODELS

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EBRAHIMI MAHMOOD; ROOZBAHANI MOHAMMAD HOSSEIN

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Journal: INTERNATIONAL JOURNAL OF ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY Year:2011 | Volume:4 | Issue:4 (16) Page(s): 39-45

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Title

COMPARATIVE INVESTIGATION IN A TURBINE BLADE PASSAGE FLOWS WITH SEVERAL DIFFERENT TURBULENCE MODELS

Author(s)

EBRAHIMI MAHMOOD | ROOZBAHANI MOHAMMAD HOSSEIN | Issue Writer Certificate

Keywords

FINITE VOLUME

K-ε MODEL

K-ω SST MODEL

TURBULENCE MODEL

SPALART-ALLMARAS MODEL

STEAM TURBINE

Abstract

In the present work a two dimensional numerical investigation of steam flows in a turbine blade passage is performed. A FINITE VOLUME approach has been used and the pressure-velocity coupling is resolved using the SIMPLE algorithm.The purpose of this paper is to find that one of the used turbulent models is better for this kind of studies. A structured mesh arrangement with boundary layer mesh was adopted to map the flow domain in the blade passage. Pressure profiles around the blades for all models results are compared with the experimental data and good agreement is observed. The three models results of k-e TURBULENCE MODELs (standard, Realizable and RNG) have compared with Spalart-Allmaras and k-e SST models. Based on the results obtained, that all of these models can simulate the flow with reasonable result but the SPALART-ALLMARAS MODEL and REALIZABLE k-e model is better than other models with significant in shock capturing. Based on result, Spalart-Allmaras and k-ω SST models showed a larger boundary layer on suction trailing edge than k-ε models family. Although using REALIZABLE k-εmodel leading to savings in computational cost and time.

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APA: Copy

EBRAHIMI, MAHMOOD, & ROOZBAHANI, MOHAMMAD HOSSEIN. (2011). COMPARATIVE INVESTIGATION IN A TURBINE BLADE PASSAGE FLOWS WITH SEVERAL DIFFERENT TURBULENCE MODELS. INTERNATIONAL JOURNAL OF ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY, 4(4 (16)), 39-45. SID. https://sid.ir/paper/596099/en

Vancouver: Copy

EBRAHIMI MAHMOOD, ROOZBAHANI MOHAMMAD HOSSEIN. COMPARATIVE INVESTIGATION IN A TURBINE BLADE PASSAGE FLOWS WITH SEVERAL DIFFERENT TURBULENCE MODELS. INTERNATIONAL JOURNAL OF ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY[Internet]. 2011;4(4 (16)):39-45. Available from: https://sid.ir/paper/596099/en

IEEE: Copy

MAHMOOD EBRAHIMI, and MOHAMMAD HOSSEIN ROOZBAHANI, “COMPARATIVE INVESTIGATION IN A TURBINE BLADE PASSAGE FLOWS WITH SEVERAL DIFFERENT TURBULENCE MODELS,” INTERNATIONAL JOURNAL OF ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY, vol. 4, no. 4 (16), pp. 39–45, 2011, [Online]. Available: https://sid.ir/paper/596099/en

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