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Paper
Title

STUDYING THE EFFECT OF EQUATION OF STATE AND TURBULENCE MODELING ON NUMERICAL SIMULATION OF A SUPERSONIC EJECTOR

هفدهمین کنفرانس دینامیک شاره ها
Year: 1396
COI: CFD17_208
Language: EnglishView: 323
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Authors

FARID aligolzadeh - MSc student, School of mechanical engineering, Sharif University of Technology
ali hakkaki-fard - Assistant professor, School of mechanical engineering, Sharif University of Technology

Abstract:

Due to an increasing need for refrigeration systems and consequently increasing in electricity usage and greenhouse gases production, using ejector refrigeration systems would be a suitable substitution for conventional cooling systems. Main defect of ejector refrigeration systems is their low coefficient of performance. The key component to improve the cycle performance is the ejector. Prerequisite of improving ejector performance is an accurate CFD simulation for predicting entrainment ratio. In this paper, a two dimensional, axisymmetric, steady state, compressible flow CFD simulation of a supersonic ejector is presented. CFD results are validated with experimental data. Furthermore, the influences of applying different types of equations of state and turbulence models are studied. It is shown that applying National Institute of Standards and Technology (NIST) property tables and k-ε realizable turbulence model leads to a precise result; however, applying ideal gas equation of state produces about 24% relative error.

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This Paper COI Code is CFD17_208. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/691100/

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aligolzadeh, FARID and hakkaki-fard, ali,1396,STUDYING THE EFFECT OF EQUATION OF STATE AND TURBULENCE MODELING ON NUMERICAL SIMULATION OF A SUPERSONIC EJECTOR,17th Fluid Dynamics Conference,Shahrud,https://civilica.com/doc/691100

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Type of center: دانشگاه دولتی
Paper count: 14,809
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