EVALUATING DES AND DDES MODELS FOR WIND FLOW OVER BUILDING AND COMPARING WITH TRADITIONAL TURBULENCE MODELS

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JADIDI AMIR MOHAMMAD; HEIDARINEJAD GHASSEM

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Journal: Modares Mechanical Engineering Year:2014 | Volume:13 | Issue:14 Page(s): 81-93

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Information Journal Paper

Title

EVALUATING DES AND DDES MODELS FOR WIND FLOW OVER BUILDING AND COMPARING WITH TRADITIONAL TURBULENCE MODELS

Author(s)

JADIDI AMIR MOHAMMAD | HEIDARINEJAD GHASSEM | Issue Writer Certificate

Keywords

WIND FLOWQ2

TURBULENT FLOW AROUND BUILDINGQ2

DES MODELQ2

RANSQ2

LES MODELSQ2

PARALLEL PROCESSINGQ2

Abstract

Turbulent WIND FLOW over buildings occurs due to the complexity like sharp corners, ground effect and different vortexes is one of the best choices to evaluate turbulence methods. DES and DDES are hybrid RANS-LES models for simulating turbulent flow which for their characteristic treat near wall as RANS and farther the wall act as LES model. Consequently computational time will decrease compared to traditional LES MODELS. In this article to evaluate DES and DDES models, turbulent incompressible flow in Re=22000 over 3D building is simulated using PARALLEL PROCESSING facilities. For verification purpose other investigators experiment results are used. Also the mentioned models are compared with classic RANS and LES MODELS, like k-e and LES-Smagorinsky to depict their performance. Our results illustrate DES MODEL with fine grid has good precision for simulating turbulent incompressible WIND FLOW over building and decline of 26 percentage of computational time compared to LES-Smagorinsky model.

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APA: Copy

JADIDI, AMIR MOHAMMAD, & HEIDARINEJAD, GHASSEM. (2014). EVALUATING DES AND DDES MODELS FOR WIND FLOW OVER BUILDING AND COMPARING WITH TRADITIONAL TURBULENCE MODELS. MODARES MECHANICAL ENGINEERING, 13(14), 81-93. SID. https://sid.ir/paper/178696/en

Vancouver: Copy

JADIDI AMIR MOHAMMAD, HEIDARINEJAD GHASSEM. EVALUATING DES AND DDES MODELS FOR WIND FLOW OVER BUILDING AND COMPARING WITH TRADITIONAL TURBULENCE MODELS. MODARES MECHANICAL ENGINEERING[Internet]. 2014;13(14):81-93. Available from: https://sid.ir/paper/178696/en

IEEE: Copy

AMIR MOHAMMAD JADIDI, and GHASSEM HEIDARINEJAD, “EVALUATING DES AND DDES MODELS FOR WIND FLOW OVER BUILDING AND COMPARING WITH TRADITIONAL TURBULENCE MODELS,” MODARES MECHANICAL ENGINEERING, vol. 13, no. 14, pp. 81–93, 2014, [Online]. Available: https://sid.ir/paper/178696/en

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