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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Greenhouse turbulence flow numerical simulation
Year:
2000
Source of publication :
Acta Horticulturae
Authors :
ארבל, אברהם
;
.
שקליאר, אלכסנדר
;
.
Volume :
534
Co-Authors:
Shklyar, A., Institute of Agricultural Engineering, Agricultural Research Organization, P.O. Box 6, Bet-Dagan 50250, Israel
Arbel, A., Institute of Agricultural Engineering, Agricultural Research Organization, P.O. Box 6, Bet-Dagan 50250, Israel
Facilitators :
From page:
49
To page:
55
(
Total pages:
7
)
Abstract:
The purpose of the present paper is to develop a two-dimensional numerical model for predicting internal and external flow patterns and their interaction in a modern greenhouse. Large dimensions usually characterize the greenhouse; in effect, a large Reynolds number. The turbulence flow in the domain is described by the Reynolds equations. The Reynolds stresses were modeled according to the eddy viscosity concept, which introduces the turbulent viscosity by the k-epsilon high Reynolds model. An iterative numerical procedure in general curvilinear coordinates systems was applied to the present physical system. The hybrid central/upwind differences were used for the convective terms and a central difference for the diffusion terms. The grid was constructed by X-Genie++ for Sun using SunOs. The developed numerical model predicts a recirculating zone, wake and pressure distribution in the external and internal flows.
Note:
Related Files :
greenhouse
Numerical simulation
Turbulence flow
Ventilation
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר מתוך כינוס
;
.
Language:
אנגלית
Editors' remarks:
ID:
32399
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:09
Scientific Publication
Greenhouse turbulence flow numerical simulation
534
Shklyar, A., Institute of Agricultural Engineering, Agricultural Research Organization, P.O. Box 6, Bet-Dagan 50250, Israel
Arbel, A., Institute of Agricultural Engineering, Agricultural Research Organization, P.O. Box 6, Bet-Dagan 50250, Israel
Greenhouse turbulence flow numerical simulation
The purpose of the present paper is to develop a two-dimensional numerical model for predicting internal and external flow patterns and their interaction in a modern greenhouse. Large dimensions usually characterize the greenhouse; in effect, a large Reynolds number. The turbulence flow in the domain is described by the Reynolds equations. The Reynolds stresses were modeled according to the eddy viscosity concept, which introduces the turbulent viscosity by the k-epsilon high Reynolds model. An iterative numerical procedure in general curvilinear coordinates systems was applied to the present physical system. The hybrid central/upwind differences were used for the convective terms and a central difference for the diffusion terms. The grid was constructed by X-Genie++ for Sun using SunOs. The developed numerical model predicts a recirculating zone, wake and pressure distribution in the external and internal flows.
Scientific Publication
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