Predictions of impinging flows with Low-reynolds number turbulence models
Joint Authors
Source
Sciences et Technologie : Sciences Appliquées
Issue
Vol. 2004, Issue 22 (31 Dec. 2004), pp.86-91, 6 p.
Publisher
Publication Date
2004-12-31
Country of Publication
Algeria
No. of Pages
6
Main Subjects
Topics
Abstract AR
نستعمل مجموعة من نماذج الاضطراب k- ذا عدد رينولدس صغير لحساب رقمي لسيلان دفع غازي لنقطة توقف في شكلين (محبوس مع حرارة ثابتة، حر بتحويل حراري للجدار).
و قورنت من قبل نتائج حسابات السرعة الموازية للجدار، تقلباتها و عدد نوسلت بالمقاييس الموجودة.
نجد توافق جيد لإحداثية السرعة، لكن تعجز كل النماذج عن تكهن دقيق لإحداثية موتر رينولدس المضطرب الموافق.
زيادة ضروري لخفض سلم الطول بجانب حد في معادلة الجدار و ينتج عن ذلك تحسين التنبؤ الحسابي لتحويل الحرارة بين الغاز و الحائط بهذا النوع من النموذج.
Abstract EN
Several low-Reynolds number k- turbulence models have been used to simulate the flow and heat transfer in slot confined and circular unconfined impinging jet configurations.
Predictions for the velocity with its fluctuation and Nusselt number are compared to available experimental data.
The relative performance of the models is assessed.
It has been found that results obtained for the velocity parallel to the plate are in agreement with experimental data but none of models are entirely successful in predicting the radial Reynolds normal stress.
For heat transfer, an additional source term in the equation of was necessary for reducing near-wall length scales and improving the near-transfer predictions by means of the low-Reynolds number k- turbulence models.
American Psychological Association (APA)
Hadef, Redjem& Hadef, Ammar. 2004. Predictions of impinging flows with Low-reynolds number turbulence models. Sciences et Technologie : Sciences Appliquées،Vol. 2004, no. 22, pp.86-91.
https://search.emarefa.net/detail/BIM-443189
Modern Language Association (MLA)
Hadef, Redjem& Hadef, Ammar. Predictions of impinging flows with Low-reynolds number turbulence models. Sciences et Technologie : Sciences Appliquées No. 22 (2004), pp.86-91.
https://search.emarefa.net/detail/BIM-443189
American Medical Association (AMA)
Hadef, Redjem& Hadef, Ammar. Predictions of impinging flows with Low-reynolds number turbulence models. Sciences et Technologie : Sciences Appliquées. 2004. Vol. 2004, no. 22, pp.86-91.
https://search.emarefa.net/detail/BIM-443189
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 91
Record ID
BIM-443189