書誌事項
- タイトル別名
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- FACTORS OF AIRFLOW DISTRIBUTION FROM SYSTEM CEILING AIR DIFFUSERS AND ITS UNSTRUCTURED FINE ELEMENTS CFD SIMULATION
- システム天井用吹出口の吹出気流性状に影響を与える要因の整理と非構造格子系CFD 解析による検討 : 空調用吹出口のCFDモデリングのための吹出気流データの整備とその適用(その1)
- システム テンジョウヨウ フキダシグチ ノ フキダシ キリュウ セイジョウ ニ エイキョウ オ アタエル ヨウイン ノ セイリ ト ヒコウゾウ ゴウシケイ CFD カイセキ ニ ヨル ケントウ : クウチョウヨウ フキダシグチ ノ CFD モデリング ノ タメ ノ フキダシ キリュウ データ ノ セイビ ト ソノ テキヨウ(ソノ 1)
- Development of airflow data for CFD simulation with an air diffuser model and its application (Part 1)
- 空調用吹出口のCFDモデリングのための吹出気流データの整備とその適用(その1)
この論文をさがす
抄録
Computational Fluid Dynamics (hereafter, CFD) is one of the most useful techniques to predict the airflow distribution in air-conditioned and ventilated rooms. The previous studies show that the prescribed velocity method (hereafter, P. V. method) is effective to simulate complicated airflow from an air diffuser in CFD. However, the velocity distribution in the vicinity of the air diffuser as boundary conditions of coarse gird CFD using P. V. method can be affected by the airflow rate, the connecting conditions of the diffuser and supply air duct, and the buoyancy effect due to the temperature distribution.<br>In this paper, the development of the versatile airflow data for P. V. method and the method for its application are discussed. In the first study, the unstructured fine elements CFD simulations under isothermal condition are carried out and the obtained airflow distributions of the system ceiling air diffuser are compared. The relationship between the airflow rate and the velocity near the diffuser, the influence of connecting conditions of the diffuser and air duct are confirmed by the comparison of CFD results. In the second study, the influence of the buoyancy near the diffuser is compared to the inertial force of discharged air on the basis of local Archimedes number obtained by the unstructured CFD simulations under non-isothermal condition.
収録刊行物
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- 日本建築学会環境系論文集
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日本建築学会環境系論文集 77 (672), 55-64, 2012
日本建築学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282680179013376
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- NII論文ID
- 130004937053
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- NII書誌ID
- AA11830377
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- ISSN
- 1881817X
- 13480685
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- NDL書誌ID
- 023519224
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可