查詢結果分析
來源資料
相關文獻
- 具有熱源與冷源的傾斜正方形空間內自然對流之數值研究
- Theoretical Predictions and Experimental Measurements of Particle Deposition on an Isothermal Vertical Cylinder
- 以流場觀測探討在不同傾斜及溫差下突擴型封閉空間內懸浮流體之自然對流
- Natural Convection in a Porous Enclosure with Water Evaporation and Condensation
- Radiation Effect on Free Convection about a Truncated Cone Embedded in a Saturated Porous Medium
- 封閉盒內逆向熱質自然對流中的上隔板效應
- Combined Heat and Mass Transfer by Laminar Natural Convection in a Vertical Square Duct
- 高展弦比之密閉區內田垂直溫度梯度與水平濃度梯度引起的熱質自然對流
- Effects of Suction and Blowing on the Formation of Longitudinal Vortices in Natural Convection Flow over a Horizontal Plate
- 小型毛細式泵吸環路之實驗研究
頁籤選單縮合
題 名 | 具有熱源與冷源的傾斜正方形空間內自然對流之數值研究=Numerical Study on Natural Convection in an Inclined, Square Cavity with Heater and Cooler |
---|---|
作 者 | 余元利; | 書刊名 | 正修學報 |
卷 期 | 12 1999.07[民88.07] |
頁 次 | 頁107-116 |
分類號 | 440.137 |
關鍵詞 | 自然對流; 絕熱表面; 遲滯現象; Natural convection; Adiabatic surface; Hysteresis phenomenon; |
語 文 | 中文(Chinese) |
中文摘要 | 本文以有限差分法模擬部份加熱與部份冷卻的傾斜正方形空間內自然對流熱傳現象,其中 兩相對壁完全絕熱,另兩相對壁分別為熱源-絕熱表面組合與冷源-絕熱表面組合,工作流體為空 氣,流動為二維穩態層流,且在Boussinesq approximation假設下,推導其統制方程,考慮的參數包 括熱源位置S□/H與長度L□/H、冷源位置S□/H與長度L□/H及其傾斜角�痋A而Ra=10□,數值 計算顯示,當S□/H<S□/H時,Nu-�离鰜Y圖呈現遲滯現象 (hysteresis phenomenon)。 |
英文摘要 | In this paper a finite-difference numerical simulation of natural convection heat transfer in an inclined, square cavity with a partial heater and a partial cooler is performed. The two opposed walls of the cavity are respectively heater-adiabatic surface and cooler-adiabatic surface combinations while the two connecting walls are adiabatic. The working fluid is air. A system of governing equations for the two dimensional steady, laminar natural convection in the cavity is derived following the Boussinesq approximation. Relevant parameters including heater position S□/H and lenth L□/H, cooler position S□/H and length L□/H, and inclined angle �� are considered. Rayleigh number is kept constant 105□. Numerical computation indicates that for S□/H < S□/H , map of Nu vs �� exhibits hysteresis phenomenon. |
本系統中英文摘要資訊取自各篇刊載內容。