本論文之主要目的是探討吹風機之扇葉在相同的環境參數之下,由不同的葉片數目、扇葉軸向夾角以及發熱線圈圈數,對於吹風機及周邊溫度場分佈所造成之影響。首先使用三維繪圖軟體(SolidWorks)繪製零件模型,並透過其附加模擬流體分析模組(SolidWorks Flow Simulation)來進行有限元素分析,然後分別針對不同扇葉數目(6、7、8、9葉)、軸向夾角角度(15°、20°、25°、30°、35°、40°、45°、50°、55°)及發熱線圈圈數(1、2、4、6、8、10圈)三方面,經由數值模擬之方式探討吹風機在使用過程中,氣體流場與待測面溫度場之變化。在數值模擬分析過程中,對於不同網格精度及分析元素數量,造成分析所需時間之長短亦進行探討。最後分析結果顯示:主要影響溫度場變化之因素為軸向夾角之大小。
In this thesis the temperature field variation for fan blades of the hair dryer is modeled and investigated by using numerical simulation. At first, the commercially available CAD software " SolidWorks" was used to construct the model; subsequently, the corresponding fluid analysis module "SolidWorks Flow Simulation" was employed to carry out the numerical simulation. The influences of fan blades, axial angles and nichrome heating spiral coils on the temperature field for a hair dryer are demonstrated in detail, depending on the number of elements and calculation time. It is found that axial angles are the primary factors to lead towards temperature field variation.