由於近幾年電腦計算速度的大幅提昇,因此計算流體力學開始蓬勃的發展,各種模擬流場的商業軟體被開發出來。使用模擬的方式探討流場的變化是一種經濟且快速的方式,而且模擬的結果具有相當的可靠度,可以作為實驗前的參考。本文目的在發展以非結構性寬頻元素法與分步驟法為核心的解流場程式,並且加入動態網格以及週期性邊界條件,增加程式的可用性。程式適用於二維/三維不可壓縮流、層流的流場,以三角形與四面體元素進行計算,使用一些數學上的正解來驗證所使用的數值方法,最後使用所發展的程式進行模擬實際流場。二維流場部份的實際例模擬振動與靜止的圓柱流,而三維流場部份則是模擬複動式合成噴流。將結果與文獻和理論進行比較並討論,探討所發展程式的正確性
Because of the improvement of computer technology, the development of computational fluid dynamics is rapid. The main purpose of the thesis is to develop the code based on unstructured spectral element method that can solve two-dimensional/three-dimensional incompressible flows. The thesis uses some exact solution to validate accuracy of the code. Finally, the thesis uses some references and data of experiment to validate the code is reliable if we use it to simulate the physical problems. The thesis simulates stationary and oscillatory cylinder flows in two-dimension. The thesis simulates the flow of double acting synthetic jet in three-dimension.