齐齐哈尔大学学报（自然科学版）
齊齊哈爾大學學報（自然科學版）
제제합이대학학보（자연과학판）
JOURNAL OF QIQIHAR UNIVERSITY(NATURAL SCIENCE EDITION)
2014年
4期
32-36
,共5页
CFD%汽车%外流场%数值模拟
CFD%汽車%外流場%數值模擬
CFD%기차%외류장%수치모의
CFD%cars%flow field%numerical simulation
CFD（计算流体力学）软件由于其经济性在汽车动力学上得到了广泛的应用，其方法对于预测和改进汽车的气动性能，以及对于指导汽车的产品设计都具有重要的意义。利用ANSYS ICEM 对汽车外流场进行二维建模并对其进行网格划分，基于ANSYS FLUENT对外流场进行数值模拟，得出其压力云图、速度云图和速度矢量图。从直观上对汽车外流场的气流情况有了了解，通过数值模拟的数据对汽车外流场的实际情况进行分析，为优化汽车的气动性能提供了理论依据。
CFD（計算流體力學）軟件由于其經濟性在汽車動力學上得到瞭廣汎的應用，其方法對于預測和改進汽車的氣動性能，以及對于指導汽車的產品設計都具有重要的意義。利用ANSYS ICEM 對汽車外流場進行二維建模併對其進行網格劃分，基于ANSYS FLUENT對外流場進行數值模擬，得齣其壓力雲圖、速度雲圖和速度矢量圖。從直觀上對汽車外流場的氣流情況有瞭瞭解，通過數值模擬的數據對汽車外流場的實際情況進行分析，為優化汽車的氣動性能提供瞭理論依據。
CFD（계산류체역학）연건유우기경제성재기차동역학상득도료엄범적응용，기방법대우예측화개진기차적기동성능，이급대우지도기차적산품설계도구유중요적의의。이용ANSYS ICEM 대기차외류장진행이유건모병대기진행망격화분，기우ANSYS FLUENT대외류장진행수치모의，득출기압력운도、속도운도화속도시량도。종직관상대기차외류장적기류정황유료료해，통과수치모의적수거대기차외류장적실제정황진행분석，위우화기차적기동성능제공료이론의거。
CFD software has been widely used in vehicle dynamics because of economy, the method of which has a profound effect on the prediction and improvement of aerodynamic performance, as well as the car designing. A 2d model was built and the mesh was presented based on ANSYS ICEM. The pressure contour, velocity contour and velocity vector graphic were obtained by the numerical simulation of flow field for cars based on FLUENT. Therefore, from the current situation of flow field, an intuitive understanding was received and the theory evidence was provided for the optimization of car's aerodynamic performance.
