广东第二师范学院学报
廣東第二師範學院學報
엄동제이사범학원학보
Journal of Guangdong Education Institute
2012年
5期
52~56
,共null页
横掠管柬 对流换热 数值模拟
橫掠管柬 對流換熱 數值模擬
횡략관간 대류환열 수치모의
flow across tube banks; convective heat transfer; numerical simulation
采用标准k-ε模型和增强壁面函数法对空气横掠管束的强制对流换热进行数值模拟．采用SIMPLEC算法求解速度场和压力场的耦合，方程离散采用二阶迎风格式．计算得到的平均Nusselt数与现有文献中的实验关联式基本是吻合的．
採用標準k-ε模型和增彊壁麵函數法對空氣橫掠管束的彊製對流換熱進行數值模擬．採用SIMPLEC算法求解速度場和壓力場的耦閤，方程離散採用二階迎風格式．計算得到的平均Nusselt數與現有文獻中的實驗關聯式基本是吻閤的．
채용표준k-ε모형화증강벽면함수법대공기횡략관속적강제대류환열진행수치모의．채용SIMPLEC산법구해속도장화압력장적우합，방정리산채용이계영풍격식．계산득도적평균Nusselt수여현유문헌중적실험관련식기본시문합적．
A k-epsilon model and enhanced wall function method is applied to simulate the convective heat transfer of fluid flow across tube banks. The velocity field and pressure field are coupled and solved by the SIMPLEC algorithm. The second order scheme is employed to discretize the conservation equations. The calculated average Nusselt numbers are in well agreement with those from empirical correlations.
