Research Initiation: An Investigation of the Turbulent Flow in a Suddenly Expanding Pipe Via an Orthogonal Decomposition(REU Supplement)

将进行数值预报，以探讨 在突然膨胀后的区域中的分离流动， 管道 再附着区和再循环分离区 区域将使用适当正交进行数值预测 尸体腐烂。 湍流结构的细节将在 确定与实验数据进行比较，这将是 用单点双色激光LDA系统获得。 这 组合方法可用于更一般的验证， 现有的代码在这个原型分离流。

A numerical prediction will be carried out to explore the details of the separated flow in the region following the sudden expansion in a pipe. The reattachment zone as well as the recirculating separated region will be predicted numerically with Proper Orthogonal Decomposition. Details of the turbulence structure will be determined for comparison to experimental data, which will be obtained with a single point two-color laser LDA system. This combined approach can be utilized for more general validation of existing codes in this prototype separating flow.