Charles C. S. Song, Fellow

Industrial and Environmental Flows

This research group is studying the development of large-scale flow computation methods and computer codes for scientific and engineering applications. Their objectives are to advance the state of the art of computational fluid dynamics and to promote its applications to industrial and environmental problems through the development of:

• Improved governing equations and boundary conditions
• Improved modeling techniques and numerical schemes

In the first area, the group has developed the compressible boundary layer theory and the computational method based on the weakly compressible flow equations. This approach is about 100 times more efficient than a good conventional method based on the incompressible flow equations. The method can also accurately calculate highly time-dependent flows that cannot be computed with the incompressible flow approach. The research group also developed a virtual single phase flow model for the simulations of naturally-occurring cavitating flows.

In the second area, the researchers developed a general four-dimensional vector approach to simulate time-dependent three-dimensional flow. With this approach, it is possible to obtain a very accurate computation method for solving problems involving very rapid grid movement and deformation. The group is also developing a fully compressible two phase flow model for ventilated supercavitating flows. They have found that the treatment of the equation of continuity, which embodies the compressibility effect, is the key to simulating cavitating flows.

Research Group and Collaborator

Xiang Ying Chen, Research Associate
Jainming He, Research Associate
Qiao Qin, Graduate Student Researcher
Fayi Zhou, University of Alberta, Edmonton, Alberta, Canada