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Abstract
The main purpose of this study is to overcome the destabilization problem that usually occurs in turbulent flow calculations using QUICK schemes. The consistently formulated QUICK scheme developed by Hayase et at. is employed in calculations on nonuniform grid meshes. Using the proposed stability-enhancing measure for the source terms, the turbulent flow calculations with the orthodox QUICK scheme are demonstrated to be feasible either with the standard k-ε turbulence model or with the low-Reynolds-number k-ε turbulence model. This study also demonstrates that a remarkable savings in the number of grid nodes required to yield a grid-independent solution can be obtained through use of the orthodox QUICK scheme, in comparison to the low-order scheme, while the hybrid QUICK/low-order scheme cannot obtain such significant savings.
Notes
Address correspondence to Professor K. C. Chang, Institute of Aeronautics and Astronautics, National Cheng Kung University, Tainan, Taiwan 70101, Republic of China.