E. Oktay et al., A NUMERICAL-SOLUTION OF 3D INVISCID ROTATIONAL FLOW IN TURBINES AND DUCTS, International journal for numerical methods in fluids, 26(8), 1998, pp. 907-926
The numerical solutions of inviscid rotational (Euler) hows were obtai
ned using an explicit hexahedral unstructured cell vertex finite volum
e method. A second-order-accurate, one-step Lax-Wendroff scheme was us
ed to solve the unsteady governing equations discretized in conservati
ve form. The transonic circular bump, in which the location and the st
rength of the captured shock are well predicted, was used as the first
test case. The nozzle guide vanes of the VKI low-speed turbine facili
ty were used to validate the Euler code in highly 3D environment. Desp
ite the high turning and the secondary flows which develop, close agre
ements have been obtained with experimental and numerical results asso
ciated with these test cases. (C) 1998 John Wiley & Sons, Ltd.