Experiments on turbulence behind a grid with jet injection in downstream and upstream direction

AIP Publishing - Tập 18 Số 4 - Trang 411-414 - 1975
Y. Tassa1, Y. Kamotani1
1Case Western Reserve University, Cleveland, Ohio 44106

Tóm tắt

Turbulence behind a biplanar grid with jets of air injected at the grid surface either in the upstream or the downstream direction was found to be nearly isotropic for x/M ≳ 20. Turbulence level increases with the injection rate for both upstream and downstream injection. The shape of the energy spectrum functions and microscales do not vary with the injection rate. The microscales for upstream injection are larger than those for downstream injection.

Từ khóa


Tài liệu tham khảo

1974, J. Fluid Mech., 62, 115, 10.1017/S0022112074000607