Visualization and measurement study of vortex flow over delta wing with dorsal fins
Visualization and measurement study of vortex flow over delta wing with dorsal fins
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发表时间：
2009
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影响因子：
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通讯作者：
Liu Feng
中科院分区：
文献类型：
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作者：
Liu Feng
A smoke/laser-sheet visualization and measurement experimental study was performed on a flat-plate delta wing of 82.5°sweep angle and combinations of the identical delta wing with a low and high dorsal fins respectively,which were mounted vertically in the symmetric incidence plane of the wing.Test was conducted at angles of attack of 29° and 0° sideslip.The test results clearly indicate that the vortices over the wing alone model are conical,symmetric and steady;the vortices become asymmetric and non-conical over the model with the low fin and recover symmetry and conicity over the model with the high fin for the same flow conditions,providing first time experimental evidence of the theoretical predictions and depicting the flow behavior after the onset of the vortex instability.
