某新型减阻试验台理论仿真

The Theory Simulation Study of One New Drag-reduction Test-bed

针对现今水洞、风洞减阻试验准备过程繁琐、周期长、费用昂贵等问题,根据同轴旋转粘度计原理,提出了针对脊状结构减阻、涂层减阻等减阻技术的新型试验台。通过选取V型和U型两种脊状结构,对试验台模型进行模拟仿真计算,将具有脊状结构的试验台壁面剪切力值和湍流强度与光滑试验台数据进行比较,得到了较好的减阻效果。从而说明运用本试验台进行减阻试验的方案是切实可行的。

Because it is so many problems in drag-reduction experiments of water and wind tunnel that complex preparing, long period, expensive cost etc. , in the paper it is indicated that a new test-bed for ridge surface, coat etc. drag-reduction technique, based on the principle of coaxial cylinder rational viscometer. By selecting two shapes of V and U, simulating and computing the test-bed model, and comparing the wall shear force and turbulence intensity of the test-bed which with ridge surface with the data of the one which without, we get a good result. So it is feasible that do the drag-reduction experiments with the test-bed.