发明名称 |
METHOD AND APPARATUS FOR INCREASING THE EFFECTIVENESS AND EFFICIENCY OF MULTIPLE BOUNDARY LAYER CONTROL TECHNIQUES |
摘要 |
In an apparatus and method for ejecting an additive for significantly reduci ng the drag of a first fluid moving relative to a wall, a drag-reducing substan ce is conditioned by causing a second fluid (5), which includes the drag-reduci ng substance as a dispersed solid, liquid or gas, to flow through a nozzle (13) . The second fluid is then passed by a vortex chamber (4) prior to ejection of the second fluid into the first fluid via an aperture that includes a Coanda surface (8) on a portion thereof. Additional techniques are also disclosed which increase the effectiveness and efficiency of ejecting a drag-reducing substance into a fluid that is moving relative to a wall, and which thus enable multiple layer to be established withougt the undersirable disruption of the boundary layer and without the rapid diffusion of the additives acros s the boundary layer that occur in prior art ejection techniques. |
申请公布号 |
CA2416784(C) |
申请公布日期 |
2008.04.22 |
申请号 |
CA20012416784 |
申请日期 |
2001.07.17 |
申请人 |
CORTANA CORPORATION |
发明人 |
MOORE, KENNETH J.;BABENKO, VICTOR V.;GORBAN, VLADIMIR A.;RYAN, THOMAS D. |
分类号 |
B63B1/34;B63H11/00;B63B1/38 |
主分类号 |
B63B1/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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