发明名称 |
Method and apparatus for reducing turbulent drag |
摘要 |
The systems and methods of the invention include systems and techniques for controlling a turbulent boundary layer flow with a transverse traveling wave, oscillating at certain selected frequencies, amplitudes and wavelengths, to provide substantial reductions of drag. To this end, the systems and processes can include a boundary layer control system having an object with at least one surface exposed to a medium flowing over the surface. A plurality of excitation elements may be arranged on the surface and these elements are capable of exciting a traveling wave force field in a span-wise direction that is substantially parallel to the surface and perpendicular to direction of the flow. A first component of the traveling wave force field in the span-wise direction is substantially greater than a second component of the traveling wave force field, that is substantially perpendicular to the span-wise direction.
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申请公布号 |
US6520455(B2) |
申请公布日期 |
2003.02.18 |
申请号 |
US20010054235 |
申请日期 |
2001.11.13 |
申请人 |
BROWN UNIVERSITY RESEARCH FOUNDATION |
发明人 |
KARNIADAKIS GEORGE EM;BREUER KENNETH;SYMEONIDIS VASILEIOS |
分类号 |
B06B1/06;B63B1/34;B64C23/00;B64C23/04;F15D1/12;(IPC1-7):B64C21/00 |
主分类号 |
B06B1/06 |
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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