| 摘要 |
A ducted spike diffuser for reducing forebody drag and rain erosion of blunt bodies operating at supersonic speeds. The spike has a directed conical front section to receive high-pressure oncoming air. This air is ejected at substantially right angles to the freeflow from an annular gap at the rear of the conical front section. This not only decreases pressure drag on the conical section but causes the conical bow shock wave-shear layer to occur radially further from the blunt body, resulting in better rain dispersion and decreased erosion of the blunt body.
|
