By using the Baldwin-Lomax turbulent model, the formation of the leading edge separation bubble, as well as the convection of vortex along the airfoil surface and unsteady phenomena of vortex are simulated at high angle of attack. 应用BaldwinLomax湍流二层代数模型模拟了大攻角时前缘分离涡的形成,旋涡对流及其非定常现象。
In fact, the blade trailing edge denotes the profile of outflow, in which the wake, the shock wave and other secondary flow phenomena are involved, while the blade leading edge presents potential interference on the former blade. 叶片尾缘线表征了叶片出口气流的分布型,它囊括了尾迹、激波、二次流等所有影响,另一方面,叶片前缘线代表了其对上游流场的势干扰。
In computer vision and image processing, edge detection concerns the localization of significant variations of the grey level image and the identification of the physical phenomena that originated them. 在计算机视觉和图像处理中,边缘检测涉及到图像的灰度级发生重要变化的定位和导致这些变化的物理现象。
Up to now, digital matting can only tackle the part occlusion phenomena at the edge of the front objects, instead of the reflection and refraction phenomena. 传统的数字遮片技术仅能处理物体边缘的遮挡透射关系,不能反映物体的反射、折射等光学现象。
The chronic lesions had an appearance of shrinking, sharp edge, even signals, and had no lunar circle phenomena and obvious enhancement. 慢性病灶有收缩感,边缘较锐利,信号较均匀,周围无晕环征象,增强后无强化。
In addition, surface wave transmission along the edge of the YIG gyromagnetic PhCs is numerically simulated at microwave frequencies, which verifies the physical phenomena of the unidirectional edge mode. 此外,数值仿真了微波段YIG旋磁光子晶体的边界模式的传输过程,证实了单向边界模的物理现象。