This paper aims to assess the control mechanism's efficiency and flow pattern in pipe. The was investigated for Mach numbers M = 1.25, 1.3, 1.48, 1.6, 1.8, 2.0, 2.5, 3.0 a step height of 3 mm. NPRs tests were from 11 3. revealed minimum duct requirement given number NPR as L 2D. Only some selected cases where mechanism impacts considerably are presented. In most cases, field same. There is reve...

Comparative Computational Analysis of NATO 5.56 mm, APM2 7.62 mm and AK-47 7.82 Bullet Moving at Mach 2.0 in Close Vicinity to the Wall Various rifles require unique bullets. Each bullet has its capability, speed, impact on target. In metropolitan warfare, several bullets are shot close solid walls. These near walls affect pressure distribution over entire asymmetric bullet. The influence a ref...

Mid-infrared laser absorption imaging of flame temperature and species concentration is expanded to three dimensions with linear tomographic methods using Tikhonov regularization. A spatial convolution two small-scale (< cm) laminar Bunsen-style flames, fueled by either ethylene or ethane, comprised the target flowfields. The doublets were alternately backlit tunable radiation from a quantum ca...

INTRODUCTION Advanced propulsion systems involve highly complex combustion flow processes. Extensive and accurate flowfield measurements can help to guide and support engine development. For example, in the hypersonic dual-combustor ramjet, the subsonic combustion chamber operating at fuel-rich conditions generates a complex multiphase combustion flow comprising liquid fuel droplets, soot parti...

Airfoil aerodynamic optimization based on single-point design may lead to poor off-design behaviors. Multipoint that considers the flow conditions is usually applied improve robustness and expand flight envelope. Many deep learning models have been utilized for rapid prediction or reconstruction of flowfields. However, flowfield accuracy be insufficient cruise efficiency optimization, model gen...

The nucleus of the basal optic root (nBOR) receives direct input from the contralateral retina and is the first step in a pathway dedicated to the analysis of optic flowfields resulting from self-motion. Previous studies have shown that most nBOR neurons exhibit direction selectivity in response to large-field stimuli moving in the contralateral hemifield, but a subpopulation of nBOR neurons ha...