The inlet is designed to compress the air and increase static pressure. In present work, analyses have been carried out using 2D axisymmetric Reynolds averaged Navier Stokes equations (RANS) capture flow physics of shock structure produced by multi-row disk device at different semi-cone angles. work involves numerical studies on over disk. Drag coefficient, pressure variation, vortex behavior w...

In order to improve the thermal protection performance of active system (TPS) based on spike and jet, an adjustable non-ablative system, which can be rotated in direction free stream, is proposed this paper. The mechanism optimal installation angle are analyzed by adopting numerical method. results show that attack has great influence peak heat flux hypersonic vehicles, dangerous point windward...

anthropometry, a useful method for evaluating craniofacial soft tissues, makes the quantitative description of the face possible. it also assesses the degree of disharmony and imbalance in the growth and development of the face. the aim of this study was to examine the overall common age-related changes of nasomaxillary complex of adolescent boys in northeast iran. three- hundred- twelve 12 to ...

INTRODUCTION ABSTRACT Particle depositional studies from nasal sprays are important for efficient drug delivery. The main influences on deposition involve the nasal cavity geometry and the nasal spray device of which its parameters are controlled by the product design. It is known that larger particle sizes (>>10μm) at a flow rate of 333 ml/s impact in the anterior portion of the nose, leaving ...

Hypersonic boundary-layer stability has significant importance in vehicle design and successful operation. This paper investigates the stabilization effects of local wall cooling on hypersonic boundary layers over a 5 deg half-angle blunt cone with nose radius 0.0254 mm. We employed high-order-accurate flow solver to calculate steady for freestream Mach number 6.0 unit Reynolds [Formula: see te...

introduction: this study was performed to evaluate the correlation between the objective and subjective sensation of nasal patency, assessed through a validated questionnaire, the italian version of the nose scale, and the rhinomanometric results in a large cohort of patients complaining about nasal obstruction.     materials and methods: data was obtained from a total of 233 adult patients, (1...

In this study, four solid fuel model rockets with conical, parabolic, power and haack series nose cones that can carry 4 kg payload at an average altitude of 3 km were designed in the OpenRocket program. Later, notched delta fin was mounted on these rockets. The effects changes speed, stability, acceleration, weight analyzed numerically As a result analysis, it determined conical rocket showed ...