[HTML][HTML] Effects of compressible flow phenomena on aerodynamic characteristics in Hyperloop system

KS Jang, TTG Le, J Kim, KS Lee, J Ryu - Aerospace Science and …, 2021 - Elsevier
In this study, numerical simulations were conducted at various pod speeds (vpod= 100–350
m/s) using an unsteady, compressible solver with the Reynolds-averaged Navier–Stokes …

Physics of vacuum generation in zero-secondary flow ejectors

R Arun Kumar, G Rajesh - Physics of Fluids, 2018 - pubs.aip.org
This paper aims to investigate the secondary flow characteristics and the associated vacuum
generation caused with increase in the primary pressure ramping in zero-secondary flow …

Mixing enhancement of transverse jets in supersonic crossflow using an actively controlled novel fluidic oscillator

S Maikap, AK Rajagopal - Physics of Fluids, 2024 - pubs.aip.org
This study investigates the fluid dynamics and mixing characteristics of an oscillating sonic
jet injected into a supersonic cross flow of Mach 2.1 using experimental and computational …

Strong shock solutions in symmetric wedge flows: Unphysical or unstable?

G Sivaprasad, G Rajesh, T Jayachandran… - Physics of …, 2023 - pubs.aip.org
This paper investigates the strong shock solutions in a supersonic wedge experimentally,
analytically, and numerically. Experiments and computations are conducted on scaled-down …

Onset conditions for Mach disk formation in underexpanded jet flows

R Muraoka, T Hiejima - Physics of Fluids, 2022 - pubs.aip.org
In this study, the formation conditions of the Mach disk in an underexpanded jet flow were
numerically and theoretically investigated under sonic injection conditions and the …

Experimental characterisation and data-driven modelling of unsteady wall pressure fields induced by a supersonic jet over a tangential flat plate

S Meloni, F Centracchio, E De Paola… - Journal of Fluid …, 2023 - cambridge.org
This work deals with the investigation and modelling of wall pressure fluctuations induced by
a supersonic jet over a tangential flat plate. The analysis is performed at several nozzle …

Prediction of Mach stem height in compressible open jets. Part 1. Overexpanded jets

V Paramanantham, S Janakiram… - Journal of Fluid …, 2022 - cambridge.org
The flow from a supersonic nozzle when operated at off-design conditions exhibits a wide
variety of complex flow structures. The prominent ones are the shock reflections inside the …

Decay of supersonic rectangular jet issuing from a nozzle with diagonal expansion ramps

S Bogadi, BTN Sridhar - Thermal Science, 2019 - doiserbia.nb.rs
This paper addresses the effect of expansion ramps on the decay characteristics of a
controlled supersonic rectangular jet. A Mach 1.8 rectangular jet issuing from a converging …

Investigation of a highly underexpanded jet with real gas effects confined in a channel: flow field measurements

B Fond, CN Xiao, C T'Joen, R Henkes, P Veenstra… - Experiments in …, 2018 - Springer
This article describes experiments to investigate the fluid-to-wall interaction downstream of a
highly underexpanded jet, with a pressure ratio of 120, confined in a channel. Heat transfer …

Theoretical prediction for the Mach-disk height in two-dimensional supersonic underexpanded jets

C Jiang, T Han, S Hu, Z Gao, CH Lee - AIAA Journal, 2022 - arc.aiaa.org
Supersonic jets are in common use in aerospace, where the Mach-disk height is an
important parameter to the aerothermodynamic and acoustic effects of the related …