Results 21 to 30 of about 62,597 (240)
Modelling noise from rotating sources in subsonic and supersonic regimes [PDF]
, 2008 Noise is an environmental concern and due to the increasing interest in helicopters as an alternative inter-city transportation, research for more environment friendly helicopters is continuously growing.
Loiodice, Sabino
core +7 more sources
Aerospace, 2018 The aim of this work is to highlight the significance of Fluid–Thermal–Structural Interaction (FTSI) as a diagnosis of existing designs, and as a means of preliminary investigation to ensure the feasibility of new designs before conducting experimental ...
Kalyani Bhide +2 more
doaj +1 more source
A Unified Asymptotic Theory of Supersonic, Transonic, and Hypersonic Far Fields
Axioms, 2022 The problems of steady, inviscid, isentropic, irrotational supersonic plane flow passing a body with a small thickness ratio was solved by the linearized theory, which is a first approximation at and near the surface but fails at far fields from the body.
Lung-Jieh Yang, Chao-Kang Feng
doaj +1 more source
Implicit Subgrid-Scale Modeling of a Mach 2.5 Spatially Developing Turbulent Boundary Layer
Entropy, 2022 We employ numerically implicit subgrid-scale modeling provided by the well-known streamlined upwind/Petrov–Galerkin stabilization for the finite element discretization of advection–diffusion problems in a Large Eddy Simulation (LES) approach. Whereas its
Guillermo Araya, Christian Lagares
doaj +1 more source
Expansion Waves at the Outlet of the Supersonic Two-Phase Flow Nozzle
Journal of Thermal Science and Technology, 2007 Two-phase flow nozzles are used in the total flow system of geothermal power plants and in the ejector of the refrigeration cycle, etc. One of the most important functions of the two-phase flow nozzle is converting two-phase flow thermal energy into ...
Masafumi NAKAGAWA +3 more
doaj +1 more source
Estimation Method and Verification of Pressure in Supersonic Inlet
Hangkong gongcheng jinzhan, 2020 Prediction and limitation of inlet pressure are important for supersonic vehicles. Numerical simulation on high speed inlet flow is conducted, and pressure characteristics with different Mach numbers, attack angles, yaw angles and excess air coefficients
LI Qiang, CAO Xiaolong
doaj +1 more source
MicromachinesShock wave boundary/layer interactions (SWBLIs) are critical in high-speed aerodynamic flows, particularly within supersonic regimes, where unsteady dynamics can induce structural fatigue and degrade vehicle performance.
Bei Wang +8 more
doaj +1 more source
Effect of Quasi-Static Door Operation on Shear Layer Bifurcations in Supersonic Cavities
AerospaceSpan-wise homogeneous supersonic cavity flows display complicated structures due to shear layer breakdown, flow acoustic resonance, and even non-linear hydrodynamic-acoustic interactions. In practical applications, such as aircraft bays, the cavity is of
Skyler Baugher +5 more
doaj +1 more source
FluidsAdjoint-based optimization methods, that were previously in the realm of computational fluid dynamics (CFD) research, are now available in commercial software.
Carola Rovira Sala +3 more
doaj +1 more source
Gas Temperature Control of a Supersonic Heat-Airflow Simulated Test System
IEEE Access, 2020 In order to accurately control the gas temperature of a supersonic heat-airflow simulated test system, this paper introduces the working principle of the system, including the fuel supply subsystem and the air supply subsystem, establishes the ...
Chaozhi Cai +3 more
doaj +1 more source