|
|
|
|
|
José Jiménez-Varona
Rolling motion is the motion where a body flies at a constant pitch angle a with respect to the freestream velocity vector, while undergoing a constant angular rotation p about its longitudinal axis. An effect of this motion is the appearance of a Magnus...
ver más
|
|
|
|
|
|
|
|
|
|
|
Chunlong Huang, Kunde Yang, Hui Li and Yukun Zhang
The flow noise of a sonar platform is one of the main background interferences for sonar applications. This paper focuses on the flow noise of an axisymmetric body in a complex oceanic environment. Under the condition of a constant stream velocity which ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Matthew C. Jones and Eric G. Paterson
To better understand the influence of swirl on the thermally-stratified near wake of a self-propelled axisymmetric vehicle, three propulsor schemes were considered: a single propeller, contra-rotating propellers (CRP), and a zero-swirl, uniform-velocity ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Matthew C. Jones and Eric G. Paterson
To better understand the influence of swirl on the thermally-stratified near wake of a self-propelled axisymmetric vehicle, three propulsor schemes were considered: a single propeller, contra-rotating propellers (CRP), and a zero-swirl, uniform-velocity ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Georgios Paterakis, Konstantinos Souflas, Andreas Naxakis and Panayiotis Koutmos
This work investigates the non-reacting time averaged and fluctuating flow field characteristics downstream of a variety of axisymmetric baffles, operating in combination with an upstream double-cavity premixer arrangement. The study aims to broaden know...
ver más
|
|
|
|
|
|
|
|
|
|
|
Roberto Pacciani, Michele Marconcini and Andrea Arnone
The paper describes the development and validation of a novel computational fluid dynamics (CFD)-based throughflow model. It is based on the axisymmetric Euler equations with tangential blockage and body forces and inherits its numerical scheme from a st...
ver más
|
|
|
|
|
|
|
|
|
|
|
José Jiménez-Varona and Gabriel Liaño
The flow at high angles of attack over axisymmetric configurations is not symmetric. The mechanism that triggers the asymmetry may be a combination of a global or hydrodynamic instability (temporal instability) combined with a convective instability (spa...
ver más
|
|
|
|
|
|
|
|
|
|
|
Andrea Magrini
Three-dimensional throughflow models represent a turbomachinery cascade via a force distribution without the need for detailed geometric modelling in the numerical solution, saving consistent computational resources. In this paper, we present the applica...
ver más
|
|
|
|
|
|
|
|
|
|
|
Anargyros S. Mavrakos, Dimitrios N. Konispoliatis and Spyridon A. Mavrakos
The present contribution aims at presenting a semi-analytical solution methodology of the linear hydrodynamic diffraction and radiation problems induced by two coaxial moonpool-type floaters subjected to incident waves. The flow field around the floaters...
ver más
|
|
|
|
|
|
|
|
|
|
|
Rodolfo Bontempo and Marcello Manna
This paper investigates the impact of the standard approximations embodied in the well-known Momentum Theory on its performance prediction capabilities. To this aim, the results of the momentum theory, which is still widely used in all Blade Element/Mome...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lakshmi Narayana Phaneendra Peri, Antonella Ingenito and Paolo Teofilatto
The goal of this paper is to investigate the aerodynamic and aerothermodynamic behavior of the Schiaparelli capsule after the deployment of a supersonic disk-gap-band (DGB) parachute during its re-entry phase into the Martian atmosphere. The novelty of t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Tiezhi Sun, Xiaoshi Zhang, Jianyu Zhang and Cong Wang
High-speed underwater vehicles are subjected to complex multiphase turbulent processes, such as the growth, development, shedding, and collapse of cavitation bubbles. To study the cavity evolution and pressure pulsation characteristics, in this paper, cl...
ver más
|
|
|
|
|
|
|
|
|
|
|
Seungnam Kim and Spyros A. Kinnas
Reducing the on-board noise and fluctuating pressures on the ship hull has been challenging and represent added value research tasks in the maritime industry. Among the possible sources for the unpalatable vibrations on the hull, propeller-induced pressu...
ver más
|
|
|
|
|
|
|
|
|
|
|
Thomas J. Lambert, Bojan Vukasinovic and Ari Glezer
A novel support mechanism for a wind tunnel model is designed, built, and demonstrated on an aerodynamic platform undergoing dynamic maneuvers, tested with periodic motions up to 20 Hz. The platform is supported by a 6-DOF (six degrees of freedom) traver...
ver más
|
|
|
|
|
|