Publications related to Lift-induced drag

Physics-based estimates of drag coefficients for the impact pressure calculation of dense snow avalanches.

Christophe Ancey, Johan Alexandre Philippe Gaume, Michael Lukas Kyburz

In avalanche engineering and hazard mapping, computing impact pressures exerted by avalanches on rigid structures has long been a difficult task that requires combining empirical equations, rules of thumb, engineering judgment and experience. Until the 199 ...

2022

Design of an intake and a thruster for an atmosphere-breathing electric propulsion system

Francesco Romano, Thomas Binderup Jensen

Challenging space missions include those at very low altitudes, where the atmosphere is the source of aerodynamic drag on the spacecraft, that finally defines the mission's lifetime, unless a way to compensate for it is provided. This environment is named ...

2022

Lagrangian analysis of bio-inspired vortex ring formation

Karen Ann J Mulleners, Mrudhula Baskaran

Pulsatile jet propulsion is a highly energy-efficient swimming mode used by various species of aquatic animals that continues to inspire engineers of underwater vehicles. Here, we present a bio-inspired jet propulsor that combines the flexible hull of a je ...

2022

Effects of wing kinematics, corrugation, and clap-and-fling on aerodynamic efficiency of a hovering insect-inspired flapping-wing micro air vehicle

Hoang Vu Phan, Khanh Nguyen

A flapping-wing micro air vehicle (FW-MAV) operating with aerodynamically optimal wing configuration and kinematics may save energy and thus prolong flight time. In this work, we use a computational-fluid dynamic method to investigate the effects of wing k ...

ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER2021

Insect Inspired Self-Righting for Fixed-Wing Drones

Dario Floreano, Charalampos Vourtsis, Victor Casas Rochel, William John Stewart

Micro Aerial Vehicles (MAVs) are being used in a wide range of applications such as surveillance, reconnaissance, inspection, and search and rescue. However, due to their size and mission profiles, they are prone to tipping over, jeopardizing their operati ...

2021

Accurate buoyancy and drag force models to predict particle segregation in vibrofluidized beds

Mehrdad Kiani Oshtorjani

The segregation of large intruders in an agitated granular system is of high practical relevance, yet the accurate modeling of the segregation (lift) force is challenging as a general formulation of a granular equivalent of a buoyancy force remains elusive ...

AMER PHYSICAL SOC2021

Homogenization-based design of microstructured membranes: wake flows past permeable shells

François Gallaire, Edouard Boujo, Pier Giuseppe Ledda, Giuseppe Antonio Zampogna

A formal framework to characterize and control/optimize the flow past permeable membranes by means of a homogenization approach is proposed and applied to the wake flow past a permeable cylindrical shell. From a macroscopic viewpoint, a Navier-like effecti ...

CAMBRIDGE UNIV PRESS2021

An experimental study on the upper part-load elliptical vortex instability in a Francis turbine

François Avellan, Elena Vagnoni, Arthur Tristan Favrel, Andres Müller, Ali Amini

This paper presents preliminary results of an experimental study on the occurrence and development of the upper part-load instability in a reduced-scale Francis turbine. The study includes draft tube pressure measurements, high-speed flow visualization, an ...

IOP PUBLISHING LTD2021

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Lift-induced drag

Physics-based estimates of drag coefficients for the impact pressure calculation of dense snow avalanches.

Growth, timing, & trajectory of vortices behind a rotating plate

Design of an intake and a thruster for an atmosphere-breathing electric propulsion system

Lagrangian analysis of bio-inspired vortex ring formation

Effects of wing kinematics, corrugation, and clap-and-fling on aerodynamic efficiency of a hovering insect-inspired flapping-wing micro air vehicle

Insect Inspired Self-Righting for Fixed-Wing Drones

Accurate buoyancy and drag force models to predict particle segregation in vibrofluidized beds

Homogenization-based design of microstructured membranes: wake flows past permeable shells

Effects of leading-edge separation on the vortex-induced vibration of an elongated bluff body

An experimental study on the upper part-load elliptical vortex instability in a Francis turbine

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Accurate buoyancy and drag force models to predict particle segregation in vibrofluidized beds

Homogenization-based design of microstructured membranes: wake flows past permeable shells

An experimental study on the upper part-load elliptical vortex instability in a Francis turbine

Physics-based estimates of drag coefficients for the impact pressure calculation of dense snow avalanches.

Growth, timing, & trajectory of vortices behind a rotating plate

Lagrangian analysis of bio-inspired vortex ring formation

Insect Inspired Self-Righting for Fixed-Wing Drones

Design of an intake and a thruster for an atmosphere-breathing electric propulsion system

Effects of leading-edge separation on the vortex-induced vibration of an elongated bluff body

Effects of wing kinematics, corrugation, and clap-and-fling on aerodynamic efficiency of a hovering insect-inspired flapping-wing micro air vehicle