Listar IMTF - Artículos por título
Mostrando ítems 24-43 de 56
-
Flutter stability analysis of an elastically supported flexible foil. Application to the energy harvesting of a fully-passive flexible flapping-foil of small amplitude
(Elsevier, 2022-02)The aerodynamic forces on an oscillating flexible foil are used to study the flutter instability when the flexible foil is elastically mounted to translational and torsional springs and dampers at an arbitrary pivot axis. ... -
Force and torque reactions on a pitching flexible aerofoil
(Cambridge, 2023)Experimental measurements in a wind tunnel of the unsteady force and moment that a fluid exerts on flexible flapping aerofoils are not trivial because the forces and moments caused by the aerofoil's inertia and others ... -
Global stability analysis of the natural convection between two horizontal concentric cylinders
(ELSEVIER, 2021-06)In this investigation, the 2D flow between two horizontally positioned concentric cylinders (gravity per- pendicular to the axis of the cylinders), where the inner cylinder is kept at constant temperature Ti higher than ... -
Heat transfer in thermoelectric generators for waste wnergy recovery in piston engines
(MDPI, 2023-05-04)This paper investigates the design of a thermoelectric generator for exhaust gases from internal combustion engines. Experimentally validated CFD methodology was employed. Different issues are studied, such as the influence ... -
Higher order dynamic mode decomposition of an experimental trailing vortex
(AIP, 2022-10-27)The decay of trailing vortices is a fundamental problem in fluid mechanics and constitutes the basis of control applications that intend to alleviate the wake hazard. In order to progress, we use the recently developed ... -
Impact of alcohol–diesel fuel blends on soot primary particle size in a compression ignition engine
(Elsevier, 2022-11-01)The use of alternative fuels, such as bio-alcohols, in advanced propulsion systems could a feasible strategy to address several of the current issues associated to the use of internal combustion engines fuelled by carbonaceous ... -
Impact of zoning heating and air conditioning control systems in users comfort and energy efficiency in residential buildings
(Elsevier, 2022-07-05)Nowadays, in the residential sector, a widely used heating, ventilation and air conditioning system is the ducted direct expansion inverter system based on the on/off control of a single zone, which cannot guarantee the ... -
Improved tibiofemoral contact restoration after transtibial reinsertion of the anterior root of the lateral meniscus compared to in situ repair: a biomechanical study
(Springer, 2023)Purpose: To compare biomechanical behaviour of the anterior root of the lateral meniscus (ARLM) after a transtibial repair (TTR) and after an in situ repair (ISR), discussing the reasons for the efficacy of the more ... -
Influence of Loading Conditions on the Mechanical Performance of Multifilament Coreless UHMWPE Sutures Used in Orthopaedic Surgery
(IOAP-MPDI, 2022-03-31)This work studies the influence of loading velocity and previous cyclic loading history on the stiffness and strength of a multifilament coreless ultra-high-molecular-weight polyethylene (UHMWPE) surgical suture. Thread ... -
Influence of passive deformation in the lift coefficient of a NACA0012 wing model
(Elsevier, 2024)The extensive use of lightweight materials in aerial vehicle wings involves structural flexibility phenomena that generate non-negligible deformation effects. This influence is not restricted to big aircraft but also plays ... -
Modeling of the Influence of Operational Parameters on Tire Lateral Dynamics
(IOAP-MPDI, 2022-08-24)Tires play a critical role in vehicle safety. Proper modeling of tire–road interaction is essential for optimal performance of active safety systems. This work studies the influence of temperature, longitudinal vehicle ... -
Modeling of tire vertical behavior using a test bench
(IEEE, 2020)Tire models are of great importance for precise investigations of vertical vehicle dynamics, including vehicular safety and riding comfort. An adequate modeling of the tire is crucial to properly reproduce vehicle vertical ... -
Modeling the external flow of a novel HorseShoe receiver and the evaluation of thermal performance
(Elsevier, 2022-10)The linear receiver of a Parabolic Trough Collector is the most critical element in the entire system. The Universal Vacuum Air Collector concept is the most extended type of receiver in both experimental and industrial ... -
New approach for analysing the effect of minor and major solar cooker design changes: Influence of height trivet on the power of a funnel cooker
(Elsevier, 2021-08-14)In present work, the power values of two funnel cookers were determined by following the standard ASAE S580.1 procedure and also a novel improved approach for better analysing the effect of minor design changes. This new ... -
Non-intrusive determination of shock absorber characteristic curves by means of evolutionary algorithms
(Elsevier, 2023-01-01)The fault detection in the components of the suspension system of road vehicles is of great importance. The optimal performance of the suspension system has a big influence on the safety and stability of a vehicle. Vehicle ... -
Numerical validation of simple non-stationary models for self-propelled pitching foils
(Elsevier, 2022-09-15)High-resolution numerical simulations of the self propelled locomotion of two-dimensional pitching foils are used to assess simplified models based on linear potential theory for the fluid-foil interaction. These models are ... -
On the feasibility of a flexible foil with passive heave to extract energy from low wind speeds
(Elsevier, 2022-10)We explore numerically and theoretically the capability of flexible foils elastically mounted to translational springs and dampers at the leading edge to extract energy from low-speed winds through its passive heave ... -
On-line learning applied to spiking neural network for antilock braking systems
(Elsevier, 2023-09-18)Computationally replicating the behaviour of the cerebral cortex to perform the control tasks of daily life in a human being is a challenge today. First, … Finally, a suitable learning model that allows adapting neural ... -
Optical characterization of a funnel solar cooker with azimuthal sun tracking through ray-tracing simulation
(Elsevier, 2022-01-20)Funnel type solar cookers are simple and effective. Most of them rely on a multifaceted reflector to concentrate solar radiation on a cooking pot that is placed inside a transparent enclosure to create a greenhouse effect. ... -
Optical performance analysis of the Copenhagen solar cooker with COMSOL Multiphysics
(Elsevier, 2024-01-31)The Copenhagen solar cooker is a compact, panel-type design with four flexible reflective panels to redirect solar radiation onto a cooking pot. The geometric configuration of the panels is adjustable, depending on the sun ...