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Intensificação da transferência de calor em um trocador de calor compacto com dimples
(Universidade Estadual Paulista (Unesp), 2022-07-26)
Os trocadores de calor são usados amplamente em aplicações industriais e cotidianas, podendo ser aplicados em diversos projetos de engenharia. Neste projeto foi estudado uma das principais formas de aprimorar estes ...
Pool boiling performance of HFE-7100 on hierarchically structured surfaces
(2021-12-01)
The evolution of the processes for modifying/manufacturing surfaces has facilitated the advancement in pool boiling research with surfaces capable of increasing the heat transfer coefficient (HTC) and the critical heat ...
Simulação numérica da convecção natural em cavidade porosa bi-dispersa aquecida por baixo
(Universidade Tecnológica Federal do ParanáCuritibaBrasilDepartamento Acadêmico de MecânicaEngenharia MecânicaUTFPR, 2013-04-23)
In this work it is investigated the transport phenomenon by heat transfer through natural convection in a bi-disperse square cavity heated from below. The cavity is represented by porous, square, disconnected blocks uniformly ...
Simulação numérica da convecção natural em cavidades porosas aquecidas lateralmente utilizando o método lattice boltzmann
(Universidade Tecnológica Federal do ParanáCuritibaBrasilDepartamento Acadêmico de MecânicaEngenharia MecânicaUTFPR, 2015-06-24)
In this work, the transport phenomenon of heat transfer through natural convection in a square cavity heated from the side is filled with saturate fluid and a homogeneous porous medium investigated, using the Lattice ...
Convective heat transfer enhancement in low Reynolds number flows with wavy walls
(ElsevierBrasilNúcleo Interdisciplinar de Dinâmica dos Fluidos, 2019)
Impacts of wind stress changes on the global heat transport, baroclinic instability, and the thermohaline circulation
(Advances in Meteorology, 2018)
On the gas heating mechanism for the fast anode arc reattachment in a non-transferred arc plasma torch operating with nitrogen gas in the restrike mode
(Springer, 2015-10)
The present work provides a detailed kinetic analysis of the time-resolved dynamics of the gas heating during the arc reattachment in nitrogen gas in order to understand the main processes leading to such a fast reattachment. ...
Impacts of Wind Stress Changes on the Global Heat Transport, Baroclinic Instability, and the Thermohaline Circulation
(2016-01-01)
The wind stress is a measure of momentum transfer due to the relative motion between the atmosphere and the ocean. This study aims to investigate the anomalous pattern of atmospheric and oceanic circulations due to 50% ...
Parametric optimization of a stamped longitudinal vortex generator inside a circular tube of a solar water heater at low Reynolds numbers
(2021-08-01)
Solar Water Heater (SWH) has low efficiency and the performance of this type of device needs to be improved to provide useful and ecological sources of energy. The passive techniques of augmentation heat transfer are an ...