A review of hybrid integral transform solutions in fluid flow problems with heat or mass transfer and under Navier–Stokes equations formulation

Cotta, Renato M.; Lisbôa, Kleber Marques; Curi, Marcos; Balabani, Stavroula; Quaresma, João Nazareno Nonato; Pérez-Guerrero, J. S.; Macêdo, Emanuel Negrão; Amorim, Nelson

doi:10.1080/10407790.2019.1642715

Cited by 17 publications

(2 citation statements)

References 76 publications

(112 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The above-mentioned continuity, momentum and energy equations are displayed as Zhang et al. (2024), Renato et al. (2019), and Belhocine and Wan Omar (2015):…”

Section: Methods and Experimentsmentioning

confidence: 99%

Optimization design of custom pattern based on microclimate heat transfer

Zhang,

Guo,

Wei

et al. 2024

IJCST

View full text Add to dashboard Cite

PurposeThe aim of this paper is to achieve a reasonable microclimate between clothing and the human body and optimize the custom dress pattern.Design/methodology/approachAn interactive design method of 3D modeling, virtual try-on and heat transfer simulation are used. First, a 3D dress is designed with nonuniform rational B-splines curves and tried on virtually. After that, the heat transfer in the body-air-clothing microclimate and temperature distributions on the clothing surface are obtained. Based on the heat transfer in the body-air-clothing system, we design a method to improve the thermal comfort by optimizing the garment pattern digitally. Then, this paper utilized two heat transfer validating indexes to quantify the improvement of thermal comfort, and evaluate the modified model of dress.FindingsThe microclimate under the clothing is varied with the air gap distance, and the heat transfer on the area of the clavicle, bust point and front abandon are higher than other parts due to the narrow air gaps. In view of thermal comfort, the pattern optimization changes the distance ease and reforms the air circulating efficiency. The mean heat transfer and its standard variance are changing by about 10% and more than 20%. Thus, the heat transfer evaluation indexes are suitable to represent the heat transfer and thermal comfort in the microclimate system.Research limitations/implicationsIt can be concluded that the methodology proposed in this paper has the advantage of interactive design, 3D visualization and local heat transfer simulation. This technology meets the need of personalized customization and well-considered garment and has broad application prospects.Originality/valueThis study demonstrates that modifying the distance ease on body key girths based on heat transfer is a reliable way to improve thermal comfort. This method meets the consumers’ demand of the comfort of body-fit clothing under the condition of daily activities.

show abstract

“…The above-mentioned continuity, momentum and energy equations are displayed as Zhang et al. (2024), Renato et al. (2019), and Belhocine and Wan Omar (2015):…”

Section: Methods and Experimentsmentioning

confidence: 99%

Optimization design of custom pattern based on microclimate heat transfer

Zhang,

Guo,

Wei

et al. 2024

IJCST

View full text Add to dashboard Cite

show abstract

“…With these assumptions, the governing Reynolds-averaged equations are summarized below (Renato et al, 2019 ):…”

Section: Methodsmentioning

confidence: 99%

Numerical investigation of heat transfer in a garment convective cooling system

2022

View full text Add to dashboard Cite

A personal microclimate management system is designed to maintain thermal comfort which allows people to overcome a harsh environment. It consists of several micro-fans placed in the garment side seam to provide cooling air. The computational fluid dynamics method was used to simulate the three-dimensional model and analysis the influence of fan’s number and air gap distance. The obtained results depict that the introduced cool airflow will find its way along paths with flow resistance minimized and exhaust through several separated exit. The body heat flux is taken away at the same time. The convection effect is enhanced by the increase in the fans’ numbers, but the fans’ cooling effect varies a lot because of various air gap distances. When the air gap is small enough, the cooling air impact the body surface directly and causes fierce heat loss. While the air gap distance is large enough, the heat transfer along the skin surface could be enhanced by the eddy flow which is existed in the air gap between body and garment. These phenomena can maintain the body’s thermal comfort in a suitable range.

show abstract