Study of conjugate heat transfer from the impingement of an inclined free slot jet onto the moving hot surface

Pawar, Shashikant; Patel, Devendra Kumar

doi:10.1016/j.icheatmasstransfer.2019.104429

Cited by 16 publications

(4 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The jet temperature 26 °C, and the turbulence intensity was maintained at 4%. The thermal conductiv specific heat capacity, and viscosity of air were polynomial functions related to t perature [32]. The parameters studied in this study were as follows: inlet Reynolds number Re, dimensionless height H/D, nozzle angle a.…”

Section: Boundary Conditionsmentioning

confidence: 99%

“…The jet temperature was 26 • C, and the turbulence intensity was maintained at 4%. The thermal conductivity, specific heat capacity, and viscosity of air were polynomial functions related to temperature [32].…”

Section: Boundary Conditionsmentioning

confidence: 99%

“…Ingole and Sundaram [19] used a free circular inclined jet to impinge a target with a surface area of 0.0285 m 2 , and the results showed that the average Nusselt number decreased with increasing jet inclination. Pawar and Patel et al [32] conducted numerical simulation research on the heat transfer characteristics of a free inclined slot jet impacting a hot moving surface and found that at different plate velocities, the wall average and local Nusselt numbers were the largest at an inclination angle of 25 • .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Numerical Study on the Heat Transfer of Confined Air-Jet Quenching of Steel Sheets

Ye,

Fu,

Liu

et al. 2024

Metals

View full text Add to dashboard Cite

The high flatness quenching of ultra-high-strength steel sheets is a technical problem in the steel industry. In this study, the traditional water and spray quenching methods were abandoned, and the roller-constrained slot air-jet quenching method was proposed for steel sheets below 3 mm thickness, which provided a theoretical reference for producing thinner, wider, and higher-flatness steel sheets. A 2D roller-constrained slot air-jet numerical model was established to study the flow field and heat transfer characteristics under the conditions of Reynolds number 24,644–41,076, a dimensionless jet height of 16–24, and a jet angle of 45°–135°. The results showed that the average Nusselt number on the heat transfer surface was proportional to Rem. At the same time, high-intensity heat transfer was achieved when the dimensionless height and jet angle were properly combined. At the same Reynolds number, the heat transfer intensity could be increased by 289%. In addition, the position of the peak Nusselt number was affected by reducing the jet angle, which served as an effective strategy for adjusting the martensite ratio and obtaining ideal mechanical properties.

show abstract

Section: Boundary Conditionsmentioning

confidence: 99%

Section: Boundary Conditionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Study on the Heat Transfer of Confined Air-Jet Quenching of Steel Sheets

Ye,

Fu,

Liu

et al. 2024

Metals

View full text Add to dashboard Cite

show abstract

“…Their result indicated that local heat flux increased when the stationary surface was put into motion. Turbulent flow and heat transfer were numerically investigated by Pawar and Patel 20 for the case featured by a moving hot plate impacted by an inclined slot jet. According to this study, the speed of the plate influences largely average Nu at small impact angles.…”

Section: Introductionmentioning

confidence: 99%

Effect of flow on heat transfer between a translating plate and gas discharged from multiple inclined slot nozzles

Kang,

Yin,

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

The presented study aims to reveal flow and heat transfer characteristics as a translating aluminum plate is impinged by high-temperature gas discharged from inclined slot nozzles. The computational fluid dynamics (CFD) and the fluid-solid interaction (FSI) techniques were used to simulate the impingement process. A comprehensive comparison of flow, heat transfer, and structural parameters was implemented. The results indicate that twin vortices are produced between the two inclined nozzles. When the velocity ratio increases from 0.1 to 1.0, the vortex at the left expands, while the right one is compressed. Meanwhile, average Nusselt number and the pressure coefficient exhibit opposite variation tendencies. The highest average pressure coefficient of 0.45 arises at a velocity ratio of 0.5. As the plate-nozzle distance increases, characteristic flow structures are developed, and the distributions of temperature and the pressure coefficient are uniformized. The maximum Nusselt number decreases from 473 to 266 when the nondimensional plate-nozzle distance increases from 4 to 8. Large deformation occurs at the middle part of the plate. High equivalent stress is concentrated at the front and rear ends of the plate, which is insensitive to the velocity ratio and the plate-nozzle distance.

show abstract

Heat transfer of movable air jet impingement over flat plate: experimental implementation

El-Wafa,

Attalla,

Shmroukh

et al. 2023

J Therm Anal Calorim

View full text Add to dashboard Cite

Study of conjugate heat transfer from the impingement of an inclined free slot jet onto the moving hot surface

Cited by 16 publications

References 29 publications

Numerical Study on the Heat Transfer of Confined Air-Jet Quenching of Steel Sheets

Numerical Study on the Heat Transfer of Confined Air-Jet Quenching of Steel Sheets

Effect of flow on heat transfer between a translating plate and gas discharged from multiple inclined slot nozzles

Heat transfer of movable air jet impingement over flat plate: experimental implementation

Contact Info

Product

Resources

About