Analysis and Optimization of Disk Brake Cooling via Computational Fluid Dynamics

Krüsemann, Rolf; Schmidt, G.

doi:10.4271/950791

Cited by 14 publications

(6 citation statements)

References 1 publication

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“…Global vehicle aerodynamics, most specifically flow in the regions of wheel cavities, undoubtedly has a substantial influence on brake cooling. Such studies can be successful, but the problem is very complex, as discussed in references [5] and [6]. Krusemann and Schmidt [5] researched the optimization of heat transfer coefficients of a standard brake disc with radial vanes.…”

Section: Introductionmentioning

confidence: 99%

“…Such studies can be successful, but the problem is very complex, as discussed in references [5] and [6]. Krusemann and Schmidt [5] researched the optimization of heat transfer coefficients of a standard brake disc with radial vanes. The vane geometry remained the same, and 'external' modifications allowed 20 per cent more mass flow through the channels, resulting in an increase in the average channel heat transfer coefficient by 15 per cent.…”

Section: Introductionmentioning

confidence: 99%

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Understanding and improving the convective cooling of brake discs with radial vanes

Galindo-Lopez

Tirovic

2008

Proceedings of the Institution of Mechanical Engineers, Part D:

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Detailed computational fluid dynamics (CFD) analyses of airflow and convective heat dissipation from a standard disc with radial vanes gave vital information regarding its weak points. Heat transfer from vanes is found to be particularly non-uniform, offering the largest scope for increasing local and average values of the coefficient of convective heat dissipation. A relatively simple modification — installation of an additional small vane (per channel, between the existing vanes) — demonstrated the ability to increase convective cooling from the ventilation channels. The radial position of these additional vanes was altered from disc ID towards OD, and best results were obtained with the vanes placed at the channel outlets (OD). An improvement in the total convective cooling (product of the average convective heat transfer coefficient and the entire disc wetted area) of nearly 14 per cent was achieved. In spite of better cooling, the new design has lower mass (air) flow when compared with the baseline design. The results are also presented in the form of Nusselt numbers, enabling their wider use. Conducted validation provided strong confidence in the accuracy of the results when searching for new solutions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Understanding and improving the convective cooling of brake discs with radial vanes

Galindo-Lopez

Tirovic

2008

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…Cooling in the form of water spray rather than simply spraying out water improves the cooling capacity on the one hand, because drop of water in the shape spray scattered outside the brake drum, which increases the relative contact area resulting in the improvement of cooling ability. At the same time, the increase of the relative contact area can obtain a higher energy efficiency ratio, thereby saving the consumption of cooling water [6]. On the other hand, the water spray will form a layer of water film when it is scattered on the surface of the brake drum, which reduces the thermal deformation caused by uneven cold and hot energy during cooling [7].…”

Section: 23the Arc Spray Devicementioning

confidence: 99%

Intelligent Cooling Devices for Truck’s Brake System

2022

J. Phys.: Conf. Ser.

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Many domestic traffic accidents are caused by high-temperature friction of truck’s brake drum resulting in failure of brake system. Therefore, it is the key to solve the problem of decline on brake drum performance caused by temperature. The following schemes are mainly adopted: improving brake structure and friction materials, adding auxiliary brake devices, and installing cooling devices for brake system. This paper summarizes the structure and characteristics of most intelligent cooling devices for brake system in China. In addition, based on these intelligent cooling devices, the paper also puts forward new intelligent cooling devices for truck’s brake system. The system uses sensors to analyze the temperature state of the brake drum. According to the analysis results, the central controller innovatively combines air pump and water pump to transform low-pressure water into high-pressure water, and then sprays and cools the brake drum through the water pipes and arc spray devices to ensure the normal operation of the brake system.

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“…Basically, thanks to its versatile capabilities, the CFD approach is known as a dependable tool for various scientific issues. Historically, the CFD model has been widely used for analyzing and optimizing disc brake cooling [152][153][154][155][156][157], transfer of flow and heat through the brake system [158][159][160], brake disc contamination [161], and brake dust particles [162,163].…”

Section: Computational Fluid Dynamics (Cfd)mentioning

confidence: 99%

Input Parameters for Airborne Brake Wear Emission Simulations: A Comprehensive Review

2021

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Non-exhaust emissions, generated by the wear of brake systems, tires, roads, clutches, and road resuspension, are responsible for a large part of airborne pollutants in urban areas. Brake wear accounts for 55% of non-exhaust emissions and significantly contributes to urban health diseases related to air pollution. A major part of the studies reported in the scientific literature are focused on experimental methods to sample and characterize brake wear particles in a reliable, representative, and repeatable way. In this framework, simulation is an important tool, which makes it possible to give interpretations of the experimental results, formulate new testing approaches, and predict the emission produced by brakes. The present comprehensive literature review aims to introduce the state of the art of the research on the different aspects of airborne wear debris resulting from brake systems which can be used as inputs in future simulation models. In this review, previous studies focusing on airborne emissions produced by brake systems are investigated in three main categories: the subsystem level, system level, and environmental level. As well as all the information provided in the literature, the simulation methodologies are also investigated at all levels. It can be concluded from the present review study that various factors, such as the uncertainty and repeatability of the brake wear experiments, distinguish the results of the subsystem and system levels. This gap should be taken into account in the development of future experimental and simulation methods for the investigation of airborne brake wear emissions.

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Analysis and Optimization of Disk Brake Cooling via Computational Fluid Dynamics

Cited by 14 publications

References 1 publication

Understanding and improving the convective cooling of brake discs with radial vanes

Understanding and improving the convective cooling of brake discs with radial vanes

Intelligent Cooling Devices for Truck’s Brake System

Input Parameters for Airborne Brake Wear Emission Simulations: A Comprehensive Review

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