High-Efficiency Computing Technology for Thermohydrodynamic Lubrication Analysis

Chan, Chia Wen; Chang, Shih Hung; Jeng, Yeau-Ren

doi:10.1080/10402004.2015.1051197

Cited by 5 publications

(3 citation statements)

References 13 publications

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“…It was noted that the execution time could be further deceased using more processor cores. Several recent studies [10][11][12][13][14][15][16] also show a few bearing analyses and optimum designs using OpenMP in Fortran coding. It was found that the execution time of the numerical simulations can be significantly reduced with a small amount of time and effort spent in code revision for parallel computing.…”

Section: Introductionmentioning

confidence: 99%

Fluid-film lubrication computing with many-core processors and graphics processing units

Wang

Chen

2018

Advances in Mechanical Engineering

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The advancement of modern processors with many-core and large-cache may have little computational advantages if only serial computing is employed. In this study, several parallel computing approaches, using devices with multiple or many processor cores, and graphics processing units are applied and compared to illustrate the potential applications in fluid-film lubrication study. Two Reynolds equations and an air bearing optimum design are solved using three parallel computing paradigms, OpenMP, Compute Unified Device Architecture, and OpenACC, on standalone shared-memory computers. The newly developed processors with many-integrated-core are also using OpenMP to release the computing potential. The results show that the OpenACC computing can have a better performance than the OpenMP computing for the discretized Reynolds equation with a large gridwork. This is mainly due to larger sizes of available cache in the tested graphics processing units. The bearing design can benefit most when the system with many-integrated-core processor is being used. This is due to the many-integrated-core system can perform computation in the optimization-algorithm-level and using the many processor cores effectively. A proper combination of parallel computing devices and programming models can complement efficient numerical methods or optimization algorithms to accelerate many tribological simulations or engineering designs.

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Section: Introductionmentioning

confidence: 99%

Fluid-film lubrication computing with many-core processors and graphics processing units

Wang

Chen

2018

Advances in Mechanical Engineering

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“…The utilization of CNG storage systems in light duty vehicles has a limited market penetration because of the cost of the pressure vessel and its occupancy of cargo space. Adsorbents materials are becoming an attractive option to develop low pressure and conformable NG storage system (7)(8)(9)(10)(11). The storage capacity of NG (methane) can be increased over that of compression alone through the use of an adsorbent.…”

Section: Introductionmentioning

confidence: 99%

“…While research into adsorbents has focused on assessing their gas storage capabilities there is, to our knowledge, no reported data on their compatibility with the storage vessel and components in NG environment. High surface area porous materials such as Activated Carbons and Metal Organic Frameworks (MOF) are considered as the most promising adsorbents (4,(7)(8)(9)(10)(11). The Cu 3 BTC 2 MOF, copper benzene-1,3,5-tricarboxylate also known as HKUST-1, has been extensively studied for gas storage.…”

Section: Introductionmentioning

confidence: 99%

Environmental Aspects of Using Metal Organic Frameworks as Adsorbents in Natural Gas Storage Systems

2016

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This work is in direct support of GM’s ongoing effort in developing transformational technologies to reduce the barriers of onboard Natural Gas mass adoption. Alternative NG storage technologies seek to bypass the pressure and thermal challenges of traditional storage technologies by utilizing the chemical and physical properties of certain solid materials to store gas. While the gas adsorption/desorption properties, thermodynamics and kinetics of the adsorbent materials have been evaluated in depth there is, to our knowledge, no report of the compatibility of the same materials with the pressure vessel liner at (P, T) operating conditions. The stability of the benchmark Metal Organic Framework, Cu3BTC2, in the presence of Natural Gas contaminants and its impact on the metallic tank liner material has been investigated and will be addressed in this report.

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The benefits of concurrent computing in tribology system design

Wang

Chen

et al. 2019

Tribology International

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High-Efficiency Computing Technology for Thermohydrodynamic Lubrication Analysis

Cited by 5 publications

References 13 publications

Fluid-film lubrication computing with many-core processors and graphics processing units

Fluid-film lubrication computing with many-core processors and graphics processing units

Environmental Aspects of Using Metal Organic Frameworks as Adsorbents in Natural Gas Storage Systems

The benefits of concurrent computing in tribology system design

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