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  • Recent progress and challenges in exploiting graphics processors in computational fluid dynamics

    Creator:
    Niemeyer, Kyle E. and Sung, Chih-Jen
    Abstract:
    The progress made in accelerating simulations of fluid flow using GPUs, and the challenges that remain, are surveyed. The review first provides an introduction to GPU computing and programming, and discusses various considerations for improved performance. Case studies comparing the performance of CPU- and GPUbased solvers for the Laplace and...
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    fluid dynamics Kyle E. Niemeyer · Chih-Jen Sung Received: date / Accepted: date Abstract The progress

  • NiemeyerKyleMechIndMfgEngnMechanismReductionForMulticomponent(SupplementaryMaterial).pdf

    Creator:
    Niemeyer, Kyle E. and Sung, Chih-Jen
    Abstract:
    Strategies and recommendations for performing skeletal reductions of multicomponent surrogate fuels are presented, through the generation and validation of skeletal mechanisms for a three-component toluene reference fuel. Using the directed relation graph with error propagation and sensitivity analysis method followed by a further unimportant reaction elimination stage, skeletal mechanisms valid...
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    study using toluene reference fuels Kyle E. Niemeyer and Chih-Jen Sung Supplementary material The

  • NiemeyerKyleMechIndMfgEngnMechanismReductionForMulticomponent.pdf

    Creator:
    Niemeyer, Kyle E. and Sung, Chih-Jen
    Abstract:
    Strategies and recommendations for performing skeletal reductions of multicomponent surrogate fuels are presented, through the generation and validation of skeletal mechanisms for a three-component toluene reference fuel. Using the directed relation graph with error propagation and sensitivity analysis method followed by a further unimportant reaction elimination stage, skeletal mechanisms valid...
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    (Chih-Jen Sung) Preprint submitted to Combustion and Flame November 25, 2013 close prediction of

  • Reduced Chemistry for a Gasoline Surrogate Valid at Engine-Relevant Conditions

    Creator:
    Niemeyer, Kyle E. and Sung, Chih-Jen
    Abstract:
    A detailed mechanism for the four-component RD387 gasoline surrogate developed by Lawrence Livermore National Laboratory has shown good agreement with experiments in engine-relevant conditions. However, with 1388 species and 5933 reversible reactions, this detailed mechanism is far too large to use in practical engine simulations. Therefore, reduction of the detailed...
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    Chih-Jen Sung‡ School of Mechanical, Industrial, and Manufacturing Engineering, Oregon State

  • Accelerating moderately stiff chemical kinetics in reactive-flow simulations using GPUs

    Creator:
    Niemeyer, Kyle E. and Sung, Chih-Jen
    Abstract:
    The chemical kinetics ODEs arising from operator-split reactive-flow simulations were solved on GPUs using explicit integration algorithms. Nonstiff chemical kinetics of a hydrogen oxidation mechanism (9 species and 38 irreversible reactions) were computed using the explicit fifth-order Runge–Kutta–Cash–Karp method, and the GPU-accelerated version performed faster than single- and six-core CPU...
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    simulations using GPUs Kyle E. Niemeyera,b,1,∗, Chih-Jen Sungb aDepartment of Mechanical and Aerospace

  • Mechanism reduction for multicomponent surrogates: A case study using toluene reference fuels

    Creator:
    Niemeyer, Kyle E. and Sung, Chih-Jen
    Abstract:
    Strategies and recommendations for performing skeletal reductions of multicomponent surrogate fuels are presented, through the generation and validation of skeletal mechanisms for a three-component toluene reference fuel. Using the directed relation graph with error propagation and sensitivity analysis method followed by a further unimportant reaction elimination stage, skeletal mechanisms valid...
    Resource Type:
    Article

  • BradyCounterflowIgnitionOfN-Butanol.pdf

    Creator:
    Brady, Kyle B., Hui, Xin, Sung, Chih-Jen, and Niemeyer, Kyle E.
    Abstract:
    Critical to the development of predictive combustion models is a robust understanding of the coupled effects of chemical kinetics and convective-diffusive transport at both atmospheric and elevated pressures. The present study describes a new variable-pressure non-premixed counterflow ignition experiment designed to address the need for well-characterized reference data to validate...
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    elevated pressures Kyle Brady †a , Xin Hui a,b , Chih-Jen Sung a , Kyle Niemeyer c a

  • BradyCounterflowIgnitionOfN-ButanolAppendixC.pdf

    Creator:
    Brady, Kyle B., Hui, Xin, Sung, Chih-Jen, and Niemeyer, Kyle E.
    Abstract:
    Critical to the development of predictive combustion models is a robust understanding of the coupled effects of chemical kinetics and convective-diffusive transport at both atmospheric and elevated pressures. The present study describes a new variable-pressure non-premixed counterflow ignition experiment designed to address the need for well-characterized reference data to validate...

  • BradyCounterflowIgnitionOfN-ButanolAppendixB.pdf

    Creator:
    Brady, Kyle B., Hui, Xin, Sung, Chih-Jen, and Niemeyer, Kyle E.
    Abstract:
    Critical to the development of predictive combustion models is a robust understanding of the coupled effects of chemical kinetics and convective-diffusive transport at both atmospheric and elevated pressures. The present study describes a new variable-pressure non-premixed counterflow ignition experiment designed to address the need for well-characterized reference data to validate...

  • BradyCounterflowIgnitionOfN-ButanolAppendixA.pdf

    Creator:
    Brady, Kyle B., Hui, Xin, Sung, Chih-Jen, and Niemeyer, Kyle E.
    Abstract:
    Critical to the development of predictive combustion models is a robust understanding of the coupled effects of chemical kinetics and convective-diffusive transport at both atmospheric and elevated pressures. The present study describes a new variable-pressure non-premixed counterflow ignition experiment designed to address the need for well-characterized reference data to validate...