کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
763831 1462878 2014 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Estimation of exhaust gas aerodynamic force on the variable geometry turbocharger actuator: 1D flow model approach
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Estimation of exhaust gas aerodynamic force on the variable geometry turbocharger actuator: 1D flow model approach
چکیده انگلیسی


• Estimation of aerodynamic force on variable turbine geometry vanes and actuator.
• Method based on exhaust gas flow modeling.
• Simulation tool for integration of aerodynamic force in automotive simulation software.

This paper provides a reliable tool for simulating the effects of exhaust gas flow through the variable turbine geometry section of a variable geometry turbocharger (VGT), on flow control mechanism. The main objective is to estimate the resistive aerodynamic force exerted by the flow upon the variable geometry vanes and the controlling actuator, in order to improve the control of vane angles. To achieve this, a 1D model of the exhaust flow is developed using Navier–Stokes equations. As the flow characteristics depend upon the volute geometry, impeller blade force and the existing viscous friction, the related source terms (losses) are also included in the model. In order to guarantee stability, an implicit numerical solver has been developed for the resolution of the Navier–Stokes problem. The resulting simulation tool has been validated through comparison with experimentally obtained values of turbine inlet pressure and the aerodynamic force as measured at the actuator shaft. The simulator shows good compliance with experimental results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 84, August 2014, Pages 436–447
نویسندگان
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