Simulation of supercritical diesel jets using the PC-SAFT EoS

چکیده مقاله :
A numerical framework has been developed to simulate supercritical Diesel injection using a compressible
density-based solver of the Navier-Stokes equations along with the conservative formulation of the energy
equation. Multi-component fuel-air mixing is simulated by considering a diffused interface approximation. The
thermodynamic properties are predicted using the Perturbed Chain Statistical Associating Fluid Theory (PCSAFT)
real-fluid equation of state (EoS). This molecular-based EoS requires three empirically determined but
well-known parameters to model the properties of a specific component, and thus, there is no need for extensive
model calibration, as is typically the case when the NIST library is utilised. Moreover, PC-SAFT can handle
flexibly the thermodynamic properties of multi-component mixtures, which is an advantage compared to the
NIST library, where only limited component combinations are supported. This has allowed for the properties of
Diesel fuel to be modelled as surrogates comprising four, five, eight and nine components. The proposed numerical
approach improves the overall computational time and overcomes the previously observed spurious
pressure oscillations associated with the utilization of conservative schemes. In the absence of experimental data,
advection test cases and shock tube problems are included to validate the developed framework. Finally, twodimensional
simulations of planar jets of n-dodecane and a four component Diesel surrogate are included to
demonstrate the capability of the developed methodology to predict supercritical Diesel fu

توضیحات تکمیلی :

مقاله ISI انگلیسی اصلی
سال انتشار:2019
فایل ISI انگلیسی اصلی ، با فرمت Pdf
تعداد صفحات فایل ISI انگلیسی اصلی: 18 صفحه

نویسندگان/توضیحات : مقاله ISI مربوط به ترجمه مقابل / شبیه سازی جتهای دیزلی(گازوئیلی) فوق بحرانی با استفا ده از نظریه آماری سیال تجمعی زنجیره اختلالی - معادله حالت سیال واقعی (س.رودریگز-پی.کوکووینیس- ام.گاوایسیس)
تاریخ ارسال : 1398/01/18
تعداد بازدید : 338
کلمات کلیدی : Supercritical PC-SAFT EoS Diesel fuel injection
تعداد صفحات : 18
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