4257

4028

كارشناسي ارشد

تبديل انرژي

اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك

1387

[نه]، 88، [II]ص.: مصور، جدول، نمودار

ص. ع. به: فارسي وانگليسي

محسن، دوازده امامي

ابراهيم شيراني

23/07/1387

احمد صداقت، احمد صابونچي

1396/09/01

كتابنامه

مهندسي مكانيك

ID4028

به فارسي وانگليسي: قابل رويت در نسخه ديجيتال

AbstractThis study is concerned with the motion of spherical solid particles in fluid flow TheEulerian frame work is used to analyze governing equation of gas phase whereas theparticle phase is treated within the Lagrangian point of view The steady state Reynoldsaverage Navir Stokes equation are considered for the gas phase The effect of turbulenceon the flow field is modeled via three different turbulence models Standard k Modifiedk and Algebraic Reynolds stress and the effect of each model is evaluated The inter phase effect are accounted by adding appropriate source term in all conservation equationof the gas phase and additionally considering wake turbulence two cases have beenstudied where first five ones considered for the validation of transport deposition anddispersion of particles in fluid flow in backward step The computational simulation resultsare in good agreement with the existing experimental data and earlier simulation results The results indicate that both the standard k and the modified k models fail toaccurately predict the fluctuating flow field It is concluded that a non isotropic turbulencemodel should be used to predict the fluctuating turbulence field In the second case particles are injected in 2D duct with on obstructed block The effect of Brownian forceincreased whereas particle diameter is reduced and more particles entered in theRecirculation zone of back of block

محسن، دوازده امامي

ابراهيم شيراني

احمد صداقت، احمد صابونچي