Onset of Soret driven instability in a Darcy–Maxwell nanofluid
نویسندگان
چکیده
منابع مشابه
Onset of convection in Soret-driven instability.
It is common knowledge that light fluids rise while heavy fluids sink in the gravity field. The most obvious case is the isothermal Rayleigh-Taylor instability when a heavy fluid is placed on top of a light one. In the nonisothermal case, while heating from above, the density stratification is stable in a pure liquid. However, unstable density stratification might be established in a binary mix...
متن کاملSoret Dufour Driven Thermosolutal Instability of Darcy-maxwell Fluid
Linear stability of double diffusive convection of Darcy-Maxwell fluid with Soret and Dufour effects is investigated. The effects of the Soret and Dufour numbers, Lewis number, relaxation time and solutal Darcy Rayleigh number on the stationary and oscillatory convection are presented graphically. The Dufour number enhances the stability of Darcy-Maxwell fluid for stationary convection while it...
متن کاملPeculiarity of 3D Flow Organization in Soret Driven Instability
Three-dimensional time-dependent numerical calculations are performed in a cubic cell filled with a binary mixture of water (90%) and isopropanol (10%). The system is heated from above while the Soret coe‰cient ðSTÞ is negative, i.e., a thermally stable Rayleigh–Benard configuration. Due to the Soret e¤ect, the heavier liquid is accumulated on the top of the lighter one and buoyant convection c...
متن کاملOn the onset of triple-diffusive convection in a layer of nanofluid
On the onset of triple-diffusive convection in a horizontal layer of nanofluid heated from below and salted from above and below is studied both analytically and numerically. The effects of thermophoresis and Brownian diffusion parameters are also introduced through Buongiorno model in the governing equations. By using linear stability analysis based on perturbation theory and applying normal m...
متن کاملA Novel Indicator to Predict the Onset of Instability of a Gravitational Flow on a Slope
In order to present a quantitative indicator for the onset of instability, in this paper, the critical points of a stratified gravitational flow on a slope are found and analyzed. These points are obtained by means of the solution of the two-dimensional Navier-Stokes equations via the standard Arakawa-C finite-difference method. Results show that in the marginal Richardson numbers, the critical...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: SN Applied Sciences
سال: 2019
ISSN: 2523-3963,2523-3971
DOI: 10.1007/s42452-019-1325-3