Results 181 to 190 of about 441,780 (278)

Effects of Concentrations of Water‐Based MgO Nanofluid on Heat Transfer Performance in Shell‐and‐Tube Heat Exchanger

Energy Science &Engineering, EarlyView.
This figure shows the variation of the total heat transfer coefficient of a shell and tube heat exchanger with different concentrations of water‐based MgO nanofluids at different inlet flow rates. The results indicate that the total heat transfer coefficient increases with increasing flow velocity, and at different volume fraction settings, the ...
Li Zhang, Yifan Cheng, Yang Liu, Yongju Zhang, Ziyun Chen   +4 more
wiley   +1 more source

Numerical Investigation on Drag Reduction Mechanisms of Biomimetic Microstructure Surfaces. [PDF]

Biomimetics (Basel)
Liu J, Xu J, Ding C, Shan D, Guo B.
europepmc   +1 more source

Boundary Layer Meshing and Wall Functions Selection for Numerical Simulation of Solid–Liquid Two‐Phase Flow

Energy Science &Engineering, EarlyView.
This figure illustrates the optimal near‐wall treatment schemes (first‐layer height and wall function type) for solid–liquid two‐phase CFD of suspended sediment, which are correlated with particle size and flow velocity. ABSTRACT Near‐wall treatment (boundary‐layer meshing and wall functions) is a major uncertainty in solid–liquid two‐phase CFD of ...
Zichao Zhang, Huayang Hai, Soon Keat Tan, Yanpin Li, Pengcheng Hao   +4 more
wiley   +1 more source

Lab-scale investigation of drag reduction for crude oil by oil-soluble polymers. [PDF]

Sci Rep
Liu K, Xiong X, Dai X, Liang Y, Gou J, Cheng Z, Zhang G, Lu Y, Zhang J.   +8 more
europepmc   +1 more source

Design of HAWT Rotor for Non‐Uniform Inflow Conditions: A Theoretical and Experimental Approach for Shear Flow

Energy Science &Engineering, EarlyView.
This paper aims to provide a robust design approach for HAWTs operating in shear flow. This study fills a critical research gap by integrating BEM and vortex theories for blade design in non‐homogeneous inflow conditions. The authors of the paper made an effort to develop and test an experimentally unsophisticated model of a turbine working in shear ...
Agnieszka Dorota Woźniak, Piotr Strzelczyk, Taeseong Kim   +2 more
wiley   +1 more source

The coherent structures of EVP fluid flow past a circular cylinder. [PDF]

Theor Comput Fluid Dyn
Corrochano A, Iqbal KT, Parvar S, Le Clainche S, Tammisola O.   +4 more
europepmc   +1 more source

EVSS‐Based Simulation Techniques for the Viscoelastic Fluids With Pure Polymer Melts Using Three‐Field Approach

International Journal for Numerical Methods in Fluids, EarlyView.
This paper presents a finite element method for simulating highly viscoelastic flows of pure polymer melts using the Elastic Viscous Stress Splitting formulation. The method avoids higher‐order derivatives in the weak formulation by reformulating the convective term in the constitutive equation.
R. Ahmad, P. Zajac, S. Turek
wiley   +1 more source

Influence of non-Newtonian Rabinowitsch fluids on the operational efficiency of sine film thrust bearings with porous walls. [PDF]

Sci Rep
Palani D, Rahul AK.
europepmc   +1 more source

Polymer Stress‐Tensor Calculation for a Laminar Submerged Viscoelastic Jet Flow Using Different Constitutive Models

International Journal for Numerical Methods in Fluids, EarlyView.
This study presents an efficient method to compute polymer stress‐tensor components in viscoelastic laminar jet flows using models such as Oldroyd‐B, Giesekus, PTT, and FENE. By assuming a stationary and parallel flow, the methodology significantly reduces computational cost.
Rafael de Lima Sterza, Leandro Franco de Souza, Marcio Teixeira de Mendonca, Analice Costacurta Brandi   +3 more
wiley   +1 more source

CFD-PBM modelling for predicting the size and distribution of silica nanoparticles synthesized in an ultrasound-assisted swirling vortex flow reactor. [PDF]

Ultrason Sonochem
Liu L, Shi W, Li B, Wang G, Guo Y, Yang X, Zhou W.   +6 more
europepmc   +1 more source