Mixed Bioconvective Flow Over a Wedge in Porous Media Drenched with a Nanofluid

被引:16
作者
Chamkha, Ali J. [1 ]
Nabwey, Hossam A. [2 ,3 ]
Abdelrahman, Z. M. A. [4 ]
Rashad, A. M. [5 ]
机构
[1] Prince Mohammad Bin Fahd Univ PMU, Mech Engn Dept, Al Khobar 31952, Saudi Arabia
[2] Prince Sattam Bin Abdulaziz Univ, Coll Sci & Humanities Al Kharj, Dept Math, Al Kharj 11942, Saudi Arabia
[3] Menoufia Univ, Dept Basic Engn Sci, Fac Engn, Shibin Al Kawm 32511, Egypt
[4] Arab Acad Sci & Technol & Maritime Transport AAST, Coll Engn & Technol, Basic & Appl Sci Dept, Aswan Branch, Aswan 81712, Egypt
[5] Aswan Univ, Dept Math, Fac Sci, Aswan 81528, Egypt
关键词
Mixed Bioconvection; Porous Media; Nanofluids; Gyrotactic Microorganisms; Wedge; BOUNDARY-LAYER-FLOW; CONVECTION FLOW; NATURAL-CONVECTION; OXYTACTIC BACTERIA; HORIZONTAL CHANNEL; 2-PHASE MODELS; FALLING PLUME; SOLID SPHERE; PLATE; HEAT;
D O I
10.1166/jon.2020.1728
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A mathematical model is accentuated the mixed bioconvective flow on a vertical wedge in a Darcy porous medium filled with a nanofluid containing both nanoparticles and gyrotactic microorganisms. Thermophoresis and Brownian motion impacts are addressed to consolidate energy and concentration equations with passively-controlled boundary conditions. A mixed convective parameter for the whole regime of the mixed convective is appointed. The system of governing partial differential equations is converted into a non-similar set, which are then solved by an implicit finite difference method. By taking the impacts of the varying pertinent parameters, namely, the bioconvection nanofluids and wedge angle parameters in the entire mixed convection regime, the numerical results are analyzed graphically for the dimensionless the velocity, temperature, nanoparticle volume fraction and the density motile microorganisms profiles as well as the local Nusselt and motile microorganism numbers.
引用
收藏
页码:24 / 35
页数:12
相关论文
共 44 条
[1]   Mixed convection boundary layer flow from a vertical flat plate embedded in a porous medium filled with nanofluids [J].
Ahmad, Syakila ;
Pop, Ioan .
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2010, 37 (08) :987-991
[2]   Comparative analysis of single and two-phase models for CFD studies of nanofluid heat transfer [J].
Akbari, M. ;
Galanis, N. ;
Behzadmehr, A. .
INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2011, 50 (08) :1343-1354
[3]   Free convection boundary layer flow past a horizontal flat plate embedded in porous medium filled by nanofluid containing gyrotactic microorganisms [J].
Aziz, A. ;
Khan, W. A. ;
Pop, I. .
INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2012, 56 :48-57
[4]   NUMERICAL STUDY OF MIXED BIOCONVECTION IN POROUS MEDIA SATURATED WITH NANOFLUID CONTAINING OXYTACTIC MICROORGANISMS [J].
Beg, O. Anwar ;
Prasad, V. R. ;
Vasu, B. .
JOURNAL OF MECHANICS IN MEDICINE AND BIOLOGY, 2013, 13 (04)
[5]   FINITE DIFFERENCE METHODS OF SOLUTION OF BOUNDARY-LAYER EQUATIONS [J].
BLOTTNER, FG .
AIAA JOURNAL, 1970, 8 (02) :193-&
[6]   Convective transport in nanofluids [J].
Buongiorno, J .
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2006, 128 (03) :240-250
[7]   Natural convection from a vertical permeable cone in a nanofluid saturated porous media for uniform heat and nanoparticles volume fraction fluxes [J].
Chamkha, A. J. ;
Rashad, A. M. .
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, 2012, 22 (08) :1073-1085
[8]   Radiation Effects on Mixed Convection over a Wedge Embedded in a Porous Medium Filled with a Nanofluid [J].
Chamkha, Ali J. ;
Abbasbandy, S. ;
Rashad, A. M. ;
Vajravelu, K. .
TRANSPORT IN POROUS MEDIA, 2012, 91 (01) :261-279
[9]  
Choi S.U.S., 1995, DEV APPL NONNEWTONIA, V66
[10]  
El Nasser M. N., 2019, THERM SCI, V388, DOI [10.2298/TSCI190712388M, DOI 10.2298/TSCI190712388M]