# K. Jafar

## Publications

##### 1 MHD Stagnation Point Flow towards a Shrinking Sheet with Suction in an Upper-Convected Maxwell (UCM) Fluid

**Authors:**
A. Ishak,
R. Nazar,
I. Pop,
K. Jafar

**Abstract:**

The present analysis considers the steady stagnation point flow and heat transfer towards a permeable shrinking sheet in an upper-convected Maxwell (UCM) electrically conducting fluid, with a constant magnetic field applied in the transverse direction to flow and a local heat generation within the boundary layer, with a heat generation rate proportional to* **(T-T**) ^{p}* Using a similarity transformation, the governing system of partial differential equations is first transformed into a system of ordinary differential equations, which is then solved numerically using a finite-difference scheme known as the Keller-box method. Numerical results are obtained for the flow and thermal fields for various values of the stretching/shrinking parameter

*λ,*the magnetic parameter

*the elastic parameter*

__M,__*the Prandtl number*

__K,__*Pr,*the suction parameter

*s,*the heat generation parameter

*Q*, and the exponent

*p.*The results indicate the existence of dual solutions for the shrinking sheet up to a critical value λ

_{c }whose value depends on the value of

*M, K,*and s. In the presence of internal heat absorption (Q<0) the surface heat transfer rate decreases with increasing p but increases with parameters

*Q*and

*s*when the sheet is either stretched or shrunk.

**Keywords:**
stagnation point,
shrinking sheet,
magnetohydrodynamic (MHD),
boundary layer flow,
UCM fluid

## Abstracts

##### 1 MHD Stagnation Point Flow towards a Shrinking Sheet with Suction in an Upper-Convected Maxwell (UCM) Fluid

**Authors:**
A. Ishak,
R. Nazar,
I. Pop,
K. Jafar

**Abstract:**

**Keywords:**
stagnation point,
shrinking sheet,
magnetohydrodynamic (MHD),
boundary layer flow,
UCM fluid